111
CDUS46 KSEW 140223
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
623 PM PST SAT DEC 13 2025
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR DECEMBER 13 2025...
VALID TODAY AS OF 0500 PM LOCAL TIME.
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1945 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 52 210 PM 59 1952 47 5 46
MINIMUM 45 659 AM 19 1972 37 8 41
AVERAGE 49 42 7 44
PRECIPITATION (IN)
TODAY 0.00 1.63 2001 0.18 -0.18 0.52
MONTH TO DATE 4.48 2.43 2.05 1.14
SINCE OCT 1 13.89 12.65 1.24 9.04
SINCE JAN 1 30.16 36.05 -5.89 27.82
SNOWFALL (IN)
TODAY 0.0 0.8 2008 0.0
MONTH TO DATE 0.0 0.0
SINCE OCT 1 0.0 0.0
SINCE JUL 1 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 16 23 -7 21
MONTH TO DATE 213 292 -79 313
SINCE DEC 1 213 292 -79 313
SINCE JUL 1 1127 1353 -226 1354
COOLING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 328 263 65 315
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WIND (MPH)
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION S (160)
HIGHEST WIND SPEED 8 HIGHEST WIND DIRECTION SE (140)
HIGHEST GUST SPEED 10 HIGHEST GUST DIRECTION S (160)
AVERAGE WIND SPEED 4.3
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
FOG
FOG W/VISIBILITY <= 1/4 MILE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 800 AM
LOWEST 89 600 AM
AVERAGE 95
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 47 59 2002
MINIMUM TEMPERATURE (F) 37 18 1945
SUNRISE AND SUNSET
DECEMBER 13 2025......SUNRISE 749 AM PST SUNSET 418 PM PST
DECEMBER 14 2025......SUNRISE 750 AM PST SUNSET 419 PM PST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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