Public Information Statement
Issued by NWS Denver/Boulder, CO
NOUS45 KBOU 290045
Public Information Statement
National Weather Service Denver/Boulder CO
645 PM MDT SAT MAY 28 2016
...This week in metro Denver weather history...
26-31 In 1995...a cool period with light morning showers and
moderate to heavy afternoon showers and thunderstorms
pushed rivers already swollen from mountain snow melt
over their banks causing minor flooding. Streams and
rivers such as the South Platte and Boulder Creek flooded
meadowlands...bike paths...roads near streams...and other
low lying areas. No significant property damage was
reported and crop damage was unknown. Rainfall totaled
1.79 inches at the site of the former Stapleton
International Airport and only 1.51 inches at Denver
29 In 1934...the low temperature dipped to only 66 degrees...the
all-time record highest minimum temperature for the month
In 1958...a microburst caused a brief wind gust to 56 mph at
In 1964...heavy rain caused flooding in the Harvey Gulch
area of southeast Denver. The high water damaged homes...
businesses...streets...and bridges. At Stapleton
International Airport...1.33 inches of rain were measured
with 1.76 inches total rainfall on the 29th and 30th. The
heavy rain during the last week of the month was the first
significant precipitation since April 3rd.
In 1967...3/4 to 1 inch diameter hail stones fell in the City
of Denver...but caused no reported damage. Hail as large as
3/4 inch was measured at Stapleton International Airport.
In 1975...the heaviest last snowfall of the season occurred
when 5.6 inches of snow were measured at Stapleton
International Airport. Rain all day on the 28th changed
to snow on the 29th and accumulated to a depth of 4 inches
on the ground. Northwest winds gusted to 31 mph.
Precipitation (rain and melted snow) on the 28th and 29th
totaled 1.48 inches.
In 1982...one man was killed and two others injured by a
lightning strike as they stood under a tree in the City of
Denver`s Washington Park.
In 1987...7/8 inch diameter hail fell near Castle Rock.
In 1990...thunderstorms over metro Denver produced several
small funnel clouds and two small tornadoes. The first
tornado (F0) touched down in northwest Denver and caused
roof damage to a house and snapped off the tops of several
trees. A second tornado (F1) touched down in Northglenn
and moved into Thornton damaging a group of self storage
garages...several vehicles...a wooden fence...several trees...
and the roof of an auto parts store. No injuries were
reported. The storms also caused minor street flooding
across northern and western sections of metro Denver.
Rainfall totals ranged from 1 to 3 inches. Lightning
started a small fire at a home in northwest Denver. The
fire was confined to the front rooms and was quickly
extinguished. Snow plows were used to clear 2 to 4 inches
of pea to marble size hail from a stretch of U.S. Highway
285 in Turkey Creek Canyon. Lightning felled a tree in
northeast Denver...while strong winds snapped off several
large tree limbs in the same area. Thunderstorm rainfall
totaled 0.82 inch at Stapleton International Airport
where southwest winds gusted to 30 mph.
In 1991...lightning struck a 13 year old boy in a field in
Fort Lupton. The boy was in critical condition in an area
hospital for 2 days before recovering.
In 1995...lightning struck a soccer goal post and injured
6 adults viewing a soccer game in Arvada. Although no
one received a direct hit from the lightning...all escaped
with only minor injuries...except one woman who was
In 1996...large hail...3/4 to 1 1/2 inches in diameter...
struck Lakewood and west Denver. Lightning sparked a
small fire when it struck an oil storage tank 5 miles
west of Brighton.
In 2001...lightning sparked a fire in an apartment complex in
Aurora...forcing the evacuation of 24 units. Most of the
fire damage was confined to the attic. Damage was
estimated at 100 thousand dollars.
In 2004...a man and his son were struck by lightning while
practicing on the driving range at the Meadows Golf Club
in southwest metro Denver. The father was killed by the
bolt...and his 16 year old son seriously injured. Three
other people standing nearby received only minor injuries.
