358
CDUS46 KSEW 180928
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
128 AM PST WED DEC 18 2024
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR DECEMBER 17 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 56 1156 PM 57 1994 47 9 49
MINIMUM 42 1009 AM 11 1964 37 5 33
AVERAGE 49 42 7 41
PRECIPITATION (IN)
YESTERDAY 0.88 1.61 1979 0.17 0.71 0.00
MONTH TO DATE 2.37 3.14 -0.77 6.70
SINCE OCT 1 10.27 13.36 -3.09 15.37
SINCE JAN 1 29.05 36.76 -7.71 33.19
SNOWFALL (IN)
YESTERDAY 0.0 0.1 1992 0.0
MONTH TO DATE 0.0 0.0
SINCE OCT 1 0.0 0.0
SINCE JUL 1 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 16 23 -7 24
MONTH TO DATE 392 384 8 336
SINCE DEC 1 392 384 8 336
SINCE JUL 1 1433 1445 -12 1339
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 9 RESULTANT WIND DIRECTION SE (120)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION S (180)
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION E (70)
AVERAGE WIND SPEED 9.8
SKY COVER
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 900 PM
LOWEST 76 1200 AM
AVERAGE 85
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 47 54 2003
2004
2018
MINIMUM TEMPERATURE (F) 37 18 1964
SUNRISE AND SUNSET
DECEMBER 18 2024......SUNRISE 753 AM PST SUNSET 420 PM PST
DECEMBER 19 2024......SUNRISE 753 AM PST SUNSET 420 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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