773
CDUS46 KSEW 180926
CLISEW
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
126 AM PST THU DEC 18 2025
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..THE SEATTLE WA WFO CLIMATE SUMMARY FOR DECEMBER 17 2025
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1894 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR LAST
VALUE (LST) VALUE YEAR
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TEMPERATURE (F)
YESTERDAY
MAXIMUM 52 MM 57 1923 53
1994
MINIMUM 41 MM 14 1924 42
AVERAGE 47 48
PRECIPITATION (IN)
YESTERDAY 0.50 1.99 1933 0.99
MONTH TO DATE 5.42 2.95
SINCE OCT 1 15.02 12.38
SINCE JAN 1 31.58 35.74
SNOWFALL (IN)
YESTERDAY 0.0 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 18 17
MONTH TO DATE 258 376
SINCE DEC 1 258 376
SINCE JUL 1 1075 1314
COOLING
YESTERDAY 0 0
MONTH TO DATE 0 0
SINCE DEC 1 0 0
SINCE JAN 1 374 342
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WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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