In 2010...hail up to 7/8 inch in diameter was reported in
29-1 In 1894...heavy rain combined with snowmelt runoff caused
widespread flooding over the South Platte River basin.
Rainfall was heaviest in the foothills where 5 to 8
inches were measured over the 4 days. Heavy rainfall
west of Boulder flooded mining towns and damaged mining
properties. In the canyons above Boulder...railroads
and roads were washed out along with many bridges. The
floodwaters spread into central Boulder and covered a
wide area from University Hill north to near Mapleton
Hill to a maximum depth of 8 feet. Many houses were
swept away...and every bridge in Boulder was destroyed.
A few people...trapped in their homes by the floodwaters...
had to be rescued. However...the gradual rise of the flood
waters resulted in only one death. Boulder Creek spread to
a width of nearly one mile in the pasture land to the east
of Boulder. Extensive flooding on Left Hand Creek north
of Boulder washed away railroad and wagon bridges. The
heavy cloudbursts caused flooding on Bear Creek...which
washed away bridges...railroad tracks...and structures and
destroyed the canyon roadway. Morrison sustained the
heaviest flood damage on Bear Creek. In Denver...rainfall
totaled only 1.50 inches on the 30th and 31st...but the
heavy rainfall on upstream tributaries of the South Platte
River caused the river to rise as much as 10 feet above the
low water mark in the city...which caused some flooding of
pasture land downstream to a depth of 6 feet near Brighton.
30 In 1875...a windstorm lasting almost all day produced
sustained winds to 42 mph.
In 1935...southeast winds sustained to 29 mph with gusts to
34 mph produced a moderate duststorm during the afternoon.
In 1938...heavy thunderstorm rain and hail pummeled downtown
Denver during the evening hours. Rainfall accumulated to
1.63 inches. Hail accumulated to a depth of 18 inches.
In 1948...a localized thunderstorm caused flooding on Sand
Creek in Aurora and northeast Denver. Rainfall was only
0.49 inch in downtown Denver where light hail also fell.
In 1963...a golfer died of injuries received when struck
by lightning on a golf course southwest of Denver. A
warehouse in Denver was damaged and its contents destroyed
by a lightning-caused fire.
In 1967...up to 4.00 inches of rain in Lakewood and Wheat
Ridge caused flooding of roads and basements. Water was
several feet deep in some yards. Many streets were
temporarily closed. Hail as large as 1 inch in diameter
fell in Wheat Ridge. Hail piled up to 2 feet deep in some
low lying areas of east and southeast Denver. Snowplows
were employed to remove the hail. Stapleton International
Airport...where west winds gusted to 39 mph...received 1.51
inches of rain and hail...which forced the closure of the
runways for an hour. Hail stones to 3/4 inch in diameter
were measured at Buckley Field. A funnel cloud was sighted
near south Wadsworth Blvd. and Bear Creek. A tornado
touched down briefly in the vicinity of 60th and 62nd
Avenues near north Washington Street. The storm uprooted
trees and damaged one building. Doors were ripped from a
business house...widely scattering irrigation pipe. In
addition...a total of 3 funnel clouds were sighted in that
In 1970...hail up to 1 inch in diameter fell at Stapleton
In 1976...a single thunderstorm crossed south metro Denver
producing a funnel cloud 2 miles south of Arapahoe Road
and Broadway. The storm moved over Buckley Field producing
a funnel cloud and 1/2 inch diameter hail. As the storm
moved northeast of the city...a large tornado touched down
near East 59th Ave and Tower Road and was on the ground for
20 minutes. It demolished a 60-foot-long cinderblock cow
shed...tore a wall from a machinery shed...tore shingles off
the roof of a farmhouse nearby...and felled 12 trees on one
farm. A boy in a feed shed 20 feet from a destroyed
building was not injured.
In 1977...3/4 to 1 inch diameter hail fell at or near
Stapleton International Airport. One inch to baseball
size hail fell in south Denver...damaging some homes and
extensively damaging some airplanes at Arapahoe County
Airport...now Centennial Airport. Hail covered highways
to a depth of 6 to 8 inches in south Denver.
