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Climatological Report (Annual)
Issued by NWS Portland, ME
Issued by NWS Portland, ME
000
CXUS51 KGYX 060415 CCA
CLACON
PWMCLACON 000
TTAA00 GYX 060102
CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAY ME
802 PM EST WED JAN 05 2022
...................................
...THE CONCORD NH CLIMATE SUMMARY FOR THE YEAR OF 2021...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1868 TO 2022
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
................................................................
TEMPERATURE (F)
RECORD
HIGH 102 07/03/1966
07/04/1911
LOW -37 02/16/1943
HIGHEST 97 06/28 96 1 96 07/27
07/19
08/11
LOWEST -3 01/31 -15 12 -8 12/19
02/10
AVG. MAXIMUM 59.9 58.3 1.6 60.4
AVG. MINIMUM 38.3 36.1 2.2 37.2
MEAN 49.1 47.2 1.9 48.8
DAYS MAX >= 90 17 13.7 3.3 25
DAYS MAX <= 32 36 43.5 -7.5 25
DAYS MIN <= 32 148 164.8 -16.8 164
DAYS MIN <= 0 2 12.8 -10.8 5
PRECIPITATION (INCHES)
RECORD
MAXIMUM 57.99 2008
MINIMUM 24.17 1965
TOTALS 44.02 41.95 2.07 33.28
DAILY AVG. 0.12 0.11 0.01 0.09
DAYS >= .01 138 132.8 5.2 111
DAYS >= .10 84 79.6 4.4 57
DAYS >= .50 30 28.0 2.0 27
DAYS >= 1.00 10 9.5 0.5 6
GREATEST
24 HR. TOTAL 2.66 07/18 TO 07/19
SNOWFALL (INCHES)
RECORDS
TOTAL 128.4 1956
TOTALS 35.1 67.7 -32.6 59.9
SINCE 7/1 8.1 17.6 -9.5 32.0
SNOWDEPTH AVG. 1
DAYS >= TRACE 52 30.3 21.7 44
DAYS >= 1.0 12 16.5 -4.5 10
GREATEST
SNOW DEPTH 13 02/23
24 HR TOTAL 6.9 02/01 TO 02/02
DEGREE DAYS
HEATING TOTAL 6322 6980 -658 6528
SINCE 7/1 2246 2610 -364 2442
COOLING TOTAL 658 528 130 726
FREEZE DATES
RECORD
EARLIEST 08/29/1986
LATEST 06/26/1979
EARLIEST 10/24
LATEST 04/27
................................................................
WIND (MPH)
AVERAGE WIND SPEED 5.8
HIGHEST WIND SPEED/DIRECTION 41/300 DATE 03/02
HIGHEST GUST SPEED/DIRECTION 59/290 DATE 03/02
SKY COVER
AVERAGE SKY COVER 0.46
AVERAGE RH (PERCENT) 68
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 18 HEAVY RAIN 31
RAIN 63 LIGHT RAIN 140
FREEZING RAIN 5 LT FREEZING RAIN 7
HEAVY SNOW 1 SNOW 7
LIGHT SNOW 47 FOG 174
FOG W/VIS <= 1/4 MILE 44 HAZE 18
- 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 SHALLOW SNOWPACK. MILD
WEATHER PERSISTED INTO THE MIDDLE OF JANUARY WITH THE JANUARY THAW
ARRIVING ON THE 16TH WHEN THE HIGH REACHED 47 DEGREES AND 1.13
INCHES OF RAIN FELL. COLDER WEATHER ARRIVED THE LAST WEEK OF JANUARY
AND PERSISTED THROUGH MUCH OF FEBRUARY. THE COLDEST TEMPERATURE OF
THE YEAR WAS 3 DEGREES BELOW ZERO ON JANUARY 31ST AND AGAIN ON
FEBRUARY 10TH. THE BIGGEST SNOWFALL OF THE YEAR CAME ON FEBRUARY 1ST
AND 2ND WHEN AN AREA OF LOW PRESSURE TRACKED UP THE EAST COAST
BRINGING 6.9 INCHES OF SNOW. FREQUENT SNOWS THROUGH FEBRUARY HELPED
BUILD THE SNOWPACK UNTIL IT PEAKED AT 13 INCHES ON FEBRUARY 23RD.
MILD WEATHER FOLLOWED WITH THE LAST MEASURABLE SNOWFALL OCCURRING ON
FEBRUARY 27TH TYING WITH 2010 AS THE EARLIEST LAST MEASURABLE
SNOWFALL. MARCH FEATURED LARGE TEMPERATURE SWINGS WITH THE LAST OF
THE WINTER SNOWPACK MELTING BY MARCH 20TH. THE FIRST 70 DEGREE DAY
OCCURRED ON MARCH 26TH WHEN THE HIGH TEMPERATURE CLIMBED TO 74
DEGREES.
