RSS Feeds
Climatological Report (Annual)
Issued by NWS Portland, ME
Issued by NWS Portland, ME
813
CXUS51 KGYX 040431
CLAPWM
PWMCLAPWM 000
TTAA00 GYX 030203
CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAY ME
1131 PM EST SUN JAN 03 2021
...................................
...THE PORTLAND ME CLIMATE SUMMARY FOR THE YEAR OF 2020...
CLIMATE NORMAL PERIOD: 1981 TO 2010
CLIMATE RECORD PERIOD: 1941 TO 2020 (FOR TEMPERATURES)
CLIMATE RECORD PERIOD: 1871 TO 2020 (FOR PRECIPITATION)
CLIMATE RECORD PERIOD: 1882 TO 2020 (FOR SNOWFALL)
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
................................................................
TEMPERATURE (F)
RECORD
HIGH 103 08/02/1975
LOW -39 02/16/1943
HIGHEST 94 07/20 93 1 94 07/21
LOWEST -4 01/21 -10 6 -2 02/02
AVG. MAXIMUM 58.5 55.8 2.7 55.8
AVG. MINIMUM 40.3 37.2 3.1 38.1
MEAN 49.4 46.5 2.9 46.9
DAYS MAX >= 90 13 4.6 8.4 4
DAYS MAX <= 32 23 42.1 -19.1 42
DAYS MIN <= 32 134 145.8 -11.8 146
DAYS MIN <= 0 3 7.7 -4.7 1
PRECIPITATION (INCHES)
RECORD
MAXIMUM 66.45 2005
MINIMUM 25.27 1941
TOTALS 41.48 47.25 -5.77 52.40
DAILY AVG. 0.11 0.13 -0.02 0.14
DAYS >= .01 112 130.9 -18.9 145
DAYS >= .10 70 79.4 -9.4 89
DAYS >= .50 26 30.1 -4.1 39
DAYS >= 1.00 14 11.5 2.5 12
GREATEST
24 HR. TOTAL 2.51 06/29
SNOWFALL (INCHES)
RECORDS
TOTAL 150.1 1956
TOTALS 53.3 61.9 -8.6 71.0
SINCE 7/1 20.1 15.1 5.0
SNOWDEPTH AVG. 1
DAYS >= TRACE 46 27.6 18.4 51
DAYS >= 1.0 11 15.9 -4.9 20
GREATEST
SNOW DEPTH 12 12/18
24 HR TOTAL 17.6 12/17
DEGREE DAYS
HEATING TOTAL 6269 7106 -837 6934
SINCE 7/1 2307 2611 -304 2485
COOLING TOTAL 681 360 321 474
FREEZE DATES
RECORD
EARLIEST 05/31/1961
LATEST 09/14/1963
EARLIEST 10/08
LATEST 05/02
................................................................
WIND (MPH)
AVERAGE WIND SPEED 7.5
HIGHEST WIND SPEED/DIRECTION 38/090 DATE 02/27
HIGHEST GUST SPEED/DIRECTION 53/190 DATE 09/30
SKY COVER
AVERAGE SKY COVER 0.53
AVERAGE RH (PERCENT) 67
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 18 HEAVY RAIN 19
RAIN 45 LIGHT RAIN 124
FREEZING RAIN 0 LT FREEZING RAIN 7
HEAVY SNOW 3 SNOW 11
LIGHT SNOW 32 FOG 143
FOG W/VIS <= 1/4 MILE 37 HAZE 54
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
&&
THE YEAR BEGAN WITH MILD WEATHER AND A GRADUALLY DIMINISHING SNOW
PACK. A FEW STORMS BROUGHT SNOW AND FREEZING RAIN IN MID JANUARY,
WITH THE BIGGEST STORM DROPPING 6 INCHES ON JANUARY 16. SOME COLDER
AIR MOVED IN BEHIND THESE STORMS WITH THE COLDEST TEMPERATURE OF 4
BELOW ZERO RECORDED ON JANUARY 21. THEN THE MILD WEATHER RETURNED A
FEW DAYS LATER ALONG WITH MORE THAN AN INCH OF RAIN ON JANUARY 25.