In 1978...two funnel clouds were sighted 5 miles south of
Stapleton International Airport. Hail up to 1 1/4 inches in
diameter was reported in Wheat Ridge and northwest Denver.
Only 1/2 inch diameter hail fell at Stapleton International
In 1989...golf ball size hail fell at the junction of I-25 and
I-225. One inch diameter hail fell in Littleton.
In 1990...a line of severe thunderstorms crossed metro Denver...
producing wind gusts to 60 mph and scattered areas of
pea to marble size hail. Small trees and branches were
blown down by the strong thunderstorm winds...which also
caused minor power outages across southern and eastern
sections of metro Denver. The strong winds uprooted a 25-
to 30-foot tree in the Acres Green subdivision of northern
Douglas County. The tree blocked a busy street for several
hours. A pilot reported hail as large as 1 1/2 inches in
diameter covering the ground near the north end of a runway
at Stapleton International Airport. Heavy rain caused a
rock and mud slide that partially closed the Boulder Canyon
highway 10 miles west of Boulder. Thunderstorm winds gusted
to 41 mph at Stapleton International Airport.
In 2001...lightning ignited a fire which destroyed a luxury
home on Bear Mountain near Evergreen. Estimated damage
was set at 1 million dollars.
In 2003...flash flooding occurred in the Hayman Fire burn area
after as much as 1 inch of rain fell in 30 minutes. The
heavy rainfall washed out many access roads and closed State
Highway 67 between Deckers and West Creek. A 3-foot wall of
water ran down Fourmile Creek from the YMCA Camp at Shady
Brook...damaging one building in the camp and flooding roads.
Hail as large as 3/4 inch in diameter fell near Roggen in
In 2005...lightning struck as least 20 homes in Westminster.
Only minor damage was reported. Severe thunderstorms
produced hail as large as 1.25 inches in and near Fort
Lupton and hail to 3/4 inch near Indian Hills in Jefferson
In 2014...heavy rainfall...nearly 1.2 inches in 30 minutes...
produced localized street flooding in Boulder. The heavy
rain coupled with the already swollen creeks from the spring
runoff along Boulder Creek resulted in the flooding. Street
flooding was reported at 6th St and Canyon Blvd and at
Baseline Road. Some cars were stranded in the high water in
low lying areas and one person reported being trapped in his
30-31 In 1935...heavy thunderstorm rains overnight caused flash
flooding east of the city on both Kiowa and Bijou creeks...
resulting in a total of 9 deaths. Most of the damage was
on Kiowa Creek where there were more structures. The
water rose rapidly during the storm...ripping houses and
stores from their foundations and sweeping them downstream.
Precipitation in Denver totaled only 0.01 inch. Hail fell
in the city for a short time. The hail was very small and
caused no damage.
In 1983...a late storm of rain and snow hit the Front Range.
Over an inch of rain fell at some spots...and above 7
thousand feet...1 to 5 inches of snow whitened the ground.
Some snow flakes even fell in the western suburbs of metro
Denver on the night of the 30th.
In 2002...unseasonably warm weather at the end of the month
resulted in 3 temperature records. High temperature of
91 degrees on the 30th equaled the record maximum for the
date. Low temperature of 61 degrees on the 31st was a
record high minimum for the date. High temperature of 93
degrees on the 31st was a record maximum for the date.
31 In 1917...rainfall totaled 0.55 inch and was mixed briefly
with snow around midday. Only a trace of snow fell.
Cold temperatures during the day resulted in a high
of 44 degrees and a low of 35 degrees. The month closed
as the coldest May on record with a mean temperature of
only 48.7 degrees...about 8 degrees below normal. The
cold temperatures during the month had a marked effect
on shade trees and shrubs in the city. Elms were just
starting to leaf. Leaves on cottonwoods and maples were
only half formed. Lilacs were just blooming...and snowball
clusters would not bloom for days.
In 1959...the public reported a tornado briefly touching the
ground 10 miles south of Stapleton Airport. No damage
In 1984...a thunderstorm microburst produced a wind gust to 67
mph...7 miles east of Boulder.
