549
CDUS46 KSEW 240116
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
616 PM PDT SAT AUG 23 2025
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR AUGUST 23 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 90 357 PM 91 1988 77 13 59
MINIMUM 62 502 AM 46 1955 57 5 55
AVERAGE 76 67 9 57
PRECIPITATION (IN)
TODAY 0.00 1.49 1977 0.03 -0.03 0.44
MONTH TO DATE 1.14 0.65 0.49 1.18
SINCE OCT 1 28.91 37.41 -8.50 34.83
SINCE JAN 1 15.51 21.47 -5.96 17.68
SNOWFALL (IN)
TODAY MM 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 MM
DEGREE DAYS
HEATING
TODAY 0 1 -1 8
MONTH TO DATE 2 16 -14 14
SINCE JUN 1 117 165 -48 153
SINCE JUL 1 23 47 -24 21
COOLING
TODAY 11 3 8 0
MONTH TO DATE 86 82 4 69
SINCE JUN 1 247 207 40 252
SINCE JAN 1 250 217 33 259
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 8 RESULTANT WIND DIRECTION N (10)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION N (20)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION NE (40)
AVERAGE WIND SPEED 8.9
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 67 500 AM
LOWEST 27 400 PM
AVERAGE 47
......................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 77 88 1982
MINIMUM TEMPERATURE (F) 57 45 1951
SUNRISE AND SUNSET
AUGUST 23 2025........SUNRISE 617 AM PDT SUNSET 806 PM PDT
AUGUST 24 2025........SUNRISE 618 AM PDT SUNSET 804 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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