THE MILD WEATHER CONTINUED INTO FEBRUARY UNTIL A SNOWSTORM BROUGHT
MORE THAN 5 INCHES OF SNOW ON FEBRUARY 6. A FEW BRIEF PERIODS OF
COLD WEATHER WERE SEEN IN MID FEBRUARY, INCLUDING TWICE MORE
REACHING THE ZERO DEGREE MARK, HOWEVER THE COLD WEATHER NEVER LASTED
LONG. MILD WEATHER AND MORE HEAVY RAIN ON FEBRUARY 27 WASHED MUCH OF
THE SNOW COVER AWAY. EVEN WARMER WEATHER IN EARLY MARCH INCLUDING 61
DEGREES ON MARCH 3 ENSURED THAT THE LAST TRACE OF WINTER SNOW PACK
DISAPPEARED BY THE MORNING OF MARCH 5. JUST A FEW DAYS LATER THE
TEMPERATURE SOARED ALL THE WAY TO 70 DEGREES ON MARCH 9, THE
EARLIEST 70 DEGREE READING ON RECORD. ANOTHER SNOWSTORM DROPPED MORE
THAN 6 INCHES OF SNOW ON MARCH 25 AND 26, BUT WITH MILD WEATHER
RETURNING IT DIDN`T STICK AROUND LONG. RAIN A FEW DAYS LATER WASHED
IT ALL AWAY.
MORE FREQUENT STORMY WEATHER WAS OBSERVED IN THE FIRST PART OF
SPRING. A NEW STORM SYSTEM WOULD BRING RAIN OR WINTRY WEATHER JUST
ABOUT EVERY WEEK. NEARLY AN INCH OF RAIN AND SOME SNOWFLAKES FELL ON
MARCH 29 AND 30. A FEW DAYS LATER ANOTHER STORM BROUGHT MORE THAN
1.5 INCHES OF RAIN ON APRIL 2 AND 3. JUST ONE WEEK LATER RAIN
CHANGED TO A STICKY WET SNOW AS THE TEMPERATURE COOLED ON APRIL 9.
MORE THAN AN INCH OF PRECIPITATION FELL WITH 3 INCHES OF SNOW BEING
RECORDED. THIS ALSO BEGAN A SHIFT TOWARD COOLER WEATHER WITH THE
FREQUENT STORMS CONTINUING. APRIL 13 SAW MORE THAN AN INCH OF RAIN.
COOL WEATHER DOMINATED THE LAST HALF OF APRIL AND INTO MAY, ALTHOUGH
THE LAST OFFICIAL FREEZE WAS ON APRIL 23. THE LAST BIG RAIN STORM
WAS ON MAY 1 WITH NEARLY 1 INCH FALLING THAT DAY. A WEEK LATER ON
MAY 9 RAIN CHANGED TO SNOW AS THE TEMPERATURE COOLED. ALTHOUGH IT
DID NOT ACCUMULATE TO MEASURABLE DEPTH, IT WAS A RARE SIGHT TO SEE
SNOW THAT LATE IN THE SEASON AND MORE THAN 2 WEEKS AFTER THE LAST
FREEZE.
SUDDENLY IN MID MAY THE FREQUENT STORMY WEATHER SHUT OFF. THE
PERSISTENT TROUGH WHICH BROUGHT THE COOL AND STORMY WEATHER SHIFTED
TO THE EAST. INSTEAD, FREQUENT COOL, DRY AIR MASSES SPILLED DOWN OUT
OF CANADA. THE LAST SIGNIFICANT RAINFALL WAS ON MAY 15 WHEN NEARLY
HALF AN INCH FELL. BARELY ANY RAIN FELL AGAIN FOR MORE THAN A MONTH
CAUSING THE RAPID ONSET OF DROUGHT CONDITIONS IN THE AREA.
