Climatological Report (Monthly)
Issued by NWS Portland, ME

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CLMPWM

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CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAY ME
155 PM EST TUE NOV 04 2025

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

...THE PORTLAND ME CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 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             88   10/07/1963
 LOW              15   10/28/1976
HIGHEST           86   10/06         75      11       78  10/21
LOWEST            31   10/10         26       5       24  10/29
AVG. MAXIMUM    62.4               59.5     2.9     61.5
AVG. MINIMUM    42.3               41.0     1.3     39.9
MEAN            52.4               50.3     2.1     50.7
DAYS MAX >= 90     0                0.0     0.0        0
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     1                6.3    -5.3        4
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       16.86   1996
 MINIMUM        0.09   1924
TOTALS          3.53               5.25   -1.72     1.68
DAILY AVG.      0.11               0.17   -0.06     0.05
DAYS >= .01        6               10.9    -4.9        6
DAYS >= .10        5                6.8    -1.8        4
DAYS >= .50        3                2.9     0.1        1
DAYS >= 1.00       1                1.4    -0.4        0
GREATEST
 24 HR. TOTAL   1.52   10/30 TO 10/31

SNOWFALL (INCHES)
RECORDS
 TOTAL           5.2   2011
TOTALS           0.0                0.2    -0.2      0.0
SINCE 7/1        0.0                0.2    -0.2      0.0
SNOWDEPTH AVG.     0
DAYS >= TRACE      0                0.1    -0.1
DAYS >= 1.0        0                0.1    -0.1
GREATEST
 SNOW DEPTH        0
 24 HR TOTAL     0.0

DEGREE DAYS
HEATING TOTAL    389                459     -70      432
 SINCE 7/1       515                632    -117      550
COOLING TOTAL      6                  2       4        0
 SINCE 1/1       440                446      -6      517
................................................................

WIND (MPH)
AVERAGE WIND SPEED              7.5
HIGHEST WIND SPEED/DIRECTION    29/270    DATE  10/31
HIGHEST GUST SPEED/DIRECTION    45/280    DATE  10/31

SKY COVER
AVERAGE SKY COVER           0.45

AVERAGE RH (PERCENT)     72

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     HEAVY RAIN                 5
RAIN                      4     LIGHT RAIN                10
FREEZING RAIN             0     LT FREEZING RAIN           0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     FOG                        9
FOG W/VIS <= 1/4 MILE     0     HAZE                       1

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

&&

...THE FOLLOWING DAILY RECORDS WERE SET OR TIED IN OCTOBER 2025...
DATE   RECORD                                PREVIOUS
OCT  6  86   - WARMEST HIGH TEMPERATURE    - 84 IN 1947 AND 1946


$$