247
CDUS46 KSEW 280117
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
617 PM PDT WED AUG 27 2025
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR AUGUST 27 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 75 239 PM 88 1986 76 -1 68
1994
2009
MINIMUM 61 624 AM 44 1952 56 5 54
AVERAGE 68 66 2 61
PRECIPITATION (IN)
TODAY 0.00 0.76 1951 0.04 -0.04 0.08
MONTH TO DATE 1.14 0.81 0.33 1.66
SINCE OCT 1 28.91 37.57 -8.66 35.31
SINCE JAN 1 15.51 21.63 -6.12 18.16
SNOWFALL (IN)
TODAY MM 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 0 1 -1 4
MONTH TO DATE 2 20 -18 26
SINCE JUN 1 117 169 -52 165
SINCE JUL 1 23 51 -28 33
COOLING
TODAY 3 2 1 0
MONTH TO DATE 122 90 32 69
SINCE JUN 1 283 215 68 252
SINCE JAN 1 286 225 61 259
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION SW (210)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION SE (150)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION S (200)
AVERAGE WIND SPEED 6.2
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 86 600 AM
LOWEST 55 200 PM
AVERAGE 71
......................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 76 95 1967
MINIMUM TEMPERATURE (F) 56 46 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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