TEMPERATURES DURING THIS TIME WERE FREQUENTLY WARM DURING THE DAY
AND RATHER COOL AT NIGHT DUE TO THE DRY AIR MASSES WHICH DOMINATED
THE PERIOD. WHILE PORTLAND SAW A FEW DAYS IN THE 80S IN LATE MAY, IT
ACTUALLY DROPPED ALL THE WAY TO 37 ON JUNE 1. THE FIRST CONSISTENTLY
HOT STRETCH OF WEATHER CAME IN MID JUNE WHEN THE TEMPERATURE WARMED
TO NEAR 90 DEGREES FROM JUNE 18 THROUGH 20. THE WARMEST WAS 93 ON
JUNE 20. AS THE TEMPERATURE AND HUMIDITY BEGAN TO CLIMB TOWARD THE
END OF JUNE, FINALLY SOME DROUGHT RELIEF ARRIVED. FROM JUNE 28
THROUGH 30 MORE THAN 3 INCHES OF RAIN FELL AS A SLOW MOVING LOW
PRESSURE SYSTEM BROUGHT FREQUENT SHOWERS AND THUNDERSTORMS. UNTIL
THESE DROUGHT RELIEVING RAINS, PORTLAND WAS ENDURING ITS DRIEST
PERIOD ON RECORD FOR THIS TIME OF YEAR. SUCH CONSISTENTLY DRY
WEATHER WAS UNPRECEDENTED FOR THE SPRING WHICH IS TYPICALLY THE
RAINIEST TIME OF YEAR. THE TABLE BELOW LISTS THE LEAST PRECIPITATION
OBSERVED DURING THIS STRETCH OF TIME.
LEAST PRECIPITATION MAY 16 THROUGH JUN 27 (SINCE 1871)
RANK PRECIP YEAR
1 0.38 2020 <===
2 1.32 1899
3 1.48 1953
4 1.58 1941
5 1.60 1895
ALTHOUGH THE DROUGHT BUSTING RAINS ENDED, MORE FREQUENT SHOWERS AND
THUNDERSTORMS IN JULY KEPT THE DROUGHT FROM WORSENING, AT LEAST FOR
THE FIRST HALF OF THE MONTH. THE HIGH TEMPERATURE ON JULY 4 WAS ONLY
70 DEGREES, THE COOLEST INDEPENDENCE DAY SINCE 1998. LATER IN JULY
THE HEAT AND HUMIDITY BECAME MORE COMMON. WHILE THERE WERE NO
EXTREMELY HOT PERIODS, THE HUMID WEATHER OFTEN KEPT NIGHTTIME
TEMPERATURES MUCH WARMER THAN NORMAL. THE HOTTEST TEMPERATURES WERE
IN LATE JULY WHEN PORTLAND SAW 3 STRAIGHT DAYS ABOVE 90 DEGREES FOR
THE FIRST TIME SINCE 2011. THE NIGHTTIME LOWS WERE EVEN MORE EXTREME
AS PORTLAND DID NOT FALL BELOW 78 DEGREES ON JULY 27, THE WARMEST
LOW TEMPERATURE EVER RECORDED AT PORTLAND. THE SUMMER HEAT AND
HUMIDITY CONTINUED INTO AUGUST. THE ONLY BREAK FROM THE HEAT WAS ON
AUGUST 4 WHEN TROPICAL STORM ISAIAS MOVED THROUGH THE REGION.
ALTHOUGH PORTLAND DID NOT SEE MUCH RAIN FROM THIS STORM, THE WIND
GUSTED TO 44 MPH. THE HEAT AND HUMIDITY RETURNED QUICKLY. PORTLAND
SAW ANOTHER HEAT WAVE WHEN THE TEMPERATURE TOPPED 90 DEGREES FOR 3
STRAIGHT DAYS FROM AUGUST 11 THROUGH 13. A COLD FRONT ON AUGUST 15
BROUGHT A BREAK FROM THE HEAT. ALTHOUGH THERE WERE A FEW MORE HOT
DAYS IN LATE SUMMER AND EARLY FALL, THE PERSISTENT HEAT WAS OVER.
SUMMER 2020 WAS THE WARMEST ON RECORD AT PORTLAND, DRIVEN PRIMARILY
BY THE WARM NIGHTTIME TEMPERATURES. THE FOLLOWING TABLE LISTS THE
MOST WARM LOW TEMPERATURES AT PORTLAND.
