237
CDUS46 KSEW 220827
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
127 AM PDT SAT AUG 22 2026
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...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR AUGUST 21 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 81 1157 AM 91 2018 77 4 78
MINIMUM 60 1159 PM 44 1947 57 3 53
AVERAGE 71 67 4 66
PRECIPITATION (IN)
YESTERDAY 0.00 0.70 1989 0.03 -0.03 0.00
MONTH TO DATE T 0.58 -0.58 1.14
SINCE OCT 1 36.35 37.34 -0.99 28.91
SINCE JAN 1 19.57 21.40 -1.83 15.51
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 14 -13 2
SINCE JUN 1 116 163 -47 117
SINCE JUL 1 21 45 -24 23
COOLING
YESTERDAY 6 3 3 1
MONTH TO DATE 76 76 0 67
SINCE JUN 1 234 201 33 228
SINCE JAN 1 244 211 33 231
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WIND (MPH)
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION W (250)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION SW (220)
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION S (180)
AVERAGE WIND SPEED 5.0
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 87 1100 PM
LOWEST 47 1200 PM
AVERAGE 67
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 77 89 2018
MINIMUM TEMPERATURE (F) 57 45 1960
SUNRISE AND SUNSET
AUGUST 22 2026........SUNRISE 615 AM PDT SUNSET 808 PM PDT
AUGUST 23 2026........SUNRISE 616 AM PDT SUNSET 806 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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