MILD WEATHER CONTINUED THROUGH SPRING WITH BOTH APRIL AND MAY HAVING
ABOVE NORMAL TEMPERATURES. THE LAST FREEZE OCCURRED ON APRIL 27TH
ALMOST TWO WEEKS EARLIER THAN THE NORMAL LAST FREEZE OF MAY 8TH. THE
COMBINATION OF ABOVE NORMAL TEMPERATURES AND BELOW NORMAL
PRECIPITATION THROUGH THE END OF WINTER INTO SPRING ALONG WITH A
SNOWLESS GROUND LED TO LITTLE IN THE WAY OF THE TRADITIONAL MUD
SEASON. FOR THE SECOND YEAR IN A ROW THERE WAS A DRY START TO THE
GROWING SEASON WITH A RESURGENCE IN DROUGHT CONDITIONS. AFTER A HIGH
OF 92 DEGREES ON MAY 26TH, THE WARM DRY SPRING WAS INTERRUPTED BY
COLD AND WET WEATHER OVER MEMORIAL DAY WEEKEND.
TEMPERATURES REBOUNDED QUICKLY GOING INTO JUNE WITH FOUR STRAIGHT
DAYS OF TEMPERATURES IN LOW 90S STARTING JUNE 5TH. THE HEAT BACKED
OFF SOME GOING INTO THE MIDDLE OF JUNE, BUT CAME BACK AT THE END OF
THE MONTH WITH THE LAST FOUR DAYS CLIMBING INTO THE 90S. THIS HEAT
WAVE WOULD MARK THE HOTTEST WEATHER OF THE YEAR WITH HOTTEST DAY IN
2021 BEING JUNE 28TH WITH HIGH OF 97 DEGREES. THIS HOT AND DRY
PATTERN LED TO EXPANDING AND INTENSIFYING DROUGHT CONDITIONS. THE
HOT AND DRY WEATHER TOOK QUITE A TURN IN THE OTHER DIRECTION GOING
INTO JULY. THE FOURTH OF JULY WEEKEND WAS COOL AND RAINY WITH OVER
THREE INCHES OF RAIN FALLING BETWEEN JULY 1ST TO JULY 4TH. THE COOL
AND RAINY HOLIDAY WEEKEND WAS FOLLOWED BY THE REMNANTS OF TROPICAL
STORM ELSA BRINGING 2.26 INCHES OF RAIN OVER JULY 8TH AND 9TH.
SEVERAL DAYS LATER ON JULY 17TH TO 18TH A STALLED FRONTAL BOUNDARY
AND CONVECTION BROUGHT THE GREATEST 24 HOUR RAINFALL OF THE YEAR
WITH 2.66 INCHES. VERY WET AND COOL WEATHER WOULD END UP BEING THE
THEME FOR JULY BRINGING AN END TO DROUGHT CONDITIONS. THE WEATHER
PATTERN THAT BROUGHT COOL AND WET CONDITIONS IN JULY BROKE DOWN
GOING INTO AUGUST. THERE WERE TWO PERIODS OF SUMMER HEAT WITH
MULTIPLE DAYS INTO THE UPPER 80S TO 90 DEGREES ALONG WITH RELATIVELY
DRY WEATHER THROUGH THE FIRST TWO WEEKS OF AUGUST. THE DRY STRETCH
OF WEATHER WAS INTERRUPTED BY THE REMNANTS OF TROPICAL STORM FRED
BRINGING OVER AN INCH OF RAIN ON AUGUST 19TH INTO THE 20TH.
THE WEATHER TURNED MORE ACTIVE INTO SEPTEMBER WITH THE THEME FOR THE
FALL SEASON BEING WARM AND WET CONDITIONS. THE REMNANTS OF HURRICANE
IDA BROUGHT NEARLY TWO INCHES OF RAIN ON SEPTEMBER 1ST AND 2ND,
CONTINUING THE TREND OF POST TROPICAL SYSTEMS BRINGING HEAVY BOUTS
OF RAIN TO THE AREA. MILD AND RELATIVELY DRY WEATHER DOMINATED THE
FIRST HALF OF OCTOBER WITH THE FIRST FREEZE OF THE FALL NOT ARRIVING
UNTIL OCTOBER 24TH, MAKING THIS THE SECOND LATEST FREEZE ON RECORD.
