931
CDUS46 KSEW 220217
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
617 PM PST THU DEC 21 2023
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR DECEMBER 21 2023...
VALID TODAY AS OF 0500 PM LOCAL TIME.
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1945 TO 2023
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 50 321 PM 59 2020 46 4 30
MINIMUM 42 722 AM 12 1990 37 5 20
AVERAGE 46 42 4 25
PRECIPITATION (IN)
TODAY 0.00 1.64 2020 0.19 -0.19 MM
MONTH TO DATE 6.87 3.87 3.00 3.09
SINCE OCT 1 15.54 14.09 1.45 10.43
SINCE JAN 1 33.36 37.49 -4.13 35.81
SNOWFALL (IN)
TODAY 0.0 3.0 2008 0.3
MONTH TO DATE 0.0 4.7
SINCE OCT 1 0.0 5.8
SINCE JUL 1 0.0 5.8
SNOW DEPTH MM
DEGREE DAYS
HEATING
TODAY 19 24 -5 40
MONTH TO DATE 411 477 -66 586
SINCE DEC 1 411 477 -66 586
SINCE JUL 1 1414 1538 -124 1536
COOLING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 378 263 115 394
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WIND (MPH)
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION SE (150)
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION SE (130)
HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION E (100)
AVERAGE WIND SPEED 3.2
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
FOG
FOG W/VISIBILITY <= 1/4 MILE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 500 AM
LOWEST 80 300 PM
AVERAGE 90
......................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 46 57 2005
MINIMUM TEMPERATURE (F) 37 14 1983
SUNRISE AND SUNSET
DECEMBER 21 2023......SUNRISE 754 AM PST SUNSET 421 PM PST
DECEMBER 22 2023......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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