In 1991...hail to golf ball size pummeled southern and
southeastern sections of metro Denver and continued on east
to Watkins. Several houses and cars were damaged. Later...
thunderstorms dumped heavy rain across the City of Denver...
causing street flooding in an area just south of downtown
and just northwest of downtown. Water was up to 10 inches
deep over northwest Denver. A brief tornado touched down in
Castle Rock where 3/4 inch diameter hail also fell.
In 1993...thunderstorms dropped dime size hail in Commerce
In 1994...lightning struck an apartment in Louisville and
damaged electronic equipment...including a computer.
In 2006...a severe thunderstorm produced 1 inch diameter
hail near Boulder.
1 In 1875...a windstorm during the late afternoon and early
evening produced sustained winds to 50 mph.
In 1898...south winds were sustained to 41 mph with gusts
to 46 mph.
In 1917...a trace of unmelted snow fell in downtown Denver.
Precipitation for the day totaled 0.08 inch...half of
which was estimated to be from melted snow.
In 1919...snowfall of 0.4 inch was measured in downtown
Denver. This was the greatest calendar day and 24-hour
snowfall ever recorded during the month of June.
Precipitation (rain and melted snow) totaled 0.15 inch.
Two temperature records were set. The low temperature
of 32 degrees was a record minimum for the date. The
high temperature of only 40 degrees was a record low
maximum for the date and the month. North winds were
sustained to 36 mph with gusts to 40 mph.
In 1951...a trace of snow fell at Stapleton Airport.
In 1961...hail as large as 1 1/2 inches in diameter fell
in west Denver with hail to 1 1/4 inches reported in
In 1965...a man struck by lightning in southeast Denver died
shortly after being admitted to a hospital. Lightning
damaged power lines in east and southeast Denver.
In 1980...strong thunderstorm winds blew in the windows of a
mobile home in Northglenn.
In 1990...a thunderstorm produced wind gusts to 63 mph in
Boulder. A small tornado touched down in a farmer`s field
between the towns of Louisville and Lafayette. Another
tornado was spotted in an open field 3 miles west of
Brighton. A funnel cloud was sighted near Hudson.
A microburst wind gust to 55 mph was recorded at Stapleton
International Airport. No damage was reported from any of
In 1991...severe thunderstorms producing large hail...damaging
winds...funnel clouds...and heavy rain were widespread across
metro Denver. Funnel clouds were reported in Lakewood...
Boulder...Arvada...and just east of the Rocky Mountain
Arsenal. Hail up to golf ball size fell in Lakewood...just
west of Sedalia...in Littleton...Arvada...Englewood...and the
City of Denver. A mobile home park in Jefferson County
reported hail to 3 feet deep. Up to 1.00 inch of rain
fell in 45 minutes near Boulder...causing Boulder Creek to
flow out of its banks. Rock and mud slides forced the
closure of many roads in Boulder County. Later in the
afternoon thunderstorms produced rainfall amounts of 2 to
3 inches over a couple of hours. Clear Creek in Golden
spilled over onto U.S. Highway 6. Heavy rains washed away
part of a bridge near Erie. Water was up to 18 inches
deep in Westminster. Wind gusts to 58 mph were reported at
Stapleton International Airport where 1/4 inch hail fell...
and heavy thunderstorm rainfall totaled 0.82 inches...briefly
reducing the visibility to 1 1/4 miles. Estimates of total
damage from these storms would exceed 7 million dollars.
In 1994...hail up to 1 inch in diameter fell over south Denver
In 1997...two short lived-tornadoes formed near Bennett...but
did no reported damage.
In 2002...strong winds from the outflow of dissipating showers
developed to the east of Denver. Near Strasburg...a spotter
recorded a wind gust to 58 mph.
1-2 In 2002...unusually very warm weather for so early in June
resulted in two temperature records. Maximum temperatures
of 96 degrees on the 1st and 93 degrees on the 2nd were
record highs for each date...respectively.
