Climatological Report (Annual)
Issued by NWS Portland, ME
Issued by NWS Portland, ME
653
CXUS51 KGYX 022226
CLAPWM
PWMCLAPWM 000
TTAA00 GYX 021944
CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAY ME
244 PM EST TUE JAN 02 2024
...................................
...THE PORTLAND ME CLIMATE SUMMARY FOR THE YEAR OF 2023...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1941 TO 2023 (FOR TEMPERATURES)
CLIMATE RECORD PERIOD: 1871 TO 2023 (FOR PRECIPITATION)
CLIMATE RECORD PERIOD: 1882 TO 2023 (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 89 05/28 93 -4 96 08/07
07/12
LOWEST -14 02/04 -10 -4 -7 01/31
AVG. MAXIMUM 57.1 56.4 0.7 57.6
AVG. MINIMUM 40.4 38.6 1.8 38.8
MEAN 48.8 47.5 1.3 48.2
DAYS MAX >= 90 0 5.1 -5.1 7
DAYS MAX <= 32 21 40.7 -19.7 39
DAYS MIN <= 32 136 144.1 -8.1 130
DAYS MIN <= 0 3 6.7 -3.7 7
PRECIPITATION (INCHES)
RECORD
MAXIMUM 66.45 2005
MINIMUM 25.27 1941
TOTALS 56.67 48.12 8.55 46.66
DAILY AVG. 0.16 0.13 0.03 0.13
DAYS >= .01 141 131.4 9.6 118
DAYS >= .10 85 80.0 5.0 70
DAYS >= .50 39 30.9 8.1 30
DAYS >= 1.00 18 11.9 6.1 16
GREATEST
24 HR. TOTAL 3.24 09/18 TO 09/19
SNOWFALL (INCHES)
RECORDS
TOTAL 150.1 1956
TOTALS 52.5 68.7 -16.2 36.6
SINCE 7/1 0.7 17.1 -16.4 4.7
SNOWDEPTH AVG. 1
DAYS >= TRACE 48 28.6 19.4 36
DAYS >= 1.0 10 16.4 -6.4 5
GREATEST
SNOW DEPTH 15 03/05
24 HR TOTAL 9.1 01/22 TO 01/23
DEGREE DAYS
HEATING TOTAL 6197 6795 -598 6544
SINCE 7/1 2182 2451 -269 2252
COOLING TOTAL 423 447 -24 542
FREEZE DATES
RECORD
EARLIEST 09/14/1963
LATEST 05/31/1961
EARLIEST 10/31
LATEST 05/18
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WIND (MPH)
AVERAGE WIND SPEED 7.2
HIGHEST WIND SPEED/DIRECTION 40/150 DATE 12/18
HIGHEST GUST SPEED/DIRECTION 59/160 DATE 12/18
SKY COVER
AVERAGE SKY COVER 0.56
AVERAGE RH (PERCENT) 74
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 19 HEAVY RAIN 33
RAIN 61 LIGHT RAIN 145
FREEZING RAIN 0 LT FREEZING RAIN 4
HEAVY SNOW 3 SNOW 11
LIGHT SNOW 47 FOG 189
FOG W/VIS <= 1/4 MILE 37 HAZE 28
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
THE AVERAGE TEMPERATURE FOR THE YEAR WAS 48.8 DEGREES, WHICH WAS 1.3
DEGREES ABOVE NORMAL AND TIED FOR THE FOURTH WARMEST YEAR ON RECORD.
THE WARMEST YEAR ON RECORD WAS 2020 WHEN THE AVERAGE TEMPERATURE WAS
49.4 DEGREES. THE COOLEST YEAR ON RECORD WAS IN 1962 WHEN THE
AVERAGE TEMPERATURE WAS 43.3 DEGREES. THE FOLLOWING TABLE LISTS THE
WARMEST YEARS ON RECORD AT PORTLAND.
WARMEST ANNUAL AVERAGE TEMPERATURE (SINCE 1941).
RANK AVE YEAR
1 49.4 2020
2 49.2 2012
49.2 2010
4 48.8 2023 <===
48.8 2021
6 48.5 2016
48.5 2006
8 48.3 1998
9 48.2 2022
10 48.1 1990
A TOTAL OF 56.67 INCHES OF PRECIPITATION FELL, WHICH WAS 8.55 INCHES
ABOVE NORMAL. THE WETTEST YEAR ON RECORD WAS IN 2005 WHEN 66.40
INCHES OF PRECIPITATION FELL. THE DRIEST WAS 25.28 INCHES IN 1941.
A TOTAL OF 52.5 INCHES OF SNOW FELL, WHICH WAS 16.2 INCHES BELOW
NORMAL. THE LEAST SNOWY YEAR ON RECORD WAS 1973 WHEN ONLY 27.5
INCHES FELL. THE SNOWIEST YEAR ON RECORD WAS 1956 WHEN 150.1 INCHES
FELL.
$$
DS