904
CDUS46 KSEW 180831
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
131 AM PDT TUE MAR 18 2025
...............................
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR MARCH 17 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 51 319 PM 71 1947 54 -3 71
MINIMUM 35 1159 PM 27 1951 40 -5 47
1955
AVERAGE 43 47 -4 59
PRECIPITATION (IN)
YESTERDAY 0.15 1.05 1950 0.13 0.02 0.00
MONTH TO DATE 2.51 2.36 0.15 1.14
SINCE OCT 1 21.31 27.84 -6.53 28.65
SINCE JAN 1 7.91 11.90 -3.99 11.50
SNOWFALL (IN)
YESTERDAY 0.0 T 1996 0.0
2009
2012
MONTH TO DATE 0.0 0.3
SINCE OCT 1 2.3 0.3
SINCE JUL 1 2.3 0.3
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 22 18 4 6
MONTH TO DATE 337 321 16 345
SINCE MAR 1 337 321 16 345
SINCE JUL 1 3494 3368 126 3256
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 4 RESULTANT WIND DIRECTION S (190)
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 9.0
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 400 PM
LOWEST 54 200 PM
AVERAGE 74
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 55 76 2019
MINIMUM TEMPERATURE (F) 40 29 1954
SUNRISE AND SUNSET
MARCH 18 2025.........SUNRISE 715 AM PDT SUNSET 720 PM PDT
MARCH 19 2025.........SUNRISE 713 AM PDT SUNSET 721 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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