1-4 In 1977...unusually warm weather for this early in June
resulted in 3 maximum temperature records being equaled
at the time: 88 degrees on the 1st...90 degrees on the 2nd...
and 93 degrees on the 4th. Maximum of 91 degrees on the
3rd was not a record.
1-30 In 2012...it was the hottest June in Denver since weather
records began back in 1872. The average temperature for
the month was 75.0 degrees which was 7.6 degrees above
normal. There were a total of seventeen 90 degree days in
the month of June. The highlight of record setting month
was a stretch of five consecutive 100 degree days from the
22nd to the 26th. This was only the third time in Denver
weather history in which this happened. Two of the high
temperatures during the stretch peaked at 105 degrees...
which set the all time record for the month of June and
tied the all time maximum temperature for Denver.
2 In 1914...flooding occurred on Boulder Creek when heavy rains
added to heavy snowmelt runoff. Flooding damaged the water
supply system from the mountains into Boulder and destroyed
roads and bridges in the canyons above Boulder. The
flooding in central Boulder was described as the worst
since the tragic flood of May 29th through June 3rd in
1894. However...there was no reported loss of life. The
flood waters also inundated pasture land to the east of
In 1951...the lowest recorded temperature in June...30 degrees...
occurred. The unusually cold weather was accompanied by
0.3 inch of snowfall. Precipitation...both rain and
melted snow...totaled 0.30 inch.
In 1966...microburst winds gusted to 51 mph at Stapleton
In 1981...a severe thunderstorm roared through metro Denver...
dumping 2.00 inches of rain in as little as 20 minutes and
bombing many areas with hail to 1 3/4 inches in diameter.
The heavy rain caused local flooding with up to 3 feet of
water in some streets in northwest metro Denver. Part
of a street was washed out in Thornton. Lightning strikes
started a fire and caused a power outage just north of
Denver. Lightning also struck a barn which burned to the
ground in Brighton. Numerous cars sustained minor hail
damage. A tornado was spotted 4 miles northeast of the
Rocky Mountain Arsenal...but caused no damage.
In 1982...severe thunderstorms produced large hail across
metro Denver. Hail to 3/4 inch in diameter was reported in
Louisville and northeast Denver. Golf ball size hail fell
near Strasburg where two tornadoes were also sighted.
In 1983...a tornado touched down 5 miles south of Bennett. It
destroyed an outbuilding and did extensive damage to
greyhound dog shelters. Golf ball size hail fell near the
tornado...destroying some hay.
In 1985...3/4 inch hail fell in southwest metro Denver.
In 1989...large hail fell over eastern and central Denver. A
few stones were as large as baseballs...and many ranged from
3/4 inch to golf ball size. The hail piled up 2 to 4 inches
deep in some areas. Hail to 3/4 inch fell at Buckley Field
in Aurora...and 7/8 inch hail fell just east of Aurora. A
home in Louisville was struck by lightning and was 30
percent destroyed by the ensuing fire.
In 1991...strong thunderstorm winds in Arapahoe County...14
miles southeast of Stapleton International Airport...damaged
the roof of a home and a radio antenna. A funnel cloud...
4 miles northeast of Stapleton International Airport...was
sighted for 11 minutes by National Weather Service
In 1993...a tornado touched down briefly in south Denver...
destroying the 4-inch thick concrete roof of a building and
causing about 20 thousand dollars in damage. The twister
also picked up a trash dumpster and dropped it onto a car
30 feet away...causing an estimated 3 thousand dollars in
damage. Hail up to an inch in diameter fell in Aurora...
Conifer...and Bennett. Two funnel clouds were spotted near
Deckers. A funnel cloud was sighted for 19 minutes by
National Weather Service observers to the southwest of
Stapleton International Airport.
In 1994...lightning struck two homes in Denver...starting
fires which caused considerable damage to both. Hail to
3/4 inch in diameter fell in Golden.
