947
CDUS46 KSEW 100945
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
145 AM PST TUE DEC 10 2024
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR DECEMBER 9 2024...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1945 TO 2024
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 48 237 PM 61 2014 47 1 44
MINIMUM 36 1153 PM 18 2009 37 -1 35
AVERAGE 42 42 0 40
PRECIPITATION (IN)
YESTERDAY 0.00 1.78 1956 0.18 -0.18 0.64
MONTH TO DATE 0.59 1.70 -1.11 6.42
SINCE OCT 1 8.49 11.92 -3.43 15.09
SINCE JAN 1 27.27 35.32 -8.05 32.91
SNOWFALL (IN)
YESTERDAY 0.0 T 1978 0.0
2016
MONTH TO DATE 0.0 0.0
SINCE OCT 1 0.0 0.0
SINCE JUL 1 0.0 0.0
SNOW DEPTH MM
DEGREE DAYS
HEATING
YESTERDAY 23 23 0 25
MONTH TO DATE 220 200 20 169
SINCE DEC 1 220 200 20 169
SINCE JUL 1 1261 1261 0 1172
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 315 263 52 378
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WIND (MPH)
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION NE (60)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION NE (30)
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION N (340)
AVERAGE WIND SPEED 5.6
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 1100 PM
LOWEST 71 100 PM
AVERAGE 84
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 47 66 2014
MINIMUM TEMPERATURE (F) 37 16 2009
SUNRISE AND SUNSET
DECEMBER 10 2024......SUNRISE 746 AM PST SUNSET 418 PM PST
DECEMBER 11 2024......SUNRISE 747 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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