247
CDUS46 KSEW 310828
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
128 AM PDT FRI OCT 31 2025
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR OCTOBER 30 2025...
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)
YESTERDAY
MAXIMUM 52 302 PM 66 1967 56 -4 51
MINIMUM 42 1159 PM 30 1991 44 -2 42
AVERAGE 47 50 -3 47
PRECIPITATION (IN)
YESTERDAY 0.00 1.36 2012 0.18 -0.18 0.23
MONTH TO DATE 3.09 3.74 -0.65 2.67
SINCE OCT 1 3.09 3.74 -0.65 2.67
SINCE JAN 1 19.36 27.14 -7.78 21.45
SNOWFALL (IN)
YESTERDAY 0.0 MM MM 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
YESTERDAY 18 15 3 18
MONTH TO DATE 339 334 5 317
SINCE SEP 1 390 436 -46 423
SINCE JUL 1 414 491 -77 461
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE SEP 1 34 30 4 42
SINCE JAN 1 328 263 65 315
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 8 RESULTANT WIND DIRECTION N (0)
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION N (10)
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION N (10)
AVERAGE WIND SPEED 9.2
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 1100 PM
LOWEST 74 300 PM
AVERAGE 87
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 56 71 1949
MINIMUM TEMPERATURE (F) 44 30 2003
2006
SUNRISE AND SUNSET
OCTOBER 31 2025.......SUNRISE 752 AM PDT SUNSET 553 PM PDT
NOVEMBER 1 2025......SUNRISE 754 AM PDT SUNSET 551 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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