In 1995...lightning struck a house in Nederland...causing a
fire that was doused by subsequent rainfall. A portion
of the roof and wall was damaged. The storm also left
most of Nederland without power for two hours. Lightning
also struck a high chimney of an elementary school in west
Denver. The jolt sprayed bricks around the school yard and
parking lot. Twenty students and teachers were in the
school building at the time...but all escaped without
injury. A funnel cloud was sighted over Fort Lupton...and
3/4 inch hail fell in Lafayette.
In 2003...severe thunderstorms produced strong winds and
large hail. Hail as large as 1 1/2 inches in diameter fell
near Parker. Estimated wind gusts to 70 mph occurred
near Parker and near Denver International Airport where
thunderstorm wind gusts to 52 mph were recorded. Wind
gusts to 60 mph were estimated near Bennett.
In 2005...a severe thunderstorm produced hail as large as
1 inch in diameter in the City of Denver. A tornado
was sighted near Bennett along with 3/4 inch hail.
In 2008...severe thunderstorms produced large hail over
western Arapahoe...northern Denver and southern Weld
Counties. Hail...2 inches in diameter...was observed near
Brighton; with hail to 1 1/2 inches in diameter...5 miles
east of Prospect. Hail to one inch in diameter was
observed near Buckley Field...Frederick and Denver.
In 2012...severe thunderstorm produced damaging thunderstorm
winds. Peak wind gusts included: 82 mph near Strasburg...
61 mph at Buckley Field...60 mph near Byers and southwest
Denver...58 mph near Watkins and 52 mph at Denver
International Airport. The microburst winds caused
extensive tree and roof damage. In addition...hail up to
1 inch in diameter was reported 3 miles east-southeast of
2-4 In 1989...heavy rain drenched metro Denver with the greatest
amounts recorded on the 3rd. Total rainfall ranged from
1 1/2 to 3 inches. Roads were washed out in Boulder County...
and flooded basements caused water damage to houses in the
Gunbarrel section of Boulder. In suburban Denver...heavy
rain caused minor flooding along Lena Gulch in Jefferson
County where two mobile home parks were evacuated.
Rainfall totaled 1.66 inches at Stapleton International
2-7 In 1921...heavy rainfall for nearly a week...on top of streams
already swollen by mountain snowmelt...produced widespread
flooding over the South Platte River basin...including the
tributaries through the canyons to the west and southwest
of Denver. Heavy rainfall over the 6-day period totaled
3.36 inches in Boulder...4.98 inches in Morrison...4.27 inches
in Castle Rock...and 2.94 inches in the City of Denver.
Rainfall amounts in the foothills were estimated between
3 and 6 inches. The narrow-gage tracks of the Colorado and
Southern Railroad were destroyed in the Platte canyon. From
the mouth of the canyon through the city to near Brighton...
the river spread from 1/2 to nearly 1 1/2 miles wide...
flooding farm and pasture land and destroying or damaging
many bridges. In the city...many businesses along with as
many as 500 homes were inundated...forcing their evacuation.
Bridges were swept away. The high waters flooded the rail
yards and stock yards in lower downtown...closing three
adjacent packing houses. The heavy rains also caused
flooding on Boulder Creek in Boulder on the 6th.
3 In 1951...a trace of snow fell at Stapleton Airport.
In 1961...torrential rains fell 10 to 30 miles north of
Denver...causing flooding in the town of Frederick. The
rush of water broke through and over a retaining dike
sending a 5-foot wall of water into the town...flooding
homes and damaging sewer lines...roads...and streets.
Golf ball size hail fell in Derby...west Denver...and
Lakewood...causing more than one million dollars in damage.
In 1981...severe thunderstorms produced tornadoes over metro
Denver. The first tornado touched down at the intersection
of Alameda Ave. and Sheridan Blvd. The twister moved north
along Sheridan Blvd....damaging businesses...apartment
buildings...homes...and vehicles. Over ten homes were
unroofed. The roof of one landed in the middle of a
neighborhood park. At least 10 mobile homes were wrecked.
