Climatological Report (Seasonal)
Issued by NWS Portland, ME
Issued by NWS Portland, ME
Versions:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
009
CXUS51 KGYX 020216
CLSPWM
PWMCLSPWM 000
TTAA00 GYX 020123
CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAY ME
923 PM EDT SUN SEP 01 2024
...................................
...THE PORTLAND ME CLIMATE SUMMARY FOR THE SUMMER SEASON, FROM
6/1/2024 TO 8/31/2024...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1941 TO 2024
CLIMATE RECORD PERIOD: 1871 TO 2024 (FOR PRECIPITATION)
CLIMATE RECORD PERIOD: 1882 TO 2024 (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 33 08/31/1965
06/04/1944
HIGHEST 94 06/20 93 1 89 07/12
LOWEST 45 06/02 42 3 43 06/04
AVG. MAXIMUM 78.2 77.3 0.9 74.4
AVG. MINIMUM 60.1 58.6 1.5 59.0
MEAN 69.1 68.0 1.1 66.7
DAYS MAX >= 90 4 4.2 -0.2 0
DAYS MAX <= 32 0 0.0 0.0 0
DAYS MIN <= 32 0 0.0 0.0 0
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 22.31 2009
MINIMUM 4.10 1999
TOTALS 10.10 11.15 -1.05 17.23
DAILY AVG. 0.11 0.12 -0.01 0.19
DAYS >= .01 36 31.9 4.1 46
DAYS >= .10 23 18.8 4.2 26
DAYS >= .50 8 6.7 1.3 12
DAYS >= 1.00 2 2.6 -0.6 5
GREATEST
24 HR. TOTAL 1.32 08/03
SNOWFALL (INCHES)
RECORDS
TOTAL
TOTALS 0.0 0.0 0.0 0.0
SINCE 7/1 0.0 0.0 0.0 0.0
SNOWDEPTH AVG. 0
DAYS >= TRACE 0 0.0 0.0 0
DAYS >= 1.0 0 0.0 0.0 0
GREATEST
SNOW DEPTH 0
24 HR TOTAL 0.0
DEGREE DAYS
HEATING TOTAL 70 115 -45 155
SINCE 7/1 18 21 -3 19
COOLING TOTAL 476 390 86 336
SINCE 1/1 496 401 95 342
................................................................
WIND (MPH)
AVERAGE WIND SPEED 6.0
HIGHEST WIND SPEED/DIRECTION 35/320 DATE 06/20
HIGHEST GUST SPEED/DIRECTION 48/320 DATE 06/20
SKY COVER
AVERAGE SKY COVER 0.49
AVERAGE RH (PERCENT) 77
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 18 HEAVY RAIN 11
RAIN 16 LIGHT RAIN 45
FREEZING RAIN 0 LT FREEZING RAIN 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 FOG 45
FOG W/VIS <= 1/4 MILE 10 HAZE 3
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
THE AVERAGE TEMPERATURE FOR THE SUMMER WAS 69.1 DEGREES, WHICH WAS
1.1 DEGREES ABOVE NORMAL AND TIES WITH 2022 FOR THE SECOND WARMEST
SUMMER ON RECORD. THE WARMEST SUMMER ON RECORD WAS IN 2020 WHEN THE
AVERAGE TEMPERATURE WAS 70.5 DEGREES. THE COOLEST SUMMER WAS IN
1964, 1962, AND 1954 WHEN THE AVERAGE TEMPERATURE WAS 63.7 DEGREES.
THE FOLLOWING TABLE LISTS THE WARMEST SUMMERS ON RECORD AT PORTLAND.
WARMEST AVERAGE TEMPERATURE IN SUMMER (SINCE 1941)...
RANK TEMP YEAR
1 70.5 2020
2 69.1 2024 <===
69.1 2022
4 69.0 2021
5 68.9 2018
68.9 2016
7 68.7 2010
68.7 1988
9 68.5 1973
10 68.4 2012
68.4 1999
68.4 1991
A TOTAL OF 10.10 INCHES OF PRECIPITATION FELL, WHICH WAS 1.05 INCHES
BELOW NORMAL. THE DRIEST SUMMER ON RECORD WAS IN 1999 WHEN ONLY 4.10
INCHES OF PRECIPITATION FELL. THE WETTEST WAS 22.31 INCHES IN 2009.
THE FOLLOWING DAILY RECORDS WERE SET OR TIED IN SUMMER 2024...
DATE RECORD PREVIOUS
JUNE 20 94 - WARMEST HIGH TEMPERATURE - 93 IN 2020 AND OTHERS
JUNE 20 71 - WARMEST LOW TEMPERATURE - 69 IN 2020
JUNE 20 83 - WARMEST AVERAGE TEMPERATURE - 81 IN 2020
JUNE 21 65 - WARMEST LOW TEMPERATURE - 64 IN 2012
JULY 10 70 - WARMEST LOW TEMPERATURE - 68 IN 2010 AND OTHERS
JULY 11 68 - WARMEST LOW TEMPERATURE - 68 IN 2020 (TIED)
JULY 13 67 - WARMEST LOW TEMPERATURE - 67 IN 2020 AND OTHERS (TIED)
JULY 15 92 - WARMEST HIGH TEMPERATURE - 92 IN 1952 (TIED)
JULY 23 1.25 - GREATEST PRECIPITATION - 1.11 IN 1876
AUG 3 70 - WARMEST LOW TEMPERATURE - 70 IN 2020 AND OTHERS (TIED)
$$
DS