WARM LOW TEMPERATURES (SINCE 1941)
DAYS 70+ DAYS 65+
RANK DAYS YEAR DAYS YEAR
1 9 2020 <=== 36 2020 <===
2 8 2018 28 2018
3 5 2001 23 1969
4 5 1988 22 2010
5 4 2013 22 1999
6 4 2011 22 1988
7 4 2002 20 1973
8 4 1973 19 2019
9 3 1991 18 2016
10 3 1969* 18 2005
* MOST RECENT OF MULTIPLE YEARS
MORE THAN AN INCH OF RAIN FELL ON AUGUST 29, BUT THIS WOULD BE THE
LAST SIGNIFICANT RAINFALL FOR A WHILE AS DROUGHT CONDITIONS
INTENSIFIED AGAIN FOR SEPTEMBER. A SERIES OF COLD FRONTS BROUGHT
DRY, CONTINENTAL AIR MASSES INTO THE REGION. THIS OFTEN BROUGHT WARM
DAYS AND OCCASIONALLY COOL NIGHTS. THE COOLEST TEMPERATURE WAS 34 ON
SEPTEMBER 21. FINALLY AFTER 4 WEEKS OF DRY WEATHER A SIGNIFICANT
STORM SYSTEM BROUGHT ALMOST HALF AN INCH OF RAIN ON SEPTEMBER 30
ALONG WITH 53 MPH WINDS. THIS BEGAN A SHIFT IN THE WEATHER PATTERN
WITH THE MORE FREQUENT STORMINESS RETURNING. FREQUENT FRONTAL
SYSTEMS BROUGHT A TOPSY TURVY TEMPERATURE PATTERN WITH OCCASIONAL
WARMTH REPLACED BY COLD. THE FIRST FREEZE OCCURRED ON OCTOBER 9. THE
NEXT SIGNIFICANT STORM BROUGHT NEARLY 2 INCHES OF RAIN ON OCTOBER
13, WITH ANOTHER INCH RECORDED ON OCTOBER 17. MORE CONSISTENT COLD
WEATHER AT THE END OF OCTOBER BROUGHT THE FIRST SNOWFLAKES ON
OCTOBER 30 AND A LOW OF 21 DEGREES ON HALLOWEEN. WHILE THE COOL
WEATHER PERSISTED INTO THE FIRST PART OF NOVEMBER, A RIDGE OF HIGH
BROUGHT ONE OF THE MOST INTENSE AND LONG LASTING LATE SEASON WARM
SPELLS ON RECORD. BEGINNING ON NOVEMBER 5TH, PORTLAND SAW THE
TEMPERATURE TOP 60 DEGREES ON 7 OUT OF 8 DAYS, INCLUDING 3 DAYS
TOPPING 70 DEGREES. THE HIGH OF 74 DEGREES ON NOVEMBER 7 TIED AS THE
WARMEST NOVEMBER TEMPERATURE ON RECORD. A COLD FRONT ON NOVEMBER 12
BROUGHT THIS UNUSUAL LATE SEASON WARMTH TO AN END AND BROUGHT THE
COLD WEATHER BACK INTO THE AREA. BY THE 18TH THE TEMPERATURE BARELY
MADE IT ABOVE FREEZING WITH A HIGH OF 33 DEGREES AND SNOWFLAKES
FALLING.
THE MORE FREQUENT STORMY WEATHER RETURNED IN MID NOVEMBER. MORE THAN
HALF AN INCH OF RAIN FELL ON NOVEMBER 15 AND 16, BUT WINDS GUSTING
TO 50 MPH BROUGHT DOWN TREES AND POWER LINES. THE NEXT STORM ON
NOVEMBER 23 BROUGHT MORE THAN 2 INCHES OF RAIN. THE FIRST MEASURABLE
SNOW FELL THE DAY BEFORE THANKSGIVING WITH ONLY 0.1 MEASURED.