The tornado curved to the northeast into northwest Denver...
hopping up and down in several places. Very strong winds
outside the actual funnel caused 20 to 30 thousand dollars
in damage in downtown Denver. The third floor of one old
building was demolished. No major injuries were reported
from the tornado...although several people were hurt
slightly in traffic accidents on Sheridan Blvd. in the
confusion caused by the storm. Damage in Lakewood alone
was estimated at 200 thousand dollars. At the same time...
the worst tornado to ever hit metro Denver struck Thornton.
Coming from the same thunderstorm that spawned the Denver
twister...the Thornton tornado tore a swath through the
heart of the city. 87 homes were destroyed...110 others
damaged at least moderately. In all...600 homes in a 100
block area sustained some damage. The twister also hit
shopping centers...several restaurants...and other buildings.
Seven of the 42 injured were considered serious. The storm
was strong enough to snap lamp posts in half and drive a 6-
inch slab of wood 2 feet into the ground. Damage was
estimated at up to 50 million dollars. The same storm that
struck Thornton produced another damaging tornado that
touched down in the northwest section of Fort Lupton. This
twister damaged 16 homes and numerous cars and campers.
Two children were slightly injured when the car they were
in was knocked about and its windows shattered by the
storm. The twister also damaged two commercial
buildings. Damage was very spotty...and observers said
the storm hopped up and down at least 3 times. Dollar
damage was estimated at 500 thousand dollars. The
thunderstorm complex that produced 3 damaging tornadoes
also dropped large hail which damaged many cars over
northwest Denver. One to 2 inches of rain fell in less
than an hour...flooding a mobile home park with 3 to 4 feet
of water on the northwest edge of Denver. The high water
damaged about half of the 392 homes in the park. Local
flooding was also reported in other areas across metro
Denver. A tornado was also sighted near Franktown...but
caused no damage. A thunderstorm wind gust to 52 mph was
recorded at Stapleton International Airport.
In 1982...a cold air funnel cloud touched down briefly in
southwest Denver. Two tornadoes were briefly spotted near
Watkins. No damage was reported from these storms. A
brief funnel cloud was sighted by National Weather Service
observers at Stapleton International Airport where 1/4 inch
In 1984...there were several sightings of tornadoes around
Parker. No damage was reported.
In 1985...a tornado just southeast of Aurora was spotted by a
National Weather Service employee. No damage was reported.
Severe thunderstorms pummeled the metro area with hail.
One inch to baseball size hail was reported in south
Lakewood...one inch hail in Littleton...3/4 inch to 1 inch
hail in Aurora...and golf ball size hail in south Denver.
In 1989...hail up to golf ball size fell over Arvada. A golf
course had to be evacuated as the hail accumulated up to 3
inches deep in some places. One inch diameter hail fell in
west Denver and Westminster.
In 1993...an early morning thunderstorm produced lightning...
which caused an attic fire at a residence in Niwot
northeast of Boulder. Damage was estimated at 40 thousand
dollars. No one was injured.
In 1994...hail to 1 1/2 inch diameter fell just northeast of
Boulder. One inch diameter hail fell in Golden.
Thunderstorm wind gusts to 70 mph were recorded in Erie.
In 1995...a tornado was sighted over open country near
Strasburg. No damage was reported. A funnel cloud was
sighted 11 miles east of Aurora where 3/4 inch hail fell.
In 2001...severe thunderstorms produced large hail over east
and southeast metro Denver. Hail as large as 1 3/4 inches
in diameter fell at Centennial Airport with 1 1/2 inch
hail near Buckley Field...1 1/4 inch hail in Parker...1 inch
hail near Elizabeth...7/8 inch hail at Cherry Creek
Reservoir...and 3/4 inch hail 20 miles north of Kiowa in
In 2002...severe thunderstorms dumped large hail across metro
Denver. Hail to 1 3/4 inches in diameter fell over
southeast Denver and 4 miles north of Aurora. Hail to
1 1/4 inches pelted Parker. One inch hail was measured
near Ft. Lupton...and 3/4 inch hail fell 9 miles southeast
of Buckley Field...near Strasburg...and at the site of the
former Stapleton International Airport.
