881
CDUS46 KSEW 160826
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
126 AM PDT SUN AUG 16 2026
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR AUGUST 15 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 75 518 PM 96 2010 78 -3 68
MINIMUM 57 608 AM 47 1955 57 0 61
AVERAGE 66 68 -2 65
PRECIPITATION (IN)
YESTERDAY 0.00 1.20 1950 0.04 -0.04 0.76
MONTH TO DATE T 0.38 -0.38 1.14
SINCE OCT 1 36.35 37.14 -0.79 28.91
SINCE JAN 1 19.57 21.20 -1.63 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 MM
DEGREE DAYS
HEATING
YESTERDAY 0 1 -1 0
MONTH TO DATE 1 8 -7 2
SINCE JUN 1 116 157 -41 117
SINCE JUL 1 21 39 -18 23
COOLING
YESTERDAY 1 3 -2 0
MONTH TO DATE 50 58 -8 55
SINCE JUN 1 208 183 25 216
SINCE JAN 1 218 193 25 219
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WIND (MPH)
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION SW (210)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION S (190)
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION S (170)
AVERAGE WIND SPEED 6.4
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 600 AM
LOWEST 51 500 PM
AVERAGE 72
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 78 98 1967
2020
MINIMUM TEMPERATURE (F) 57 47 1946
SUNRISE AND SUNSET
AUGUST 16 2026........SUNRISE 607 AM PDT SUNSET 819 PM PDT
AUGUST 17 2026........SUNRISE 608 AM PDT SUNSET 817 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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