266
CDUS46 KSEW 160117
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
617 PM PDT WED OCT 15 2025
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR OCTOBER 15 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 61 147 PM 77 1991 61 0 59
2022
MINIMUM 38 616 AM 35 1946 47 -9 51
1952
AVERAGE 50 54 -4 55
PRECIPITATION (IN)
TODAY 0.00 0.93 1951 0.12 -0.12 0.03
MONTH TO DATE 0.60 1.50 -0.90 0.83
SINCE OCT 1 0.60 1.50 -0.90 0.83
SINCE JAN 1 16.87 24.90 -8.03 19.61
SNOWFALL (IN)
TODAY 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
TODAY 15 11 4 10
MONTH TO DATE 135 134 1 119
SINCE SEP 1 186 236 -50 225
SINCE JUL 1 210 291 -81 263
COOLING
TODAY 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 4 RESULTANT WIND DIRECTION N (350)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION N (360)
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION N (360)
AVERAGE WIND SPEED 5.3
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 89 600 AM
LOWEST 37 400 PM
AVERAGE 63
......................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 60 88 2022
MINIMUM TEMPERATURE (F) 47 32 1946
SUNRISE AND SUNSET
OCTOBER 15 2025.......SUNRISE 728 AM PDT SUNSET 620 PM PDT
OCTOBER 16 2025.......SUNRISE 730 AM PDT SUNSET 619 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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