In 2005...thunderstorms producing heavy rain and hail caused
flash flooding over parts of southeast metro Denver.
People became trapped in their vehicles by the high water...
and numerous water rescues were required. The hardest hit
areas included the vicinity of I-25 and Alameda Avenue...as
well as the intersection of Yale Avenue and Quebec Street.
Several basements were flooded along Eastman Place.
Severe thunderstorms brought heavy rain and hail to
eastern Centennial and southeastern Aurora. Up to 3 feet
of standing water was reported on east Orchard Road where
several motorists were stranded in their vehicles and needed
to be rescued. Hail to 3/4 inch in diameter fell in the
area. Ten vehicles were stranded on Grand Avenue...and most
had to be towed once the floodwaters receded. Water was
reportedly chest deep at one location on Girard Avenue.
Hail as large as 3/4 inch in diameter also was reported in
Littleton...near Parker...and near Buckley Air Force Base.
Hail to 7/8 inch was measured near Sheridan and Cherry
3-4 In 1904...a thunderstorm during the early morning of the
3rd turned into widespread general rain...which continued
into the early afternoon of the 4th. Rainfall totaled
4 In 1878...a "waterspout" or cloudburst of rain was sighted
up the South Platte Canyon at around noon. The resulting
high waters on the South Platte River slightly damaged a
railroad bridge in the city.
In 1937...a trace of snow fell in downtown Denver where
rainfall totaled 0.25 inch. Minimum temperature of 34
degrees was a record low for the date. Northeast winds
were sustained to 22 mph.
In 1951...the start of the second shortest snow-free period
on record...109 days...occurred with the last snow of the
season...a trace...on the 3rd. The first snow of the next
season occurred on September 21st when 4.2 inches of snow
fell at Stapleton Airport.
In 1954...a microburst produced brief sustained winds of 40
mph with gusts as high as 64 mph at Stapleton Airport.
In 1956...the failure of the Georgetown Dam caused downstream
flooding on Clear Creek at Idaho Springs and Golden.
In 1976...funnel clouds were sighted near Brighton...Erie...and
Dacono...all north of Denver. A tornado touched down briefly
1 1/2 miles east of Lafayette. Another tornado touched down
briefly at Hyland Hills Golf Course in Westminster. No
damage was reported.
In 1983...severe thunderstorms during the afternoon produced
3/4 inch hail in south Denver...golf ball size hail 5 miles
west of Parker...1 1/4 inch hail in Littleton...1 1/2 inch
hail in south Aurora.
In 2001...hail as large as 1 inch in diameter fell 17 miles
north of Bennett in Adams County.
In 2005...snow was mixed with rain for nearly an hour at
Denver International Airport during mid to late morning.
The temperature at the time was 45 degrees. Precipitation
totaled 0.36 inch for the day. Northwest winds gusted
to 37 mph.
In 2008...a severe thunderstorm produced large hail...up to
1 3/4 inches in diameter in Arvada...a northwest suburb of
Denver. Several vehicles were damaged. In addition...a
severe thunderstorms produced hail to 1 inch in diameter...
10 miles northeast of Manila...east of Denver International
4-5 In 1965...lightning and an 18-hour rain storm damaged streets
and roads and telephone and power lines across metro
Denver. Precipitation totaled 2.77 inches at Stapleton
International Airport where the visibility was reduced to
3 miles at times from pre-frontal thunderstorms and heavy
In 1998...a late season snow storm struck the Front Range
foothills. Up to 5 inches of snow fell in Coal Creek
Canyon. Light snow also fell over western sections of
metro Denver and briefly at Denver International Airport.
Snow covered the grass at the Denver Federal Center in
Lakewood before melting around mid-morning on the 5th.
No snow fell at the site of the former Stapleton
International Airport. Several temperature records
were set. High temperatures of 47 degrees on the 4th
and 49 degrees on the 5th were record low maximums for
their respective dates. Minimum temperature of 34 degrees
on both the 5th and 6th were record lows for those dates.