871
CDUS46 KSEW 010116
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
616 PM PDT FRI JUL 31 2026
...............................
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR JULY 31 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 84 425 PM 95 2022 79 5 80
MINIMUM 56 515 AM 47 1954 58 -2 60
AVERAGE 70 68 2 70
PRECIPITATION (IN)
TODAY 0.00 0.26 1955 0.02 -0.02 0.00
MONTH TO DATE 0.42 0.60 -0.18 0.01
SINCE OCT 1 36.35 36.76 -0.41 27.77
SINCE JAN 1 19.57 20.82 -1.25 14.37
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 0 0 0 0
MONTH TO DATE 20 36 -16 21
SINCE JUN 1 115 154 -39 115
SINCE JUL 1 20 36 -16 21
COOLING
TODAY 5 4 1 5
MONTH TO DATE 87 96 -9 119
SINCE JUN 1 158 125 33 161
SINCE JAN 1 168 135 33 164
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WIND (MPH)
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION W (280)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION W (280)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 4.5
SKY COVER
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 78 200 AM
LOWEST 28 300 PM
AVERAGE 53
......................................................
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 2026..........SUNRISE 546 AM PDT SUNSET 844 PM PDT
AUGUST 1 2026........SUNRISE 547 AM PDT SUNSET 843 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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