475
CDUS46 KSEW 060829
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
129 AM PDT SUN SEP 06 2026
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 5 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 70 514 PM 90 2024 75 -5 77
MINIMUM 52 417 AM 42 1947 55 -3 58
AVERAGE 61 65 -4 68
PRECIPITATION (IN)
YESTERDAY 0.00 1.09 2013 0.04 -0.04 0.00
MONTH TO DATE 0.36 0.21 0.15 0.00
SINCE OCT 1 37.27 37.94 -0.67 28.91
SINCE JAN 1 20.49 22.00 -1.51 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 4 2 2 0
MONTH TO DATE 16 10 6 0
SINCE SEP 1 16 10 6 0
SINCE JUL 1 41 65 -24 24
COOLING
YESTERDAY 0 2 -2 3
MONTH TO DATE 0 10 -10 18
SINCE SEP 1 0 10 -10 18
SINCE JAN 1 265 243 22 312
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WIND (MPH)
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION NE (50)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION N (360)
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION SE (130)
AVERAGE WIND SPEED 4.0
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 89 200 AM
LOWEST 52 700 PM
AVERAGE 71
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 74 90 2014
MINIMUM TEMPERATURE (F) 55 44 1947
SUNRISE AND SUNSET
SEPTEMBER 6 2026.....SUNRISE 635 AM PDT SUNSET 739 PM PDT
SEPTEMBER 7 2026.....SUNRISE 636 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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