966
CDUS46 KSEW 190222
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
622 PM PST WED DEC 18 2024
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR DECEMBER 18 2024...
VALID TODAY AS OF 0500 PM LOCAL TIME.
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)
TODAY
MAXIMUM 55R 1246 AM 54 2003 47 8 50
2004
2018
MINIMUM 49 918 AM 18 1964 37 12 38
AVERAGE 52 42 10 44
PRECIPITATION (IN)
TODAY 0.33 1.23 1960 0.18 0.15 0.05
MONTH TO DATE 2.70 3.32 -0.62 6.75
SINCE OCT 1 10.60 13.54 -2.94 15.42
SINCE JAN 1 29.38 36.94 -7.56 33.24
SNOWFALL (IN)
TODAY 0.0 5.1 1968 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
TODAY 13 23 -10 21
MONTH TO DATE 405 407 -2 357
SINCE DEC 1 405 407 -2 357
SINCE JUL 1 1446 1468 -22 1360
COOLING
TODAY 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
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 17 RESULTANT WIND DIRECTION SW (210)
HIGHEST WIND SPEED 35 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 56 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 18.1
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 200 AM
LOWEST 71 100 PM
AVERAGE 82
......................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 46 56 1969
1994
MINIMUM TEMPERATURE (F) 37 17 1949
1990
SUNRISE AND SUNSET
DECEMBER 18 2024......SUNRISE 753 AM PST SUNSET 420 PM PST
DECEMBER 19 2024......SUNRISE 753 AM PST SUNSET 420 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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