741
CDUS46 KSEW 110828
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
128 AM PDT SUN MAY 11 2025
...............................
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR MAY 10 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 63 555 PM 87 2020 65 -2 84
MINIMUM 49 320 AM 37 1947 48 1 52
AVERAGE 56 56 0 68
PRECIPITATION (IN)
YESTERDAY T 0.61 2000 0.07 -0.07 0.00
MONTH TO DATE T 0.68 -0.68 0.28
SINCE OCT 1 26.51 33.51 -7.00 31.04
SINCE JAN 1 13.11 17.57 -4.46 13.89
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 9 9 0 0
MONTH TO DATE 86 97 -11 111
SINCE MAR 1 1013 1066 -53 1080
SINCE JUL 1 4170 4113 57 3991
COOLING
YESTERDAY 0 0 0 3
MONTH TO DATE 0 0 0 3
SINCE MAR 1 0 1 -1 3
SINCE JAN 1 0 1 -1 3
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WIND (MPH)
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION SW (240)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION W (250)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION SW (240)
AVERAGE WIND SPEED 6.9
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 71 700 AM
LOWEST 38 600 PM
AVERAGE 55
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 66 87 1971
MINIMUM TEMPERATURE (F) 48 35 1953
SUNRISE AND SUNSET
MAY 11 2025...........SUNRISE 537 AM PDT SUNSET 835 PM PDT
MAY 12 2025...........SUNRISE 536 AM PDT SUNSET 836 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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