618
CDUS46 KSEW 070116
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
616 PM PDT SAT SEP 06 2025
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 6 2025...
VALID TODAY AS OF 0500 PM LOCAL TIME.
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1945 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 73 339 PM 90 2014 74 -1 88
MINIMUM 58 705 AM 44 1947 55 3 61
AVERAGE 66 65 1 75
PRECIPITATION (IN)
TODAY 0.03 0.93 2009 0.05 -0.02 0.00
MONTH TO DATE 0.03 0.26 -0.23 T
SINCE OCT 1 28.94 37.99 -9.05 35.31
SINCE JAN 1 15.54 22.05 -6.51 18.16
SNOWFALL (IN)
TODAY MM MM MM 0.0
MONTH TO DATE 0.0 0.0
SINCE OCT 1 2.3 0.3
SINCE JUL 1 0.0 0.0
SNOW DEPTH MM
DEGREE DAYS
HEATING
TODAY 0 2 -2 0
MONTH TO DATE 0 12 -12 0
SINCE SEP 1 0 12 -12 0
SINCE JUL 1 24 67 -43 38
COOLING
TODAY 1 2 -1 10
MONTH TO DATE 19 12 7 30
SINCE SEP 1 19 12 7 30
SINCE JAN 1 313 245 68 303
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION S (200)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION SW (230)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 4.8
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
THUNDERSTORM
LIGHT RAIN
FOG
FOG W/VISIBILITY <= 1/4 MILE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 400 AM
LOWEST 66 300 PM
AVERAGE 82
......................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 74 94 1981
MINIMUM TEMPERATURE (F) 55 45 1960
1992
SUNRISE AND SUNSET
SEPTEMBER 6 2025.....SUNRISE 635 AM PDT SUNSET 739 PM PDT
SEPTEMBER 7 2025.....SUNRISE 637 AM PDT SUNSET 737 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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