912
CDUS46 KSEW 140134
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
634 PM PDT SUN SEP 13 2026
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 13 2026...
VALID TODAY AS OF 0500 PM LOCAL TIME.
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)
TODAY
MAXIMUM 60 459 PM 87 1999 73 -13 75
MINIMUM 54 1004 AM 39 1952 54 0 57
AVERAGE 57 63 -6 66
PRECIPITATION (IN)
TODAY 0.55R 0.51 1955 0.05 0.50 0.00
MONTH TO DATE 1.02 0.59 0.43 0.06
SINCE OCT 1 37.93 38.32 -0.39 28.97
SINCE JAN 1 21.15 22.38 -1.23 15.57
SNOWFALL (IN)
TODAY 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
TODAY 8 3 5 0
MONTH TO DATE 37 27 10 5
SINCE SEP 1 37 27 10 5
SINCE JUL 1 62 82 -20 29
COOLING
TODAY 0 1 -1 1
MONTH TO DATE 1 22 -21 22
SINCE SEP 1 1 22 -21 22
SINCE JAN 1 266 255 11 316
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 9 RESULTANT WIND DIRECTION S (180)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 9.8
SKY COVER
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 500 AM
LOWEST 87 200 PM
AVERAGE 92
......................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 72 93 1979
MINIMUM TEMPERATURE (F) 54 46 1947
1955
1986
SUNRISE AND SUNSET
SEPTEMBER 13 2026.....SUNRISE 644 AM PDT SUNSET 725 PM PDT
SEPTEMBER 14 2026.....SUNRISE 646 AM PDT SUNSET 723 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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