851
CXUS56 KSEW 011032
CLMSEA

CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
332 AM PDT SAT NOV 01 2025

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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 2025...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1945 TO 2025

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           75   10/07         MM      MM       75  10/07
LOWEST            38   10/15         MM      MM       41  10/31
                       10/28
AVG. MAXIMUM    60.1               60.5    -0.4     60.6
AVG. MINIMUM    46.5               47.0    -0.5     47.4
MEAN            53.3               53.8    -0.5     54.0
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          3.70               3.91   -0.21     3.04
DAILY AVG.      0.12               0.13   -0.01     0.10
DAYS >= .01       14               14.3    -0.3       16
DAYS >= .10        8                8.4    -0.4        8
DAYS >= .50        2                2.6    -0.6        1
DAYS >= 1.00       1                0.7     0.3        0
GREATEST
 24 HR. TOTAL   1.05   10/24 TO 10/25

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                                  MM
GREATEST
 SNOW DEPTH        0                                   0
 24 HR TOTAL      MM                                  MM

DEGREE DAYS
HEATING TOTAL    354                349       5      336
 SINCE 7/1       429                506     -77       MM
COOLING TOTAL      0                  0       0        0
 SINCE 1/1       328                263      65       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              8.1
HIGHEST WIND SPEED/DIRECTION    36/180    DATE  10/25
HIGHEST GUST SPEED/DIRECTION    56/180    DATE  10/25

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.66
NUMBER OF DAYS FAIR            6
NUMBER OF DAYS PC              7
NUMBER OF DAYS CLOUDY         18

AVERAGE RH (PERCENT)     75

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              1     MIXED PRECIP               0
HEAVY RAIN                2     RAIN                       3
LIGHT RAIN               20     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      16     FOG W/VIS <= 1/4 MILE      2
HAZE                      1

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

$$