050
CDUS46 KSEW 120930
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
130 AM PST TUE DEC 12 2023
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR DECEMBER 11 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 47 154 PM 58 2014 47 0 45
MINIMUM 42 1159 PM 21 2009 37 5 39
AVERAGE 45 42 3 42
PRECIPITATION (IN)
YESTERDAY 0.00 1.42 2010 0.18 -0.18 0.04
MONTH TO DATE 6.56 2.07 4.49 2.05
SINCE OCT 1 15.23 12.29 2.94 9.39
SINCE JAN 1 33.05 35.69 -2.64 34.77
SNOWFALL (IN)
YESTERDAY MM 4.2 1972 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
YESTERDAY 20 23 -3 23
MONTH TO DATE 205 246 -41 292
SINCE DEC 1 205 246 -41 292
SINCE JUL 1 1208 1307 -99 1242
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
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION N (10)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION N (20)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION N (20)
AVERAGE WIND SPEED 6.9
SKY COVER
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 400 AM
LOWEST 82 1100 PM
AVERAGE 88
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 47 60 1960
1995
MINIMUM TEMPERATURE (F) 37 22 1972
SUNRISE AND SUNSET
DECEMBER 12 2023......SUNRISE 747 AM PST SUNSET 418 PM PST
DECEMBER 13 2023......SUNRISE 748 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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