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CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAY ME
1257 AM EDT WED JUN 04 2025
...............................
...THE PORTLAND ME CLIMATE SUMMARY FOR THE SPRING SEASON, FROM
3/1/2025 TO 5/31/2025...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1941 TO 2025 (FOR TEMPERATURE)
CLIMATE RECORD PERIOD: 1871 TO 2025 (FOR PRECIPITATION)
CLIMATE RECORD PERIOD: 1882 TO 2025 (FOR SNOWFALL)
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
............................................................
TEMPERATURE (F)
RECORD
HIGH 94 05/31/1987
LOW -21 03/04/1950
HIGHEST 79 04/19 85 -6 84 05/22
05/23
LOWEST 2 03/03 6 -4 13 03/01
AVG. MAXIMUM 53.3 53.5 -0.2 54.0
AVG. MINIMUM 36.8 35.6 1.2 38.0
MEAN 45.1 44.5 0.6 46.0
DAYS MAX >= 90 0 0.4 -0.4 0
DAYS MAX <= 32 2 4.2 -2.2 1
DAYS MIN <= 32 33 37.2 -4.2 26
DAYS MIN <= 0 0 0.4 -0.4 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 22.55 1983
MINIMUM 4.23 1965
TOTALS 15.60 12.16 3.44 17.07
DAILY AVG. 0.17 0.13 0.04 0.18
DAYS >= .01 43 34.9 8.1 36
DAYS >= .10 32 21.1 10.9 28
DAYS >= .50 11 8.2 2.8 8
DAYS >= 1.00 2 2.7 -0.7 6
GREATEST
24 HR. TOTAL 2.49 05/09 TO 05/10
SNOWFALL (INCHES)
RECORDS
TOTAL 61.5 1906
TOTALS 5.5 16.4 -10.9 13.7
SINCE 7/1 54.1 68.7 -14.6 38.0
SNOWDEPTH AVG. 1
DAYS >= TRACE 12 6.4 5.6 7
DAYS >= 1.0 1 3.5 -2.5 2
GREATEST
SNOW DEPTH 12 03/01
24 HR TOTAL 3.5 03/29
DEGREE DAYS
HEATING TOTAL 1815 1894 -79 1735
SINCE 7/1 6590 6705 -115 6068
COOLING TOTAL 0 11 -11 20
SINCE 1/1 0 11 -11 20
............................................................
WIND (MPH)
AVERAGE WIND SPEED 8.2
HIGHEST WIND SPEED/DIRECTION 36/300 DATE 03/07
HIGHEST GUST SPEED/DIRECTION 56/300 DATE 03/07
SKY COVER
AVERAGE SKY COVER 0.66
AVERAGE RH (PERCENT) 73
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 3 HEAVY RAIN 11
RAIN 20 LIGHT RAIN 45
FREEZING RAIN 0 LT FREEZING RAIN 1
HEAVY SNOW 2 SNOW 4
LIGHT SNOW 9 FOG 48
FOG W/VIS <= 1/4 MILE 17 HAZE 4
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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