210
CDUS46 KSEW 130927
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
127 AM PST WED DEC 13 2023
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR DECEMBER 12 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
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 44 311 PM 60 1960 47 -3 43
1995
MINIMUM 34 1154 PM 22 1972 37 -3 38
AVERAGE 39 42 -3 41
PRECIPITATION (IN)
YESTERDAY 0.00 2.19 2010 0.18 -0.18 0.18
MONTH TO DATE 6.56 2.25 4.31 2.23
SINCE OCT 1 15.23 12.47 2.76 9.57
SINCE JAN 1 33.05 35.87 -2.82 34.95
SNOWFALL (IN)
YESTERDAY 0.0 2.6 1975 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 26 23 3 24
MONTH TO DATE 231 269 -38 316
SINCE DEC 1 231 269 -38 316
SINCE JUL 1 1234 1330 -96 1266
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 2 RESULTANT WIND DIRECTION NE (50)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION NE (50)
HIGHEST GUST SPEED 13 HIGHEST GUST DIRECTION N (20)
AVERAGE WIND SPEED 3.9
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
FOG W/VISIBILITY <= 1/4 MILE
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 800 AM
LOWEST 86 400 PM
AVERAGE 93
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 47 59 1952
MINIMUM TEMPERATURE (F) 37 19 1972
SUNRISE AND SUNSET
DECEMBER 13 2023......SUNRISE 748 AM PST SUNSET 418 PM PST
DECEMBER 14 2023......SUNRISE 749 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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