GOING INTO THE END OF OCTOBER THE PATTERN CHANGED FAVORING
NOR`EASTERS. A STRONG NOR`EASTER BROUGHT RAIN AND WINDS ON OCTOBER
27TH FOLLOWED BY ANOTHER SYSTEM BRINGING 2.25 INCHES OF RAINFALL
OVER HALLOWEEN WEEKEND. MILD CONDITIONS CONTINUED INTO NOVEMBER WITH
THE TEMPERATURES CLIMBING TO 60 DEGREES OR GREATER SEVERAL TIMES
DURING THE FIRST HALF OF THE MONTH AND A HIGH OF 70 DEGREES ON
NOVEMBER 18TH. COOLER WEATHER FINALLY ARRIVED AROUND THANKSGIVING
ALONG WITH THE FIRST MEASURABLE SNOWFALL OF 0.4 INCHES ON NOVEMBER
26TH. THE FIRST SIGNIFICANT SNOW OF THE SEASON WAS ON DECEMBER 18TH
AND 19TH WHEN 4.2 INCHES FELL. THIS SNOW STUCK AROUND THROUGH
CHRISTMAS WITH A WINTRY MIX ON CHRISTMAS DAY ENDING AS SNOW FOLLOWED
BY MILD WEATHER THROUGH NEW YEAR`S EVE.
THE AVERAGE TEMPERATURE FOR THE YEAR WAS 49.1 DEGREES, WHICH WAS 1.9
DEGREES ABOVE NORMAL AND TIES FOR THE THIRD WARMEST YEAR ON RECORD.
THE WARMEST YEAR WAS 49.3 DEGREES IN 2016. THE COLDEST WAS 1918 AT
41.1 DEGREES. THE FOLLOWING TABLE LISTS THE AVERAGE TEMPERATURES FOR
EACH MONTH OF 2021 INCLUDING DEPARTURES FROM NORMAL.
AVERAGE TEMPERATURES BY MONTH IN 2021
MONTH MAXIMUM MINIMUM AVERAGE NOTES
JANUARY 34.4 (+3.6) 18.3 (+7.9) 26.3 (+5.7)
FEBRUARY 32.5 (-2.4) 14.4 (+0.6) 23.4 (-0.9)
MARCH 48.9 (+5.1) 24.4 (+1.9) 36.6 (+3.5)
APRIL 58.9 (+1.5) 34.0 (+1.3) 46.5 (+1.4)
MAY 70.5 (+1.2) 44.3 (+0.2) 57.4 (+0.7)
JUNE 82.7 (+4.9) 56.3 (+2.6) 69.5 (+3.7) 3RD WARMEST
JULY 78.1 (-4.9) 59.7 (+0.5) 68.9 (-2.2)
AUGUST 83.2 (+1.5) 62.0 (+4.8) 72.6 (+3.1) 5TH WARMEST
SEPTEMBER 74.5 (+0.8) 51.9 (+2.9) 63.2 (+1.8)
OCTOBER 64.8 (+3.9) 44.7 (+6.9) 54.8 (+5.5) 6TH WARMEST
NOVEMBER 49.9 (+1.5) 26.8 (-1.9) 38.3 (-0.3)
DECEMBER 39.9 (+2.8) 23.0 (+3.5) 31.5 (+3.2)
ANNUAL 59.9 (+1.6) 38.3 (+2.2) 49.1 (+1.9) 3RD WARMEST
THE AVERAGE ANNUAL TEMPERATURE OF 49.1 DEGREES WAS THE 3RD WARMEST
YEAR ON RECORD FOR CONCORD. THE FOLLOWING TABLE LISTS THE WARMEST
AVERAGE ANNUAL TEMPERATURES AT CONCORD.
WARMEST ANNUAL AVERAGE TEMPERATURE (SINCE 1868)...
RANK AVE YEAR
1 49.3 2016
2 49.2 1878
3 49.1 2021 <===
49.1 2012
49.1 1877
6 48.8 2020
48.8 1880
8 48.7 2010
48.7 1998
10 48.6 1870
*NOTE THAT THE NWS BEGAN USING NEW 30-YEAR NORMAL VALUES IN MAY OF
2021. THE DEPARTURE FROM NORMAL LISTED HERE IS THE DEPARTURE FROM
THE NORMAL USED AT THE TIME. JANUARY THROUGH APRIL USES THE OLD
NORMAL VALUES, WHILE THE REMAINDER OF THE YEAR AND THE ANNUAL VALUES
ARE REPORTED RELATIVE TO THE NEW 1991-2020 NORMALS.
THE GROWING SEASON, AS DEFINED AS THE LONGEST CONSECUTIVE DAYS ABOVE
FREEZING, LASTED FOR 180 DAYS IN 2021 FROM APRIL 27 THROUGH OCTOBER
24. THIS IS 34 DAYS LONGER THAN THE NORMAL OF 146 DAYS AND THE
LONGEST GROWING SEASON ON RECORD. THE PREVIOUS LONGEST GROWING
SEASON WAS 172 DAYS IN 2018. THE SHORTEST WAS ONLY 86 DAYS IN 1979.
