Climatological Report (Daily)
Issued by NWS
Issued by NWS
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761
CDUS46 KSEW 020827
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
127 AM PDT TUE SEP 02 2025
...................................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 1 2025...
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)
YESTERDAY
MAXIMUM 71 450 PM 91 1987 75 -4 82
MINIMUM 58 633 AM 46 1973 56 2 61
AVERAGE 65 66 -1 72
PRECIPITATION (IN)
YESTERDAY 0.00 0.55 1978 0.04 -0.04 0.00
MONTH TO DATE 0.00 0.04 -0.04 0.00
SINCE OCT 1 28.91 37.77 -8.86 35.31
SINCE JAN 1 15.51 21.83 -6.32 18.16
SNOWFALL (IN)
YESTERDAY 0.0 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
YESTERDAY 0 2 -2 0
MONTH TO DATE 0 2 -2 0
SINCE SEP 1 0 2 -2 0
SINCE JUL 1 24 57 -33 38
COOLING
YESTERDAY 0 2 -2 7
MONTH TO DATE 0 2 -2 7
SINCE SEP 1 0 2 -2 7
SINCE JAN 1 294 235 59 280
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION SW (230)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION S (200)
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION S (200)
AVERAGE WIND SPEED 4.7
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 200 AM
LOWEST 63 300 PM
AVERAGE 78
..........................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 75 98 1988
MINIMUM TEMPERATURE (F) 56 41 1960
SUNRISE AND SUNSET
SEPTEMBER 2 2025.....SUNRISE 630 AM PDT SUNSET 747 PM PDT
SEPTEMBER 3 2025.....SUNRISE 631 AM PDT SUNSET 745 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$