227
CDUS46 KSEW 150826
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
126 AM PDT SAT AUG 15 2026
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...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR AUGUST 14 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 78 449 PM 95 2010 78 0 75
MINIMUM 56 808 AM 44 1955 58 -2 58
AVERAGE 67 68 -1 67
PRECIPITATION (IN)
YESTERDAY 0.00 1.60 1968 0.03 -0.03 0.22
MONTH TO DATE T 0.34 -0.34 0.38
SINCE OCT 1 36.35 37.10 -0.75 28.15
SINCE JAN 1 19.57 21.16 -1.59 14.75
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 7 -6 2
SINCE JUN 1 116 156 -40 117
SINCE JUL 1 21 38 -17 23
COOLING
YESTERDAY 2 3 -1 2
MONTH TO DATE 49 55 -6 55
SINCE JUN 1 207 180 27 216
SINCE JAN 1 217 190 27 219
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WIND (MPH)
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION SW (210)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION S (200)
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 6.2
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
FOG W/VISIBILITY <= 1/4 MILE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 500 AM
LOWEST 50 500 PM
AVERAGE 75
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 78 96 2010
MINIMUM TEMPERATURE (F) 57 47 1955
SUNRISE AND SUNSET
AUGUST 15 2026........SUNRISE 606 AM PDT SUNSET 821 PM PDT
AUGUST 16 2026........SUNRISE 607 AM PDT SUNSET 819 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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