655
CDUS46 KSEW 260119
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
619 PM PDT THU SEP 25 2025
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 25 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 62 459 PM 85 1991 69 -7 65
MINIMUM 50 635 AM 36 1972 52 -2 55
AVERAGE 56 60 -4 60
PRECIPITATION (IN)
TODAY 0.00 0.82 2023 0.06 -0.06 0.10
MONTH TO DATE 0.49 1.25 -0.76 0.51
SINCE OCT 1 29.40 38.98 -9.58 35.82
SINCE JAN 1 16.00 23.04 -7.04 18.67
SNOWFALL (IN)
TODAY 0.0 MM MM 0.0
MONTH TO DATE 0.0 0.0
SINCE OCT 1 2.3 0.3
SINCE JUL 1 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 9 5 4 5
MONTH TO DATE 33 74 -41 70
SINCE SEP 1 33 74 -41 70
SINCE JUL 1 57 129 -72 108
COOLING
TODAY 0 0 0 0
MONTH TO DATE 34 30 4 42
SINCE SEP 1 34 30 4 42
SINCE JAN 1 328 263 65 315
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION NW (300)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION N (20)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION N (10)
AVERAGE WIND SPEED 4.9
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 700 AM
LOWEST 56 400 PM
AVERAGE 78
......................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 68 82 2022
MINIMUM TEMPERATURE (F) 52 39 1972
SUNRISE AND SUNSET
SEPTEMBER 25 2025.....SUNRISE 701 AM PDT SUNSET 700 PM PDT
SEPTEMBER 26 2025.....SUNRISE 702 AM PDT SUNSET 658 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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