Public Information Statement
Issued by NWS Denver/Boulder, CO

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NOUS45 KBOU 250145
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COZ030>051-252300-

Public Information Statement
National Weather Service Denver/Boulder CO
645 PM MST SAT DEC 24 2016

...This week in metro Denver weather history...

20-25 In 1983...an extremely bitter cold spell occurred.  The
        temperature remained below zero for 115 hours in Denver...
        the longest sub-zero period on record.  The mercury dipped
        to 21 degrees below zero on the 21st...the coldest recorded
        temperature in over 20 years.  The cold was accompanied
        by winds that plunged chill factors to 50 to 70 degrees
        below zero.  Two people froze to death in Denver; both
        were found outside dead of exposure.  Numerous cases of
        frostbite were reported.  Hundreds of water pipes broke
        from the intense cold...water mains and natural gas lines
        also fractured...and electricity consumption reached record
        levels.  Light snow totaling 5.8 inches fell at times...and
        holiday traffic was delayed at Stapleton International
        Airport for several hours.  Eight daily temperature records
        were set at the time.  The all-time record low maximum
        temperature for the month of 8 degrees below zero on the
        21st still stands today.  Other temperature records still
        standing include record low maximum temperatures of 5
        degrees below zero on both the 22nd and 23rd and 4 degrees
        below zero on the 24th.
24-25 In 1891...heavy snowfall of 7.0 inches in downtown Denver
        provided a white Christmas.  Most of the snow...6.5 inches...
        fell on the 24th.  Northwest winds were sustained to 30
        mph with gusts to 40 mph on the 24th.
      In 1894...snow began falling during the evening of the 24th...
        ended during the early afternoon of the 25th...and totaled
        6.4 inches in downtown Denver.  Northwest winds were
        sustained to 26 mph with gusts to 30 mph on the 24th.  The
        maximum snow depth on the ground was 5 inches.  The high
        temperature was only 18 degrees on the 25th after a low of
        8 degrees.
      In 1980...strong chinook winds of 50 to 60 mph occurred in the
        foothills with a wind gust to 90 mph recorded at Wondervu.
        West winds gusted to 33 mph at Stapleton International
        Airport on the 25th.
      In 1997...a relatively rare Christmas snowstorm blanketed
        much of northeastern Colorado.  Snowfall in and near
        the Front Range foothills and south of metro Denver ranged
        from 5 to 8 inches.  Elsewhere...new snow accumulations were
        generally 1 to 3 inches.  Snowfall totaled only 1.5 inches
        at the site of the former Stapleton International Airport.
        North winds gusted to 29 mph at Denver International
        Airport on the 24th.
      In 2012...a winter-like weather moved into northeast Colorado
        on Christmas Eve as an upper level trough and a strong cold
        front moved through the region. At Denver International
        Airport...2.5 inches of snow fell from Christmas Eve through
        Christmas morning.  The high temperatures on Christmas Day
        only reached 16 degrees...which was the coldest day of the
        month.
25    In 1873...northwest winds were sustained to 36 mph during
        the morning and to 48 mph in the evening.  The chinook
        winds warmed the temperature to a high of 53 degrees.
      In 1883...gusty very strong winds raked Boulder...causing
        11 hundred dollars in damage.
      In 1985...Table Mesa in Boulder was buffeted by wind gusts
        to 68 mph.
      In 1993...occasional high winds occurred over portions of the
        higher foothills west of Boulder and Denver.  A wind gust
        to 87 mph was recorded on Squaw Mountain...and a gust to 83
        mph occurred at Rollinsville.  Northwest winds gusted to
        to 35 mph at Stapleton International Airport.
      In 2007...a winter storm brought heavy snow to the Front Range
        of Colorado. The heaviest snow fell near the foothills of
        Boulder...Douglas and Jefferson Counties.  The snow caused
        accidents throughout the Denver metropolitan area.
        Gusty winds produced snow drifts from 2 to 3.5 feet
        in depth.  Total snowfall for the calendar day in Denver
        was 7.8 inches...setting a new record for Christmas day.
        The measurement was taken at the former Stapleton
        International Airport; the previous record was 6.2 inches...
        set in 1894.  Storm totals in the Front Range Foothills
        included:  13.5 inches at Coal Creek Canyon; 12 inches...5
        miles east-southeast of Aspen Park; 11 inches; 6 miles
        southwest of Kassler; 10.5 inches at Eldorado Springs.
