319
CDUS46 KSEW 210827
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
127 AM PDT MON APR 21 2025
...............................
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR APRIL 20 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 58 332 PM 81 2016 60 -2 72
MINIMUM 45 823 AM 30 1961 44 1 45
AVERAGE 52 52 0 59
PRECIPITATION (IN)
YESTERDAY 0.38 0.49 1946 0.10 0.28 T
MONTH TO DATE 2.36 2.28 0.08 0.40
SINCE OCT 1 26.32 31.93 -5.61 30.27
SINCE JAN 1 12.92 15.99 -3.07 13.12
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 2.3 0.3
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 13 13 0 6
MONTH TO DATE 264 293 -29 293
SINCE MAR 1 810 850 -40 842
SINCE JUL 1 3967 3897 70 3753
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE MAR 1 0 0 0 0
SINCE JAN 1 0 0 0 0
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WIND (MPH)
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION S (180)
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION SW (240)
AVERAGE WIND SPEED 9.4
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 700 PM
LOWEST 60 200 PM
AVERAGE 78
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 60 76 1982
MINIMUM TEMPERATURE (F) 44 29 1951
SUNRISE AND SUNSET
APRIL 21 2025.........SUNRISE 609 AM PDT SUNSET 808 PM PDT
APRIL 22 2025.........SUNRISE 607 AM PDT SUNSET 809 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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