656
CDUS46 KSEW 010119
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
619 PM PDT WED APR 30 2025
...............................
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR APRIL 30 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 61 441 PM 85 1976 63 -2 56
MINIMUM 43 529 AM 32 1954 46 -3 41
AVERAGE 52 54 -2 49
PRECIPITATION (IN)
TODAY 0.00 0.87 1987 0.08 -0.08 0.02
MONTH TO DATE 2.55 3.18 -0.63 0.89
SINCE OCT 1 26.51 32.83 -6.32 30.76
SINCE JAN 1 13.11 16.89 -3.78 13.61
SNOWFALL (IN)
TODAY 0.0 T 1954 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
TODAY 13 11 2 16
MONTH TO DATE 381 412 -31 420
SINCE MAR 1 927 969 -42 969
SINCE JUL 1 4084 4016 68 3880
COOLING
TODAY 0 0 0 0
MONTH TO DATE 0 1 -1 0
SINCE MAR 1 0 1 -1 0
SINCE JAN 1 0 1 -1 0
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WIND (MPH)
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION NW (310)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION W (280)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION W (290)
AVERAGE WIND SPEED 4.4
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 86 700 AM
LOWEST 47 400 PM
AVERAGE 67
......................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 63 85 2014
MINIMUM TEMPERATURE (F) 46 28 1954
SUNRISE AND SUNSET
APRIL 30 2025.........SUNRISE 553 AM PDT SUNSET 820 PM PDT
MAY 1 2025...........SUNRISE 552 AM PDT SUNSET 822 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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