        Elsewhere...storm totals ranged from 5 to 10 inches.
        In the Urban Corridor storm totals included:  9 inches
        near Elizabeth; 8 inches in southwest Denver...Highlands
        Ranch...Marston Reservoir and Wheat Ridge; 7.5 inches in
        Arvada; 7 inches in Centenniel and Lakewood; 6.5 inches
        in Aurora and 8 miles southeast of Watkins; 6 inches in
        Boulder...Englewood and Parker.  Elsewhere...storm totals
        ranged from 3 to 5 inches.
25-26 In 1904...after a warm Christmas Day with a high temperature
        of 50 degrees...a late day cold front plunged temperatures
        to a low of 7 degrees...produced northeast winds sustained
        to 40 mph with gusts to 54 mph...and produced 5.2 inches of
        snow overnight for a late white Christmas.  The maximum
        temperature on the 26th was only 16 degrees.
       In 2014...a winter storm brought a rare Christmas Day
        snowfall to the Front Range Foothills and Urban Corridor...
        from the afternoon of the 25th to the evening of the 26th.
        Storm totals included: 12.5 inches...4 miles west of Boulder;
        12 inches...4 miles southwest of Eldorado Springs and 4
        miles south of Golden; 11 inches at Genesee; 10 inches near
        Allenspark...5 miles west of Chatfield Reservoir...5 miles
        southwest of Golden and near Tiny Town; 8 inches in Lakewood
        and Louisville; 7.5 inches in Niwot; 7 inches in Longmont;
        with 6 inches in Broomfield and Frederick. At Denver
        International Airport...5.1 inches of snowfall was observed.
25-31 In 1980...temperatures were unusually warm during the week
        between Christmas and New Year`s.  High temperatures for
        the week ranged from the mid-50`s to the mid-70`s.  Four
        temperature records were set.  Record highs occurred on
        the 26th with 68 degrees...the 27th with 75 degrees...and
        the 30th with 71 degrees.  A record high minimum
        temperature of 41 degrees occurred on the 27th.
26    In 1877...heavy snow fell during the early morning and
        totaled nearly 6 inches.  Precipitation from melted
        snow was 0.58 inch.  After the snowfall...a number of
        sleighs were seen on the city streets.
      In 1879...after a morning low of 4 degrees below zero...
        the temperature climbed to a high of 57 degrees in
        the city.
      In 1907...west winds were sustained to 40 mph.  The chinook
        winds warmed the temperature to a high of 62 degrees.
      In 1949...west winds gusted to 50 mph at Stapleton Airport.
      In 1998...intense...but localized...downslope high winds
        developed near Wondervu in the foothills southwest
        of Boulder.  Winds frequently gusted to 100 mph with
        a highest reported wind gust to 104 mph.  West winds
        gusted to only 43 mph at Denver International Airport.
26-27 In 1954...a major storm dumped heavy snow across metro Denver.
        Snowfall totaled 8.6 inches at Stapleton Airport.  The
        storm produced the heaviest snowfall of the calendar year
        and was the only measurable snowfall in December.
      In 1987...a snowstorm stalled in northeastern Colorado...giving
        metro Denver its worst winter storm in 4 years.  Total
        snowfall from the storm ranged from 12 to 18 inches on the
        east side...1 to 2 feet in Boulder County...and 2 to 3 feet
        in western and southern parts of metro Denver.  The
        largest reported snowfall was 42 inches at Intercanyon in
        the foothills southwest of Denver.  Snowfall totaled 14.9
        inches at Stapleton International Airport.  Winds were light
        on the 26th...but increased as high as 40 mph on the 27th...
        creating near-blizzard conditions and forcing complete
        closure of Stapleton International Airport for about
        8 hours.  The strong winds whipped drifts to 5 feet high
        on the east side of town.  All interstate highways leading
        from Denver were closed on the 27th.
26-28 In 1979 a heavy snow storm dumped 6 to 10 inches of snow over
        the metro area and 15 to 20 inches at Boulder with up to 2
        feet in the foothills west of Boulder.  Heavy snowfall
        totaled 6.0 inches at Stapleton International Airport
        where north winds gusted to 21 mph.  Most of the snow...
