421
CDUS46 KSEW 010126
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
626 PM PDT THU JUL 31 2025
...............................
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR JULY 31 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 80 413 PM 95 2022 79 1 80
MINIMUM 60 546 AM 47 1954 58 2 59
AVERAGE 70 68 2 70
PRECIPITATION (IN)
TODAY 0.00 0.26 1955 0.02 -0.02 T
MONTH TO DATE 0.01 0.60 -0.59 0.16
SINCE OCT 1 27.77 36.76 -8.99 33.65
SINCE JAN 1 14.37 20.82 -6.45 16.50
SNOWFALL (IN)
TODAY 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 0
DEGREE DAYS
HEATING
TODAY 0 0 0 0
MONTH TO DATE 21 36 -15 7
SINCE JUN 1 115 154 -39 139
SINCE JUL 1 21 36 -15 7
COOLING
TODAY 5 4 1 5
MONTH TO DATE 119 96 23 164
SINCE JUN 1 161 125 36 183
SINCE JAN 1 164 135 29 190
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WIND (MPH)
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION W (270)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION N (10)
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 5.5
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 81 400 AM
LOWEST 45 400 PM
AVERAGE 63
......................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 79 92 1949
2015
MINIMUM TEMPERATURE (F) 58 48 1945
SUNRISE AND SUNSET
JULY 31 2025..........SUNRISE 547 AM PDT SUNSET 844 PM PDT
AUGUST 1 2025........SUNRISE 548 AM PDT SUNSET 842 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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