312
CDUS46 KSEW 270826
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
126 AM PDT WED AUG 27 2025
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR AUGUST 26 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 88 423 PM 92 2016 76 12 71
MINIMUM 62 628 AM 46 1957 57 5 55
AVERAGE 75 66 9 63
PRECIPITATION (IN)
YESTERDAY 0.00 0.67 1977 0.04 -0.04 0.06
MONTH TO DATE 1.14 0.77 0.37 1.58
SINCE OCT 1 28.91 37.53 -8.62 35.23
SINCE JAN 1 15.51 21.59 -6.08 18.08
SNOWFALL (IN)
YESTERDAY 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
YESTERDAY 0 1 -1 2
MONTH TO DATE 2 19 -17 22
SINCE JUN 1 117 168 -51 161
SINCE JUL 1 23 50 -27 29
COOLING
YESTERDAY 10 2 8 0
MONTH TO DATE 119 88 31 69
SINCE JUN 1 280 213 67 252
SINCE JAN 1 283 223 60 259
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WIND (MPH)
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION NW (330)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION NW (310)
AVERAGE WIND SPEED 4.6
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 80 400 AM
LOWEST 29 400 PM
AVERAGE 55
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 76 88 1986
1994
2009
MINIMUM TEMPERATURE (F) 56 44 1952
SUNRISE AND SUNSET
AUGUST 27 2025........SUNRISE 622 AM PDT SUNSET 758 PM PDT
AUGUST 28 2025........SUNRISE 623 AM PDT SUNSET 756 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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