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CXUS56 KSEW 011135
CLMSEA

CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
335 AM PST SUN NOV 01 2026

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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 2026...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1945 TO 2026

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             89   10/01/1987
 LOW              28   10/19/1949
HIGHEST           77   10/16         MM      MM       75  10/07
LOWEST            34   10/31         MM      MM       38  10/15
                                                          10/28
AVG. MAXIMUM    62.0               60.5     1.5     60.1
AVG. MINIMUM    46.8               47.0    -0.2     46.5
MEAN            54.4               53.8     0.6     53.3
DAYS MAX >= 90     0                0.0     0.0        0
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     0                0.2    -0.2        0
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       10.05   2016
 MINIMUM        0.31   1987
TOTALS          1.29               3.91   -2.62     3.70
DAILY AVG.      0.04               0.13   -0.09     0.12
DAYS >= .01        9               14.3    -5.3       14
DAYS >= .10        4                8.4    -4.4        8
DAYS >= .50        1                2.6    -1.6        2
DAYS >= 1.00       0                0.7    -0.7        1
GREATEST
 24 HR. TOTAL   0.55   10/29 TO 10/30

SNOWFALL (INCHES)
RECORDS
 TOTAL            MM   MM
TOTALS           0.0                0.0     0.0      0.0
SINCE 7/1        0.0                0.0     0.0       MM
SNOWDEPTH AVG.     0                                   0
DAYS >= 1.0        0                                   0
GREATEST
 SNOW DEPTH        0                                   0
 24 HR TOTAL      MM                                  MM

DEGREE DAYS
HEATING TOTAL    323                349     -26      354
 SINCE 7/1       481                506     -25       MM
COOLING TOTAL      0                  0       0        0
 SINCE 1/1       267                263       4       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              6.4
HIGHEST WIND SPEED/DIRECTION    22/050    DATE  10/09
HIGHEST GUST SPEED/DIRECTION    31/170    DATE  10/28

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.62
NUMBER OF DAYS FAIR            4
NUMBER OF DAYS PC             18
NUMBER OF DAYS CLOUDY          9

AVERAGE RH (PERCENT)     76

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       2
LIGHT RAIN               11     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      21     FOG W/VIS <= 1/4 MILE      9
HAZE                      4

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

$$