397
CDUS46 KSEW 140831
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
131 AM PDT THU AUG 14 2025
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR AUGUST 13 2025...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1945 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 78 402 PM 92 2002 78 0 71
MINIMUM 62 806 AM 44 1955 58 4 59
AVERAGE 70 68 2 65
PRECIPITATION (IN)
YESTERDAY 0.00 0.85 2014 0.02 -0.02 0.00
MONTH TO DATE 0.16 0.31 -0.15 0.00
SINCE OCT 1 27.93 37.07 -9.14 33.65
SINCE JAN 1 14.53 21.13 -6.60 16.50
SNOWFALL (IN)
YESTERDAY 0.0 MM MM 0.0
MONTH TO DATE 0.0 0.0
SINCE OCT 1 2.3 0.3
SINCE JUL 1 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 1 -1 0
MONTH TO DATE 2 6 -4 2
SINCE JUN 1 117 155 -38 141
SINCE JUL 1 23 37 -14 9
COOLING
YESTERDAY 5 4 1 0
MONTH TO DATE 53 52 1 53
SINCE JUN 1 214 177 37 236
SINCE JAN 1 217 187 30 243
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WIND (MPH)
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION SW (220)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION SW (220)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 8.0
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 81 1100 PM
LOWEST 50 300 PM
AVERAGE 66
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 78 95 2010
MINIMUM TEMPERATURE (F) 58 44 1955
SUNRISE AND SUNSET
AUGUST 14 2025........SUNRISE 605 AM PDT SUNSET 822 PM PDT
AUGUST 15 2025........SUNRISE 606 AM PDT SUNSET 820 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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