625
CDUS46 KSEW 200927
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
127 AM PST FRI DEC 20 2024
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR DECEMBER 19 2024...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1945 TO 2024
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 55 1134 AM 56 1969 46 9 52
1994
MINIMUM 44 533 AM 17 1949 37 7 47
1990
AVERAGE 50 42 8 50
PRECIPITATION (IN)
YESTERDAY 0.21 1.32 2019 0.18 0.03 0.12
MONTH TO DATE 2.91 3.50 -0.59 6.87
SINCE OCT 1 10.81 13.72 -2.91 15.54
SINCE JAN 1 29.59 37.12 -7.53 33.36
SNOWFALL (IN)
YESTERDAY 0.0 3.3 1964 0.0
MONTH TO DATE 0.0 0.0
SINCE OCT 1 0.0 0.0
SINCE JUL 1 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 15 23 -8 15
MONTH TO DATE 421 430 -9 372
SINCE DEC 1 421 430 -9 372
SINCE JUL 1 1462 1491 -29 1375
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 315 263 52 378
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WIND (MPH)
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION S (160)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION S (170)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION E (90)
AVERAGE WIND SPEED 4.5
SKY COVER
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 900 PM
LOWEST 56 900 AM
AVERAGE 75
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 46 59 2018
MINIMUM TEMPERATURE (F) 37 14 1990
2008
SUNRISE AND SUNSET
DECEMBER 20 2024......SUNRISE 754 AM PST SUNSET 421 PM PST
DECEMBER 21 2024......SUNRISE 754 AM PST SUNSET 421 PM PST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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