212
CDUS46 KSEW 110826
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
126 AM PDT TUE AUG 11 2026
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR AUGUST 10 2026...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1945 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 74 553 PM 98 1981 78 -4 88
MINIMUM 55 701 AM 46 1954 58 -3 61
AVERAGE 65 68 -3 75
PRECIPITATION (IN)
YESTERDAY 0.00 0.38 2019 0.03 -0.03 0.00
MONTH TO DATE T 0.23 -0.23 0.16
SINCE OCT 1 36.35 36.99 -0.64 27.93
SINCE JAN 1 19.57 21.05 -1.48 14.53
SNOWFALL (IN)
YESTERDAY 0.0 MM MM 0.0
MONTH TO DATE 0.0 0.0
SINCE OCT 1 3.0 2.3
SINCE JUL 1 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 1 -1 0
MONTH TO DATE 1 3 -2 2
SINCE JUN 1 116 152 -36 117
SINCE JUL 1 21 34 -13 23
COOLING
YESTERDAY 0 4 -4 10
MONTH TO DATE 37 40 -3 22
SINCE JUN 1 195 165 30 183
SINCE JAN 1 205 175 30 186
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WIND (MPH)
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION W (260)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION SW (240)
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION W (250)
AVERAGE WIND SPEED 4.8
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 300 AM
LOWEST 48 500 PM
AVERAGE 72
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 78 96 2014
MINIMUM TEMPERATURE (F) 58 46 1954
SUNRISE AND SUNSET
AUGUST 11 2026........SUNRISE 600 AM PDT SUNSET 827 PM PDT
AUGUST 12 2026........SUNRISE 602 AM PDT SUNSET 826 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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