ANOTHER POWERFUL STORM SYSTEM BROUGHT MORE THAN AN INCH OF RAIN AND
52 MPH WIND GUSTS ON NOVEMBER 30 INTO DECEMBER 1. AFTER A BRIEF
STRETCH OF MILD WEATHER, ANOTHER STORM BROUGHT A HEAVY WET SNOWFALL
ON DECEMBER 5 AND 6 ALONG WITH 49 MPH WINDS. WHILE THE SNOW
ACCUMULATED TO A LITTLE MORE THAN AN INCH, MORE THAN 2 INCHES OF
LIQUID EQUIVALENT PRECIPITATION WAS MEASURED. COOL WEATHER AFTER THE
STORM KEPT THE SNOW AROUND FOR A WHILE. A LONGER STRETCH OF COLD
WEATHER WAS OBSERVED IN MID DECEMBER WHEN THE TEMPERATURE DID NOT
RISE ABOVE FREEZING FOR 7 STRAIGHT DAYS. A MAJOR WINTER STORM
BROUGHT NEARLY 18 INCHES OF SNOW TO PORTLAND IN A LITTLE MORE THAN
12 HOURS ON DECEMBER 17. THE TEMPERATURE BOTTOMED OUT AT 3 DEGREES A
FEW DAYS LATER ON DECEMBER 19. WARMER WEATHER RETURNED JUST BEFORE
CHRISTMAS AND BY CHRISTMAS MORNING ANOTHER SIGNIFICANT RAIN STORM
HAD ARRIVED. MORE THAN AN INCH OF RAIN FELL ALONG WITH 46 MPH WINDS
ON CHRISTMAS DAY, WASHING AWAY ALL OF THE EARLIER SNOWFALL. MILD
WEATHER CONTINUED THROUGH THE END OF THE YEAR.
THE AVERAGE TEMPERATURE FOR THE YEAR WAS 49.4 DEGREES WHICH WAS 2.9
DEGREES ABOVE NORMAL AND THE WARMEST YEAR ON RECORD AT THE PORTLAND
JETPORT. UNTIL THIS YEAR, THE WARMEST YEAR WAS 49.2 DEGREES IN 2012
AND 2010. THE COOLEST YEAR WAS 43.3 DEGREES IN 1962. THE FOLLOWING
TABLE LISTS THE AVERAGE TEMPERATURES FOR EACH MONTH OF 2020
INCLUDING DEPARTURES FROM NORMAL.
AVERAGE TEMPERATURES BY MONTH IN 2020
MONTH MAXIMUM MINIMUM AVERAGE NOTES
JANUARY 38.0 (+6.8) 21.7 (+8.3) 29.8 (+7.5) 4TH WARMEST
FEBRUARY 38.3 (+3.7) 21.4 (+5.0) 29.8 (+4.3) 7TH WARMEST
MARCH 48.0 (+5.9) 29.9 (+5.0) 39.0 (+5.5) 4TH WARMEST
APRIL 50.4 (-2.9) 34.5 (-0.2) 42.5 (-1.5)
MAY 64.9 (+1.4) 43.9 (-0.3) 54.4 (+0.5)
JUNE 76.1 (+2.9) 45.3 (+2.7) 66.2 (+2.8) 3RD WARMEST
JULY 81.8 (+3.0) 65.6 (+6.2) 73.7 (+4.6) ALL TIME WARMEST
AUGUST 81.8 (+4.1) 61.3 (+3.1) 71.6 (+3.6) 3RD WARMEST
SEPTEMBER 73.3 (+3.3) 53.4 (+3.1) 63.4 (+3.3) 7TH WARMEST
OCTOBER 58.5 (-0.2) 40.5 (+1.6) 49.5 (+0.7)
NOVEMBER 52.1 (+4.1) 32.1 (+1.2) 42.1 (+2.7) 8TH WARMEST
DECEMBER 38.9 (+1.6) 23.6 (+3.2) 31.2 (+2.4)
ANNUAL 58.5 (+2.7) 40.3 (+3.1) 49.4 (+2.9) ALL TIME WARMEST
THE AVERAGE TEMPERATURE OF 49.4 WAS THE WARMEST ON RECORD FOR
PORTLAND. THE FOLLOWING TABLE LISTS THE WARMEST AVERAGE ANNUAL
TEMPERATURES AT PORTLAND.
WARMEST ANNUAL AVERAGE TEMPERATURE (SINCE 1941).
