303
CDUS46 KSEW 160216
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
616 PM PST FRI DEC 15 2023
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR DECEMBER 15 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 52 1225 PM 63 1980 47 5 41
MINIMUM 39 501 AM 19 2008 37 2 30
AVERAGE 46 42 4 36
PRECIPITATION (IN)
TODAY 0.00 1.60 1959 0.18 -0.18 0.00
MONTH TO DATE 6.70 2.79 3.91 2.23
SINCE OCT 1 15.37 13.01 2.36 9.57
SINCE JAN 1 33.19 36.41 -3.22 34.95
SNOWFALL (IN)
TODAY MM 1.2 1979 0.0
MONTH TO DATE 0.0 3.4
SINCE OCT 1 0.0 4.5
SINCE JUL 1 0.0 4.5
SNOW DEPTH MM
DEGREE DAYS
HEATING
TODAY 19 23 -4 29
MONTH TO DATE 291 338 -47 398
SINCE DEC 1 291 338 -47 398
SINCE JUL 1 1294 1399 -105 1348
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
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION S (160)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION SE (140)
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION SE (130)
AVERAGE WIND SPEED 3.9
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 500 AM
LOWEST 68 300 PM
AVERAGE 81
......................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 47 57 1974
MINIMUM TEMPERATURE (F) 37 10 1964
SUNRISE AND SUNSET
DECEMBER 15 2023......SUNRISE 750 AM PST SUNSET 419 PM PST
DECEMBER 16 2023......SUNRISE 751 AM PST SUNSET 419 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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