529
CDUS46 KSEW 090218
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
618 PM PST FRI DEC 08 2023
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR DECEMBER 8 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 44 1141 AM 60 2015 48 -4 43
MINIMUM 40 459 PM 13 1972 37 3 37
AVERAGE 42 42 0 40
PRECIPITATION (IN)
TODAY 0.00 2.13 2015 0.19 -0.19 0.10
MONTH TO DATE 5.78 1.52 4.26 1.00
SINCE OCT 1 14.45 11.74 2.71 8.34
SINCE JAN 1 32.27 35.14 -2.87 33.72
SNOWFALL (IN)
TODAY 0.0 2.2 1971 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 0
DEGREE DAYS
HEATING
TODAY 23 23 0 25
MONTH TO DATE 143 177 -34 222
SINCE DEC 1 143 177 -34 222
SINCE JUL 1 1146 1238 -92 1172
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 5 RESULTANT WIND DIRECTION S (200)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION SW (220)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 5.9
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 89 700 AM
LOWEST 76 100 PM
AVERAGE 83
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 47 61 2014
MINIMUM TEMPERATURE (F) 37 18 2009
SUNRISE AND SUNSET
DECEMBER 8 2023......SUNRISE 744 AM PST SUNSET 418 PM PST
DECEMBER 9 2023......SUNRISE 745 AM PST SUNSET 418 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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