RANK AVE YEAR
1 49.4 2020 <===
2 49.2 2012
49.2 2010
4 48.5 2006
5 48.4 2016
6 48.3 1998
7 48.1 1990
8 48.0 1999
9 47.9 1991
10 47.8 2011
THE GROWING SEASON, AS DEFINED AS THE LONGEST CONSECUTIVE DAYS ABOVE
FREEZING, LASTED FOR 169 DAYS IN 2020 FROM APRIL 23 THROUGH OCTOBER
9. THIS IS 10 DAYS LONGER THAN THE NORMAL OF 159 DAYS. THE LONGEST
GROWING SEASON WAS 197 DAYS IN 2014. THE SHORTEST WAS ONLY 110 DAYS
IN 1961. THE LAST SPRING FREEZE ON APRIL 23 THIS YEAR WAS ONE OF THE
EARLIEST ON RECORD. THE FOLLOWING TABLE LISTS THE EARLIEST LAST
SPRING FREEZE DATES AT PORTLAND.
DATE OF LAST SPRING FREEZE (SINCE 1941)...
RANK DATE YEAR
1 APR 14 1983
2 APR 15 1973
APR 15 1976
4 APR 19 1990
5 APR 20 2014
APR 20 1991
APR 20 1970
8 APR 22 1953
9 APR 23 2020 <===
APR 23 2018
APR 23 2011
APR 23 1994
A TOTAL OF 41.48 INCHES OF PRECIPITATION FELL WHICH WAS 5.77 INCHES
BELOW NORMAL AND THE DRIEST YEAR SINCE 2004. THE HEAVIEST
PRECIPITATION FELL AT THE END OF JUNE WHEN PERSISTENT SHOWERS AND
THUNDERSTORMS DROPPED 3.03 INCHES FROM JUNE 28 THROUGH 30. PORTLAND
SAW 6 CONSECUTIVE MONTHS WITH BELOW NORMAL PRECIPITATION FROM LATE
MAY THROUGH EARLY FALL LEADING TO DROUGHT CONDITIONS. THE WETTEST
MONTH WAS DECEMBER WHEN MULTIPLE STORM SYSTEMS BROUGHT HEAVY RAIN
AND SNOW. THE DRIEST YEAR ON RECORD WAS IN 1941 WHEN ONLY 25.27
INCHES OF PRECIPITATION WAS RECORDED. THE WETTEST WAS IN 2005 WITH
66.45 INCHES MEASURED. THE FOLLOWING TABLE LISTS THE PRECIPITATION
AND SNOWFALL AMOUNTS FOR EACH MONTH OF 2020 INCLUDING DEPARTURES
FROM NORMAL.
MONTHLY PRECIPITATION AND SNOWFALL TOTALS FOR 2020
MONTH PRECIPITATION SNOWFALL NOTES
JANUARY 3.53 (+0.15) 14.7 (-5.6)
FEBRUARY 3.54 (+0.29) 9.4 (-2.7)
MARCH 3.44 (-0.80) 6.1 (-6.6)
APRIL 5.21 (+0.89) 3.0 (+0.2)
MAY 2.14 (-1.87) T
JUNE 3.39 (-0.40) 0
JULY 2.39 (-1.22) 0
AUGUST 2.18 (-0.96) 0
SEPTEMBER 0.68 (-3.01) 0 8TH DRIEST
OCTOBER 4.08 (-0.79) T
NOVEMBER 5.68 (+0.75) 0.1 (-1.8)
DECEMBER 5.22 (+1.20) 20.0 (+6.8)
ANNUAL 41.48 (-5.77) 53.3 (-8.6)
THERE WERE 14 DAYS THAT RECORDED AT LEAST 1.00 INCH OF
PRECIPITATION, 2.5 DAYS MORE THAN NORMAL. THE FOLLOWING TABLE LISTS
THE DAYS WHICH RECEIVED AT LEAST 1.00 INCH OF PRECIPITATION IN 2020.
