663
CXUS51 KGYX 031717
CLSPWM

PWMCLSPWM 000
TTAA00 GYX 011917

CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAY ME
217 PM EST SUN DEC 01 2024

...................................

...THE PORTLAND ME CLIMATE SUMMARY FOR THE FALL SEASON, FROM
9/1/2024 TO 11/30/2024...

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             95   09/11/1983
                       09/07/1945
 LOW               3   11/24/1989
HIGHEST           83   09/17         86      -3       88  09/05
LOWEST            22   11/15         16       6       17  11/21
AVG. MAXIMUM    62.3               59.7     2.6     60.5
AVG. MINIMUM    41.8               41.6     0.2     43.2
MEAN            52.1               50.6     1.5     51.9
DAYS MAX >= 90     0                0.5    -0.5        0
DAYS MAX <= 32     0                1.1    -1.1        0
DAYS MIN <= 32    20               24.8    -4.8       25
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       24.18   2005
 MINIMUM        4.88   1915
TOTALS          6.61              13.27   -6.66    11.04
DAILY AVG.      0.07               0.15   -0.08     0.12
DAYS >= .01       19               30.9   -11.9       24
DAYS >= .10       10               18.9    -8.9       15
DAYS >= .50        4                8.1    -4.1        7
DAYS >= 1.00       3                3.6    -0.6        3
GREATEST
 24 HR. TOTAL   1.77   09/26

SNOWFALL (INCHES)
RECORDS
 TOTAL          24.3   1921
TOTALS             T                2.5    -2.5      0.2
SINCE 7/1          T                2.5    -2.5      0.2
SNOWDEPTH AVG.     0
DAYS >= TRACE      2                1.6     0.4        3
DAYS >= 1.0        0                0.8    -0.8        0
GREATEST
 SNOW DEPTH        0
 24 HR TOTAL       T   11/28
                       11/29

DEGREE DAYS
HEATING TOTAL   1177               1353    -176     1250
 SINCE 7/1      1195               1377    -182     1269
COOLING TOTAL     26                 45     -19       81
 SINCE 1/1       522                446      76      423
................................................................

WIND (MPH)
AVERAGE WIND SPEED              6.7
HIGHEST WIND SPEED/DIRECTION    32/300    DATE  10/12
HIGHEST GUST SPEED/DIRECTION    50/310    DATE  10/12

SKY COVER
AVERAGE SKY COVER           0.43

AVERAGE RH (PERCENT)     72

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              1     HEAVY RAIN                 5
RAIN                      7     LIGHT RAIN                26
FREEZING RAIN             0     LT FREEZING RAIN           0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                2     FOG                       26
FOG W/VIS <= 1/4 MILE     6     HAZE                       1

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

&&

THE AVERAGE TEMPERATURE FOR THE FALL SEASON WAS 52.1 DEGREES, WHICH
WAS 1.5 DEGREES ABOVE NORMAL AND WAS THE 5TH WARMEST FALL ON RECORD.
THE WARMEST FALL ON RECORD WAS IN 2017 AND 2011 WHEN THE AVERAGE
TEMPERATURE WAS 53.0 DEGREES. THE COOLEST WAS 45.6 DEGREES IN 1976.
THE FOLLOWING TABLE LISTS THE WARMEST FALLS ON RECORD AT PORTLAND.

WARMEST AVERAGE TEMPERATURE IN FALL (SINCE 1941)...
RANK  TEMP  YEAR
1     53.0  2017
      53.0  2011
3     52.3  2021
      52.3  2015
5     52.1  2024  <===
6     51.9  2023
      51.9  2016
8     51.7  2020
9     51.5  2022
      51.5  2005
      51.5  1961

THE FIRST FREEZE OF THIS FALL OCCURRED ON OCTOBER 17TH WHEN LOW
TEMPERATURE REACHED 29 DEGREES. THIS WAS TWO DAYS LATER THAN THE
NORMAL FIRST FREEZE, WHICH OCCURS ON OCTOBER 15TH.

A TOTAL OF 6.61 INCHES OF PRECIPITATION FELL, WHICH WAS 6.66 INCHES
BELOW NORMAL. THE DRIEST FALL ON RECORD WAS IN 1915 WHEN ONLY 4.88
INCHES FELL. THE WETTEST WAS 24.18 INCHES IN 2005.

ONLY A TRACE OF SNOW OCCURRED THIS FALL, WHICH WAS 2.5 INCHES BELOW
NORMAL. SNOW IN FALL CAN BE HIT OR MISS. IN 143 YEARS OF
RECORDS THERE HAVE BEEN 4 YEARS WITH NO SNOW IN FALL, MOST RECENTLY
IN 2006. THE SNOWIEST FALL WAS 24.3 INCHES IN 1921.

$$