938
CDUS46 KSEW 160129
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
629 PM PDT FRI AUG 15 2025
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR AUGUST 15 2025...
VALID TODAY AS OF 0500 PM LOCAL TIME.
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)
TODAY
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)
TODAY 0.25 1.20 1950 0.04 0.21 0.00
MONTH TO DATE 0.63 0.38 0.25 0.00
SINCE OCT 1 28.40 37.14 -8.74 33.65
SINCE JAN 1 15.00 21.20 -6.20 16.50
SNOWFALL (IN)
TODAY 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
TODAY 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
TODAY 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
...............................................................
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 10.8
SKY COVER
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 800 AM
LOWEST 90 100 AM
AVERAGE 94
......................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 78 98 1967
2020
MINIMUM TEMPERATURE (F) 57 47 1946
SUNRISE AND SUNSET
AUGUST 15 2025........SUNRISE 606 AM PDT SUNSET 820 PM PDT
AUGUST 16 2025........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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