DAYS WITH AT LEAST 1.00 INCH OF PRECIPITATION IN 2020
DAY PRECIPITATION
JANUARY 25 1.37
FEBRUARY 27 1.45
APRIL 2 1.18
APRIL 9 1.33
APRIL 13 1.22
JUNE 29 2.51
AUGUST 29 1.28
OCTOBER 13 1.96
OCTOBER 17 1.08
NOVEMBER 23 2.32
NOVEMBER 30 1.46
DECEMBER 5 1.99
DECEMBER 17 1.40
DECEMBER 25 1.05
SNOWFALL STATISTICS ARE NORMALLY LISTED BY SEASON RATHER THAN BY
CALENDAR YEAR. HOWEVER, 2020 SAW 53.3 INCHES OF SNOWFALL WHICH WAS
8.6 INCHES BELOW NORMAL. THIS WAS THE FIRST CALENDAR YEAR WITH BELOW
NORMAL SNOWFALL SINCE 2010. THE HEAVIEST SNOWSTORM WAS ON DECEMBER
17 WHEN 17.6 INCHES WAS MEASURED IN A LITTLE MORE THAN 12 HOURS.
THERE WERE 11 DAYS WHICH RECORDED AN INCH OR MORE OF SNOWFALL
INCLUDING 2 DAYS WITH AT LEAST 6 INCHES. THE FOLLOWING TABLE LISTS
THE DAYS WHICH RECEIVED 6 INCHES OR MORE OF SNOWFALL IN 2020.
DAYS WITH AT LEAST 6 INCHES OF SNOWFALL IN 2020
DAYS SNOWFALL
JANUARY 16 6.0
DECEMBER 17 17.6
THERE WAS A CONSISTENT SNOW DEPTH FROM JANUARY 1 THROUGH THE END OF
FEBRUARY, ALTHOUGH THE DEPTH WAS FREQUENTLY REDUCED BY MILD
TEMPERATURES AND RAINFALL. THE PEAK DEPTH WAS 10 INCHES RECORDED AT
THE START OF THE YEAR AND AGAIN IN MID JANUARY. THE LAST TRACE OF
THE WINTER SNOW PACK MELTED BY THE MORNING OF MARCH 5, ALTHOUGH
THERE WERE A FEW LATE SEASON SNOWFALLS AFTER THIS POINT. SNOW
RETURNED IN EARLY DECEMBER BEFORE MELTING A WEEK LATER. A MAJOR
SNOWSTORM ON DECEMBER 17 LEFT 12 INCHES ON THE GROUND ON THE MORNING
OF THE 18TH, THE HIGHEST DEPTH RECORDED IN 2020. HOWEVER, WARM
TEMPERATURES AND RAIN BROUGHT THIS DOWN TO JUST A TRACE BY CHRISTMAS
MORNING WITH NOTHING LEFT AT THE END OF THE YEAR.
THE FOLLOWING DAILY RECORDS WERE SET OR TIED IN 2020...
DATE RECORD PREVIOUS
JAN 11 63 - WARMEST HIGH TEMPERATURE 54 IN 2017
JAN 11 51 - WARMEST AVERAGE TEMPERATURE 46 IN 1983
JAN 12 52 - WARMEST HIGH TEMPERATURE 51 IN 2014, 1980
JAN 25 36 - WARMEST LOW TEMPERATURE 36 IN 2010 (TIED)
MAR 3 61 - WARMEST HIGH TEMPERATURE 55 IN 1961
MAR 3 47 - WARMEST AVERAGE TEMPERATURE 45 IN 2002
MAR 4 36 - WARMEST LOW TEMPERATURE 35 IN 1974
MAR 9 70 - WARMEST HIGH TEMPERATURE 66 IN 2016
MAR 9 54 - WARMEST AVERAGE TEMPERATURE 53 IN 2016
MAR 20 37 - WARMEST LOW TEMPERATURE 37 IN 2012 & OTHERS (TIED)
APR 3 43 - WARMEST LOW TEMPERATURE 42 IN 2000
APR 3 4 - SMALLEST TEMPERATURE RANGE 4 IN 2004 & OTHERS (TIED)
APR 9 1.33 - GREATEST PRECIPITATION 1.28 IN 1916
APR 27 42 - COOLEST HIGH TEMPERATURE 42 IN 1955 (TIED)
APR 27 3 - SMALLEST TEMPERATURE RANGE 3 IN 1973 & 1955 (TIED)
MAY 28 74 - WARMEST AVERAGE TEMPERATURE 72 IN 2015, 1959, 1944