A TOTAL OF 44.02 INCHES OF PRECIPITATION FELL WHICH WAS 2.07 INCHES
ABOVE NORMAL. THE HEAVIEST PRECIPITATION FELL JULY 18TH AND 19TH
WHEN A STALLED FRONTAL BOUNDARY AND CONVECTION BROUGHT 2.66 INCHES
OF RAIN. JULY 2021 WOULD END UP BEING THE WETTEST JULY ON RECORD
WITH 13.04 INCHES OF RAIN COMING PRIMARILY FROM REMNANT TROPICAL
SYSTEMS AND SUMMER CONVECTION. THE DRIEST YEAR ON RECORD WAS IN 1965
WHEN ONLY 24.17 INCHES OF PRECIPITATION WAS RECORDED. THE WETTEST
WAS IN 2008 WITH 57.97 INCHES. THE FOLLOWING TABLE LISTS THE
PRECIPITATION AND SNOWFALL AMOUNTS FOR EACH MONTH OF 2021 INCLUDING
DEPARTURES FROM NORMAL.
MONTHLY PRECIPITATION AND SNOWFALL TOTALS FOR 2021
MONTH PRECIPITATION SNOWFALL NOTES
JANUARY 1.89 (-0.81) 4.7 (-13.4) 8TH LEAST SNOWY
FEBRUARY 2.72 (+0.10) 22.3 (+10.0)
MARCH 1.45 (-1.82) T (-11.1) 2ND LEAST SNOWY
APRIL 2.86 (-0.55) T (-2.8)
MAY 2.99 (-0.48) 0
JUNE 1.29 (-2.48) 0
JULY 13.04 (+9.42) 0 WETTEST
AUGUST 3.36 (-0.27) 0
SEPTEMBER 4.46 (+0.83) 0
OCTOBER 4.17 (-0.26) 0 (-0.8)
NOVEMBER 1.80 (-1.64) 0.4 (-2.1)
DECEMBER 3.99 (+0.29) 7.7 (-6.6)
ANNUAL 44.02 (+2.07) 35.1 (-32.6)
*NOTE THAT THE NWS BEGAN USING NEW 30-YEAR NORMAL VALUES IN MAY OF
2021. THE DEPARTURE FROM NORMAL LISTED HERE IS THE DEPARTURE FROM
THE NORMAL USED AT THE TIME. JANUARY THROUGH APRIL USES THE OLD
NORMAL VALUES, WHILE THE REMAINDER OF THE YEAR AND THE ANNUAL VALUES
ARE REPORTED RELATIVE TO THE NEW 1991-2020 NORMALS.
DAYS WITH AT LEAST 1.00 INCH OF PRECIPITATION IN 2021
DAY PRECIPITATION
JANUARY 16 1.13
JULY 2 1.57
JULY 9 1.67
JULY 12 1.19
JULY 18 1.84
JULY 29 1.78
SEPTEMBER 2 1.09
OCTOBER 30 1.11
OCTOBER 31 1.14
DECEMBER 11 1.00
DAYS WITH AT LEAST 6 INCHES OF SNOWFALL IN 2021
DAYS SNOWFALL
NONE
THE FOLLOWING DAILY RECORDS WERE SET OR TIED IN 2021...
DATE RECORD PREVIOUS
JAN 16 1.13 - GREATEST PRECIPITATION 0.97 IN 1885
MAR 11 68 - WARMEST HIGH TEMPERATURE 65 IN 1977, 1871
MAR 25 46 - WARMEST LOW TEMPERATURE 46 IN 1979 (TIED)
MAR 26 74 - WARMEST HIGH TEMPERATURE 74 IN 1949, 1945 (TIED)
MAR 26 46 - WARMEST LOW TEMPERATURE 46 IN 1953 (TIED)
JUN 8 69 - WARMEST LOW TEMPERATURE 67 IN 1871
JUN 29 74 - WARMEST LOW TEMPERATURE 72 IN 1880
JUL 3 59 - COOLEST HIGH TEMPERATURE 61 IN 1914
JUL 18 1.84 - GREATEST PRECIPITATION 1.45 IN 1949
AUG 12 72 - WARMEST LOW TEMPERATURE 72 IN 1891, 1872 (TIED)
AUG 23 69 - WARMEST LOW TEMPERATURE 69 IN 2009, 1879 (TIED)
AUG 24 68 - WARMEST LOW TEMPERATURE 68 IN 2015 (TIED)
SEP 23 67 - WARMEST LOW TEMPERATURE 67 IN 1970 AND 1909 (TIED)
$$
SCHROETER
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- Page last modified: Sep 19th, 2023 19:10 UTC