424
CDUS46 KSEW 160833
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
133 AM PDT SAT AUG 16 2025
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR AUGUST 15 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 68 314 PM 96 2010 78 -10 74
MINIMUM 61 415 AM 47 1955 57 4 58
AVERAGE 65 68 -3 66
PRECIPITATION (IN)
YESTERDAY 0.76 1.20 1950 0.04 0.72 0.00
MONTH TO DATE 1.14 0.38 0.76 0.00
SINCE OCT 1 28.91 37.14 -8.23 33.65
SINCE JAN 1 15.51 21.20 -5.69 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 8 -6 2
SINCE JUN 1 117 157 -40 141
SINCE JUL 1 23 39 -16 9
COOLING
YESTERDAY 0 3 -3 1
MONTH TO DATE 55 58 -3 58
SINCE JUN 1 216 183 33 241
SINCE JAN 1 219 193 26 248
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WIND (MPH)
RESULTANT WIND SPEED 10 RESULTANT WIND DIRECTION S (180)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION S (180)
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION S (200)
AVERAGE WIND SPEED 10.5
SKY COVER
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 1000 PM
LOWEST 90 100 AM
AVERAGE 94
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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 2025........SUNRISE 607 AM PDT SUNSET 819 PM PDT
AUGUST 17 2025........SUNRISE 609 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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