JUN 5 65 - WARMEST LOW TEMPERATURE 62 IN 1960
JUN 5 75 - WARMEST AVERAGE TEMPERATURE 73 IN 1949
JUN 6 63 - WARMEST LOW TEMPERATURE 60 IN 1963
JUN 20 93 - WARMEST HIGH TEMPERATURE 93 IN 2012 & OTHERS (TIED)
JUN 20 69 - WARMEST LOW TEMPERATURE 67 IN 1941
JUN 20 81 - WARMEST AVERAGE TEMPERATURE 80 IN 1941
JUN 29 4 - SMALLEST TEMPERATURE RANGE 6 IN 1974 & 1973
JUL 11 68 - WARMEST LOW TEMPERATURE 67 IN 1955
JUL 12 71 - WARMEST LOW TEMPERATURE 70 IN 2011, 1943
JUL 13 67 - WARMEST LOW TEMPERATURE 67 IN 2010, 1943 (TIED)
JUL 17 8 - SMALLEST TEMPERATURE RANGE 9 IN 1995, 1949
JUL 20 73 - WARMEST LOW TEMPERATURE 71 IN 2019
JUL 20 84 - WARMEST AVERAGE TEMPERATURE 83 IN 1991, 1949
JUL 27 78 - WARMEST LOW TEMPERATURE 69 IN 1989, 1979
JUL 27 86 - WARMEST AVERAGE TEMPERATURE 80 IN 1989
JUL 28 73 - WARMEST LOW TEMPERATURE 69 IN 2006 & OTHERS
JUL 28 83 - WARMEST AVERAGE TEMPERATURE 82 IN 1949
JUL 30 69 - WARMEST LOW TEMPERATURE 67 IN 2011 & OTHERS
AUG 3 91 - WARMEST HIGH TEMPERATURE 91 IN 2002, 1990 (TIED)
AUG 3 70 - WARMEST LOW TEMPERATURE 70 IN 2001, 1943 (TIED)
AUG 3 81 - WARMEST AVERAGE TEMPERATURE 79 IN 2001
AUG 12 72 - WARMEST LOW TEMPERATURE 72 IN 1988 (TIED)
AUG 24 66 - WARMEST LOW TEMPERATURE 66 IN 2015, 2009 (TIED)
SEP 10 66 - WARMEST LOW TEMPERATURE 66 IN 1999 (TIED)
SEP 28 65 - WARMEST LOW TEMPERATURE 62 IN 2008
SEP 28 68 - WARMEST AVERAGE TEMPERATURE 67 IN 2007, 1959
SEP 29 63 - WARMEST LOW TEMPERATURE 63 IN 2015 (TIED)
OCT 13 1.96 - GREATEST PRECIPITATION 1.69 IN 1990
OCT 30 38 - COOLEST HIGH TEMPERATURE 40 IN 1966
OCT 31 33 - COOLEST AVERAGE TEMPERATURE 33 IN 1966 (TIED)
NOV 6 71 - WARMEST HIGH TEMPERATURE 69 IN 2015
NOV 6 61 - WARMEST AVERAGE TEMPERATURE 60 IN 2015
NOV 7 74 - WARMEST HIGH TEMPERATURE 65 IN 2015
NOV 7 62 - WARMEST AVERAGE TEMPERATURE 58 IN 2008
NOV 10 72 - WARMEST HIGH TEMPERATURE 64 IN 2009
NOV 10 36 - GREATEST TEMPERATURE RANGE 32 IN 1995, 1949
NOV 11 69 - WARMEST HIGH TEMPERATURE 65 IN 2002
NOV 11 53 - WARMEST LOW TEMPERATURE 52 IN 2002
NOV 11 61 - WARMEST AVERAGE TEMPERATURE 59 IN 2002
NOV 12 65 - WARMEST HIGH TEMPERATURE 65 IN 1982 (TIED)
NOV 18 25 - COOLEST AVERAGE TEMPERATURE 25 IN 1959 (TIED)
NOV 23 2.32 - GREATEST PRECIPITATION 2.08 IN 1874
DEC 1 44 - WARMEST LOW TEMPERATURE 43 IN 2010
DEC 1 52 - WARMEST AVERAGE TEMPERATURE 52 IN 2001 (TIED)
DEC 5 1.99 - GREATEST PRECIPITATION 1.42 IN 1900
DEC 8 5 - SMALLEST TEMPERATURE RANGE 5 IN 2012 (TIED)
DEC 25 47 - WARMEST LOW TEMPERATURE 38 IN 2014 AND OTHERS
DEC 25 51 - WARMEST AVERAGE TEMPERATURE 49 IN 2018
$$
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