        4.8 inches...fell on the 27th.
27    In 1895...west chinook winds sustained to 44 mph with gusts
        to 48 mph warmed the temperature to a high of 52 degrees.
      In 1901...an apparent cold front produced sustained north
        winds to 41 mph with gusts to 48 mph.
      In 1957...northwest winds gusting to 52 mph produced some
        blowing dust across metro Denver.
      In 1975...a northwest wind gust to 53 mph was recorded at
        Stapleton International Airport.
      In 1976...a strong Pacific cold front moving across metro
        Denver produced a northwest wind gust to 53 mph at
        Stapleton International Airport.
      In 1990...high winds raked the eastern foothills with a wind
        gust to 84 mph clocked on Fritz Peak near Rollinsville.
        The strong northwest winds of 50 to 70 mph whipped newly
        fallen snow over higher areas into billowy clouds several
        hundred feet high that could be seen from most locations
        across metro Denver.
      In 1996...another round of high winds developed over portions
        of the Front Range foothills during the morning hours.
        Several wind gusts from 70 to 100 mph were reported at
        Wondervu southwest of Boulder.  West-northwest winds
        gusted to 38 mph at Denver International Airport.
      In 2005...a trained weather observer in Georgetown recorded
        a wind gust to 94 mph.  No damage was reported.
      In 2007...a winter storm brought heavy snow to portions of the
        Urban Corridor and adjacent plains.  Storm totals generally
        ranged from 3 to 7 inches.  Locally heavier bands produced
        up to 10 inches of snow.  In the Urban Corridor...storm
        totals included:  10 inches...10 miles south-southeast
        of Buckley AFB and at Castle Pines; 9.5 inches...4 miles
        south-southeast of Aurora and Kassler; 7.5 inches...2 miles
        southeast of Highlands Ranch; 7 inches in Aurora and
        Sedalia; 6.5 inches in Arvada...4 miles east of Denver and
        Lafayette; 6 inches in Castle Rock and Thornton.  A
        measurement of 5.4 inches was taken at the former
        Stapleton International Airport.  The official total for
        the month was 20.9 inches; making it the 6th snowiest
        December on record.
27-28 In 1997...high winds combined with fresh snow from a previous
        storm caused highways to become slick from drifting snow
        and near whiteout conditions in localized ground blizzards.
        Strong winds blew snow across the runways at Centennial
        Airport...which glazed over and formed areas of ice.  Two
        planes were damaged when they slid off the runway while
        landing.  No injuries were reported.  Numerous accidents
        also occurred on I-25 and I-70 as ice formed under the
        same conditions.  A rollover accident which injured
        4 people on State Highway 93 near the Rocky Flats
        Environmental Test Facility was also attributed to the
        high winds.  The high winds caused an office building
        and showroom under construction in Golden to collapse.
        The largest wall was 180 feet long and 28 feet high.
        Some high wind reports included:  86 mph at Golden Gate
        Canyon...72 mph near Conifer...and 70 mph at Jefferson
        County Airport and the National Center for Atmospheric
        Research on the mesa near Boulder.  West-northwest winds
        gusted to 53 mph at Denver International Airport on the
        27th.
      In 1998...damaging downslope winds formed in and near the
        foothills.  Peak wind gusts ranged from 71 to 114 mph.
        Numerous trees were blown down in Coal Creek Canyon and
        near Gross Reservoir.  Power lines were blown down...
        resulting in scattered outages.  Peak wind reports
        included:  114 mph at Wondervu...92 mph in Golden Gate
        Canyon...88 mph in Coal Creek Canyon...and 79 mph 8 miles
        west of Conifer.  West winds gusted to 46 mph at Denver
        International Airport on the 28th.
27-29 In 1983...a second surge of bitter cold air in less than a
        week was less intense.  Record breaking low temperatures
        of 12 degrees below zero on the 28th and 15 degrees below
        zero on the 29th were accompanied by 3.7 inches of snowfall
        and northeast winds gusting to 23 mph.
28    In 2001...brief high winds developed in the foothills west
        of Denver.  Winds gusted to 86 mph on Fritz Peak near
        Rollinsville.  West to northwest winds gusted to 39 mph
        at Denver International Airport where the temperature
        climbed to a high of 51 degrees.
