683
CDUS46 KSEW 120826
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
126 AM PDT WED AUG 12 2026
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR AUGUST 11 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 79 434 PM 96 2014 78 1 87
MINIMUM 55 559 AM 46 1954 58 -3 69
AVERAGE 67 68 -1 78
PRECIPITATION (IN)
YESTERDAY 0.00 0.32 2009 0.03 -0.03 0.00
MONTH TO DATE T 0.26 -0.26 0.16
SINCE OCT 1 36.35 37.02 -0.67 27.93
SINCE JAN 1 19.57 21.08 -1.51 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 4 -3 2
SINCE JUN 1 116 153 -37 117
SINCE JUL 1 21 35 -14 23
COOLING
YESTERDAY 2 4 -2 13
MONTH TO DATE 39 44 -5 35
SINCE JUN 1 197 169 28 196
SINCE JAN 1 207 179 28 199
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WIND (MPH)
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION W (260)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION W (250)
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION W (270)
AVERAGE WIND SPEED 4.7
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 500 AM
LOWEST 40 400 PM
AVERAGE 68
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 78 96 1977
MINIMUM TEMPERATURE (F) 58 49 1949
1950
1953
SUNRISE AND SUNSET
AUGUST 12 2026........SUNRISE 602 AM PDT SUNSET 826 PM PDT
AUGUST 13 2026........SUNRISE 603 AM PDT SUNSET 824 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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