420
CDUS46 KSEW 250116
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
616 PM PDT WED SEP 24 2025
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 24 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 72 308 PM 89 1974 69 3 78
MINIMUM 53 635 AM 38 1948 52 1 58
AVERAGE 63 60 3 68
PRECIPITATION (IN)
TODAY 0.00 0.99 1950 0.06 -0.06 0.00
MONTH TO DATE 0.49 1.19 -0.70 0.41
SINCE OCT 1 29.40 38.92 -9.52 35.72
SINCE JAN 1 16.00 22.98 -6.98 18.57
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 2 5 -3 0
MONTH TO DATE 24 69 -45 65
SINCE SEP 1 24 69 -45 65
SINCE JUL 1 48 124 -76 103
COOLING
TODAY 0 0 0 3
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 5 RESULTANT WIND DIRECTION N (350)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 6.7
SKY COVER
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 84 700 AM
LOWEST 53 400 PM
AVERAGE 69
......................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 69 85 1991
MINIMUM TEMPERATURE (F) 52 36 1972
SUNRISE AND SUNSET
SEPTEMBER 24 2025.....SUNRISE 659 AM PDT SUNSET 702 PM PDT
SEPTEMBER 25 2025.....SUNRISE 701 AM PDT SUNSET 700 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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