Climatological Report (Daily)
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945
CDUS46 KSEW 310826
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
126 AM PDT MON AUG 31 2026
...................................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR AUGUST 30 2026...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1945 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 71 336 PM 90 2022 76 -5 70
MINIMUM 55 602 AM 45 1950 56 -1 57
AVERAGE 63 66 -3 64
PRECIPITATION (IN)
YESTERDAY 0.00 0.40 2015 0.04 -0.04 0.00
MONTH TO DATE 0.56 0.93 -0.37 1.14
SINCE OCT 1 36.91 37.69 -0.78 28.91
SINCE JAN 1 20.13 21.75 -1.62 15.51
SNOWFALL (IN)
YESTERDAY 0.0 MM MM 0.0
MONTH TO DATE 0.0 0.0
SINCE OCT 1 3.0 2.3
SINCE JUL 1 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 2 1 1 1
MONTH TO DATE 5 23 -18 3
SINCE JUN 1 120 172 -52 118
SINCE JUL 1 25 54 -29 24
COOLING
YESTERDAY 0 2 -2 0
MONTH TO DATE 97 96 1 129
SINCE JUN 1 255 221 34 290
SINCE JAN 1 265 231 34 293
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION SE (150)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION N (10)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 6.8
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 80 100 AM
LOWEST 41 400 PM
AVERAGE 61
..........................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 76 92 1987
MINIMUM TEMPERATURE (F) 56 46 1950
SUNRISE AND SUNSET
AUGUST 31 2026........SUNRISE 627 AM PDT SUNSET 751 PM PDT
SEPTEMBER 1 2026.....SUNRISE 628 AM PDT SUNSET 749 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$