185
CDUS46 KSEW 070830
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
130 AM PDT MON SEP 07 2026
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 6 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 74 423 PM 90 2014 74 0 73
MINIMUM 53 407 AM 44 1947 55 -2 58
AVERAGE 64 65 -1 66
PRECIPITATION (IN)
YESTERDAY 0.00 0.93 2009 0.05 -0.05 0.03
MONTH TO DATE 0.36 0.26 0.10 0.03
SINCE OCT 1 37.27 37.99 -0.72 28.94
SINCE JAN 1 20.49 22.05 -1.56 15.54
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 1 2 -1 0
MONTH TO DATE 17 12 5 0
SINCE SEP 1 17 12 5 0
SINCE JUL 1 42 67 -25 24
COOLING
YESTERDAY 0 2 -2 1
MONTH TO DATE 0 12 -12 19
SINCE SEP 1 0 12 -12 19
SINCE JAN 1 265 245 20 313
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WIND (MPH)
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION N (340)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NW (330)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION N (340)
AVERAGE WIND SPEED 6.3
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 86 400 AM
LOWEST 40 300 PM
AVERAGE 63
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 74 94 1981
MINIMUM TEMPERATURE (F) 55 45 1960
1992
SUNRISE AND SUNSET
SEPTEMBER 7 2026.....SUNRISE 636 AM PDT SUNSET 737 PM PDT
SEPTEMBER 8 2026.....SUNRISE 638 AM PDT SUNSET 735 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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