Climatological Report (Seasonal)
Issued by NWS Portland, ME

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
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
000
CXUS51 KGYX 031206
CLSPWM

PWMCLSPWM 000
TTAA00 GYX 020432

CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAY ME
1132 PM EST FRI DEC 01 2023

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

...THE PORTLAND ME CLIMATE SUMMARY FOR THE FALL SEASON, FROM
9/1/2023 TO 11/30/2023...

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             95   09/11/1983
                       09/07/1945
 LOW               3   11/24/1989
HIGHEST           88   09/05         86       2       81  09/10
                                                          09/11
LOWEST            17   11/21         16       1       18  11/21
AVG. MAXIMUM    60.5               59.7     0.8     60.9
AVG. MINIMUM    43.2               41.6     1.6     42.1
MEAN            51.9               50.6     1.3     51.5
DAYS MAX >= 90     0                0.5    -0.5        0
DAYS MAX <= 32     0                1.1    -1.1        0
DAYS MIN <= 32    25               24.8     0.2       21
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       24.18   2005
 MINIMUM        4.88   1915
TOTALS         11.04              13.27   -2.23    17.27
DAILY AVG.      0.12               0.15   -0.03     0.19
DAYS >= .01       24               30.9    -6.9       30
DAYS >= .10       15               18.9    -3.9       18
DAYS >= .50        7                8.1    -1.1       13
DAYS >= 1.00       3                3.6    -0.6        7
GREATEST
 24 HR. TOTAL   3.24   09/18 TO 09/19

SNOWFALL (INCHES)
RECORDS
 TOTAL          24.3   1921
TOTALS           0.2                2.5    -2.3        T
SINCE 7/1        0.2                2.5    -2.3        T
SNOWDEPTH AVG.     0
DAYS >= TRACE      3                1.6     1.4        3
DAYS >= 1.0        0                0.8    -0.8        0
GREATEST
 SNOW DEPTH        0
 24 HR TOTAL     0.2   11/09

DEGREE DAYS
HEATING TOTAL   1250               1353    -103     1235
 SINCE 7/1      1269               1377    -108     1236
COOLING TOTAL     81                 45      36       28
 SINCE 1/1       423                446     -23      542
................................................................

WIND (MPH)
AVERAGE WIND SPEED              6.2
HIGHEST WIND SPEED/DIRECTION    36/150    DATE  11/27
HIGHEST GUST SPEED/DIRECTION    48/140    DATE  11/27

SKY COVER
AVERAGE SKY COVER        0.52

AVERAGE RH (PERCENT)     76

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              2     HEAVY RAIN                 7
RAIN                     12     LIGHT RAIN                30
FREEZING RAIN             0     LT FREEZING RAIN           0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                3     FOG                       40
FOG W/VIS <= 1/4 MILE     7     HAZE                       6

-  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 51.9 DEGREES, WHICH
WAS 1.3 DEGREES ABOVE NORMAL AND TIED WITH 2016 AS 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     51.9  2023  <===
      51.9  2016
6     51.7  2020
7     51.5  2022
      51.5  2005
      51.5  1961

THE FIRST FREEZE OF THIS FALL OCCURRED ON OCTOBER 31ST WHEN THE LOW
TEMPERATURE REACHED 31 DEGREES. THIS WAS 16 DAYS LATER THAN THE
NORMAL FIRST FREEZE, WHICH OCCURS ON OCTOBER 15TH.

A TOTAL OF 11.04 INCHES OF PRECIPITATION FELL, WHICH WAS 2.23 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 0.2 INCHES OF SNOW WAS MEASURED THIS FALL, WHICH WAS 2.3 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.

$$

DS


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.