842
CDUS46 KSEW 180830
CLISEW
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
130 AM PDT TUE AUG 18 2026
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..THE SEATTLE WA WFO CLIMATE SUMMARY FOR AUGUST 17 2026
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1894 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR LAST
VALUE (LST) VALUE YEAR
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TEMPERATURE (F)
YESTERDAY
MAXIMUM 80 MM 92 2023 79
MINIMUM 57 MM 47 2000 62
AVERAGE 69 71
PRECIPITATION (IN)
YESTERDAY 0.00 1.05 1980 0.00
MONTH TO DATE 0.02 1.16
SINCE OCT 1 33.00 31.73
SINCE JAN 1 16.77 15.59
SNOWFALL (IN)
YESTERDAY 0.0 0.0
MONTH TO DATE 0.0 0.0
SINCE OCT 1 0.2 2.6
SINCE JUL 1 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 0
MONTH TO DATE 3 1
SINCE JUN 1 82 79
SINCE JUL 1 15 8
COOLING
YESTERDAY 4 6
MONTH TO DATE 68 85
SINCE JUN 1 224 249
SINCE JAN 1 230 252
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WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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