28-29 In 1906...a trace of snow fell on both days...which along
        with a trace of snow on the 5th...was the only snow of
        the month...ranking the month the second least snowiest
        December on record.
      In 1970...wind gusts to 87 mph were recorded at the National
        Center for Atmospheric Research in Boulder.  Winds gusted
        to only 46 mph in downtown Boulder.  Damage was minor.
      In 2006...while metro Denver residents were still digging
        out from the heavy snowfall and blizzard that occurred
        on December 20-21...the second major winter storm in a
        week buried the city and the eastern foothills again in
        more deep snow.  Heavy snowfall ranged from 1 to 2 1/2
        feet in the foothills and from 6 to 18 inches across the
        city.  Another slow moving storm system centered over the
        Texas panhandle produced deep upslope flow over the high
        plains and against the Front Range Mountains.  The storm
        produced blizzard conditions over the plains mainly south
        of Interstate 76.  Interstate 70 as well as other roads
        and highways was closed from Denver to the Kansas line due
        to snow and blizzard conditions.  Greyhound was forced to
        cancel all bus trips from Denver.  The heaviest snow fell
        in and near the foothills and south of Denver over the
        Palmer Divide...where north winds sustained at speeds of
        20 to 30 mph with gusts to 40 mph piled the snow into
        drifts 4 to 14 feet deep.  In the city...the heavy snowfall
        persisted for a total of 29 hours.  Snowfall totals across
        metro Denver included:  17.5 inches at Ken Caryl; 15 inches
        3 miles south-southeast of Morrison; 14 inches in Boulder
        and Lone Tree; 12 inches in Castle Rock and Highlands
        Ranch; 11 inches in Wheat Ridge; 10.5 inches in Littleton;
        10 inches in Arvada...Broomfield...and Louviers; and 8.5
        inches in Lakewood and Thornton.  Officially...snowfall
        totaled 8.0 inches at Denver Stapleton.  North winds
        sustained to 25 mph with gusts to 32 mph produced some
        blowing snow at Denver International Airport.  In the
        city...this second storm increased the total snowfall for
        the month to 29.4 inches...making the month the third
        snowiest on record.  In the foothills the snow fell at a
        rate of 3 to 4 inches an hour at times.  Total snowfall
        in the foothills included:  30 inches near Genesee;
        29.5 inches 12 miles northwest of Golden; 25 inches in
        Evergreen and near Bergen Park; 24 inches near Conifer;
        23.5 inches 3 miles southwest of Golden and near Gold
        Hill; 23 inches near Jamestown; 22.5 inches in
        Rollinsville; 19.5 inches in Aspen Springs; 19 inches
        near Blackhawk; 18.5 inches at Nederland; 16 inches
        in Indian Hills...at Intercanyon...and in Eldora; 15.5
        inches at Echo Lake; and 12 inches near Ralston
        Reservoir.  The total cost of snow removal just at
        Denver International Airport from this storm and the
        previous storm was in tens of millions of dollars.  The
        airport estimated up to 6.7 million dollars in extra
        costs for contractors...overtime...equipment...de-icing
        chemicals...and other expenses.  The two storms cost the
        airport 4.6 million dollars in loss concession revenues.
        United Airlines reported lost revenue of over 25 million
        dollars from the two storms...while Frontier Airlines
        lost an estimated 12.1 million dollars.
29    In 1997...high winds persisted mainly in and near the
        foothills.  Strong cross winds gusting between 60 and
        70 mph blew a rental truck off the roadway in northern
        Jefferson County near the Coal Creek Canyon road.  West
        winds gusted to 33 mph at Denver International Airport.
      In 2005...high winds were recorded across metro Denver.
        Peak wind gusts included 75 mph near Chatfield Reservoir
        and 64 mph at Denver International Airport.  No damage was
        reported.
29-30 In 1898...heavy snowfall totaled 6.2 inches in downtown
        Denver.  Northeast winds were sustained to 35 mph with
        gusts to 40 mph on the 29th.
      In 1912...strong winds buffeted Boulder...causing hundreds of
        dollars damage.  The winds were described as one of the
        most terrific in the history of the city.
