588
CDUS46 KSEW 090942
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
142 AM PST SAT DEC 09 2023
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...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR DECEMBER 8 2023...
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
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TEMPERATURE (F)
YESTERDAY
MAXIMUM 44 1141 AM 60 2015 48 -4 43
MINIMUM 37 1159 PM 13 1972 37 0 37
AVERAGE 41 42 -1 40
PRECIPITATION (IN)
YESTERDAY 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)
YESTERDAY 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
YESTERDAY 24 23 1 25
MONTH TO DATE 144 177 -33 222
SINCE DEC 1 144 177 -33 222
SINCE JUL 1 1147 1238 -91 1172
COOLING
YESTERDAY 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 4 RESULTANT WIND DIRECTION S (180)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION SW (220)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION SE (150)
AVERAGE WIND SPEED 5.7
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
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 TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 47 61 2014
MINIMUM TEMPERATURE (F) 37 18 2009
SUNRISE AND SUNSET
DECEMBER 9 2023......SUNRISE 745 AM PST SUNSET 418 PM PST
DECEMBER 10 2023......SUNRISE 746 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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