862
CDUS46 KSEW 120832
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
132 AM PDT MON MAY 12 2025
...............................
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR MAY 11 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 62 145 PM 87 1971 66 -4 83
MINIMUM 49 1159 PM 35 1953 48 1 55
AVERAGE 56 57 -1 69
PRECIPITATION (IN)
YESTERDAY 0.02 0.47 1954 0.06 -0.04 0.00
2017
MONTH TO DATE 0.02 0.74 -0.72 0.28
SINCE OCT 1 26.53 33.57 -7.04 31.04
SINCE JAN 1 13.13 17.63 -4.50 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 95 106 -11 111
SINCE MAR 1 1022 1075 -53 1080
SINCE JUL 1 4179 4122 57 3991
COOLING
YESTERDAY 0 0 0 4
MONTH TO DATE 0 0 0 7
SINCE MAR 1 0 1 -1 7
SINCE JAN 1 0 1 -1 7
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WIND (MPH)
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION S (180)
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION S (200)
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 6.4
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 1100 PM
LOWEST 46 200 PM
AVERAGE 68
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 66 82 2023
MINIMUM TEMPERATURE (F) 48 38 1964
1985
2011
SUNRISE AND SUNSET
MAY 12 2025...........SUNRISE 536 AM PDT SUNSET 836 PM PDT
MAY 13 2025...........SUNRISE 534 AM PDT SUNSET 838 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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