      In 1923...a cold wave caused temperatures to plunge 58
        degrees in 24 hours.  The temperature was 54 degrees at
        2:00 PM on the 29th and only 4 degrees below zero at the
        same time on the 30th.  The low temperature of 14 degrees
        on the 29th was the high temperature on the 30th.  The low
        temperature on the 30th dipped to 10 degrees below zero.
        Light snowfall totaled only 0.7 inch.  Northeast winds
        were sustained to 23 mph on the 29th.
      In 2008...very strong Chinook winds blasted areas in and near
        the foothills of Boulder and Jefferson Counties.  The wind
        blew down trees and power poles...downed electrical lines
        and fences...and damaged homes and vehicles.  Scattered
        power outages were reported along the Front Range.  In
        Metropolitan Denver alone...24000 Xcel customers were
        affected by the outages.  Four planed were damaged at the
        Vance Brand Municipal Airport in Longmont...one was heavily
        damaged.  Insurance companies estimated up to 7 million
        dollars in damage.  Peak wind gusts included 87 mph at the
        National Wind Technology Center...86 mph...2 miles north of
        Longmont; 77 mph at Erie...and 75 mph at Lafayette.  On the
        30th...a peak wind gust to 47 mph was recorded at Denver
        International Airport. .
30    In 1875...snow fell from the early morning into the early
        evening.  While the amount of snowfall was not recorded...
        precipitation from melted snow totaled 0.53 inch.
        Good sleighing was reported...so snowfall must have been
        5 inches or more.
      In 1895...northwest winds were sustained to 60 mph in the
        city.
      In 1897...west winds sustained to 52 mph with gusts to 60
        mph warmed the temperature to a high of 55 degrees.
      In 1912...west winds were sustained to 48 mph with gusts to
        52 mph.  The chinook winds warmed the temperature to a
        high of 50 degrees.
      In 1928...snowfall was 0.1 inch in downtown Denver.  This
        was the only measurable snow of the month...ranking the
        month the third least snowiest on record in the city.
      In 1990...strong downslope winds buffeted the eastern
        foothills.  Wind gusts to 91 mph were recorded atop Table
        Mesa in southwest Boulder...while a gust to 94 mph was
        clocked at Rollinsville.  The high winds caused whiteout
        conditions due to blowing snow along some highways south
        and north of Boulder.  The high winds downed power lines
        near the Rocky Flats plant south of Boulder.
      In 1998...high winds continued to buffet areas in and near
        the foothills.  Near Evergreen...a 100-foot-high blue
        spruce crashed down on the roof of a home...splitting the
        corrugated metal roof in half.  Fortunately...the tree...
        which measured 10 feet in circumference...only penetrated
        the home`s interior in a few places.  Peak wind reports
        included:  90 mph at Wondervu...88 mph at the Rocky Flats
        Test Facility...83 mph near Conifer...and 82 mph atop Blue
        Mountain near Coal Creek Canyon.  West winds gusted to
        39 mph at Denver International Airport.
30-31 In 1887...heavy snow totaled 6.5 inches in downtown Denver.
        Most of the snow...4.5 inches...fell on the 31st.  North
        winds were sustained to 18 mph.
      In 1928...snowfall of 0.6 inch was the only measurable snow
        of the month in the city.
      In 1947...post-frontal heavy snow totaled 6.3 inches over
        downtown Denver.  Most of the snow fell on the 30th.
        North winds were sustained to 17 mph on the 30th.
      In 1995...the foothills west of Denver received 5 to 9 inches
        of new snow...except for Bailey where 11 inches of snow were
        measured.  No snow fell at the site of the former Stapleton
        International Airport.
31    In 1890...northeast winds were sustained to 46 mph with gusts
        as high as 60 mph behind an apparent cold front.  A trace
        of sleet fell.
      In 1899...northwest winds were sustained to 44 mph with gusts
        as high as 48 mph.  The chinook winds warmed the temperature
        to a high of 49 degrees.
      In 1927...the temperature was below zero all day.  The high
        temperature of 3 degrees below zero was a record low
        maximum for the date.  The low temperature was 11 degrees
        below zero.
      In 1970...warm chinook winds whistled through Boulder.  A wind
        gust to 92 mph was recorded at the National Center for
        Atmospheric Research...while at the National Bureau of
        Standards...winds peaked to 70 mph.  Northwest winds gusting
        to 30 mph warmed the temperature to a high of 60 degrees at
        Stapleton International Airport.
      In 1993...occasional high winds occurred northwest of Denver
        and in the foothills.  A wind gust to 85 mph was recorded
        at Jefferson County Airport in Broomfield.  Wind gusts to
        86 mph occurred on Squaw Mountain with 75 mph recorded at
        Rollinsville.  West winds gusted to 46 mph at Stapleton
        International Airport.
      In 2011...an intense and fast moving storm system...produced a
        powerful windstorm across the Front Range. In the
        mountains and foothills...several locations recorded wind
        gusts in excess of 100 mph. Numerous trees were knocked
        down throughout Arapahoe National Forest. One man was
        killed when he was impaled by a falling tree limb while
        driving along U.S. Highway 36...north of Boulder. The
        strong winds produced extensive damage to fences and roofs...
        and also knocked down trees which resulted in power
        outages that affected 19 thousand residents along the
        Front Range.  In the mountains and foothills...peak wind
        gusts included: 111 mph...3 miles south-southeast of
        Pinecliffe; 101 mph...1 mile west of Lyons; 94 mph atop
        Berthoud Pass; 86 mph...3 miles south of Golden; 84 mph...
        4 miles northwest of Boulder; 81 mph in Boulder; 79 mph
        at Kenosha Pass...NCAR Mesa Lab and the junction of U.S.
        Highways 72 and 93; 77 mph at the National Wind Technology
        Center; and 76 mph...3 miles north-northwest of Morrison.
        Peak wind gusts for the Urban Corridor included: 80 mph...3
        mile east of Cedar Point; 77 mph in north Longmont; 67
        mph...10 miles east of Parker; 64 mph at Buckley AFB and
        Lakewood; 60 mph at Bennett and Front Range Airport in
        Watkins; 59 mph at Denver International Airport and Deer
        Trail; 58 mph at Rocky Mountain Regional Airport in
        Broomfield and 2 miles north-northwest of Louisville.
31-1  In 1900...low temperatures dipped to 19 degrees below zero on
        both days to establish daily record minimum temperatures.
      In 1975...only 4.2 inches of snow fell at Stapleton
        International Airport...while north of Denver a major
        blizzard raged.  All roads north of Denver into Wyoming
        were closed when strong winds whipped snow into 5 to 6
        foot drifts.  North winds gusted to 43 mph at Stapleton
        International Airport on the 31st...causing some blowing
        snow.  Freezing drizzle also fell on the 31st.
      In 1984...heavy snow fell in the foothills with 8 inches at
        Boulder and 6 inches in southern and western metro Denver.
        Only 1.5 inches of snow fell overnight at Stapleton
        International Airport.
      In 1991...a New Year`s Eve snow storm dumped 2 to 8 inches of
        snow across northeastern Colorado.  Snowfall totaled 3.4
        inches at Stapleton International Airport.  The 1.9 inches
        of snow that fell on the 31st was the only measurable
        snowfall of the month.
      In 2008...another brief period of high winds occurred in and
        near the foothills of Boulder and Jefferson Counties.  In
        Nederland...the strong wind snapped a blue spruce which
        landed on a nearby propane tank.  Some roofs in the
        immediate area were damaged and power lines were downed;
        which left 126 residences without electricity for six
        hours.  Peak wind gusts included 90 mph at the National
        Wind Technology Center...and 89 mph; 6 miles northwest of
        Boulder.  At Denver International Airport...a peak wind gust
        of 23 mph was measured from the southwest.
31-6  In 1973...the 31st marked the start of a protracted cold spell
        that extended into January of 1974 when temperatures
        dipped below zero on 7 consecutive days.  Record daily
        minimum readings occurred on the 3rd and 5th when the
        temperature plunged to 17 degrees below zero on both days.
        A record low daily maximum temperature of only 4 degrees
        occurred on the 5th.
31-7  In 1941...a protracted cold spell through January 7...1942...
        produced below zero low temperatures on 7 of the 8 days.
        A low temperature of 2 degrees on the 3rd prevented a
        string of 8 days below zero.  The coldest days during the
        period were the 1st with a high of 2 degrees and
        a low of 9 degrees below zero...the 4th with a high of 2
        degrees and a low of 11 degrees below zero...and the 5th
        with a high of 26 degrees and a low of 12 degrees below
        zero.

$$



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