867
CDUS46 KSEW 290827
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
127 AM PDT TUE JUL 29 2025
...............................
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR JULY 28 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 82 502 PM 97 1958 79 3 69
1998
2009
MINIMUM 54 409 AM 47 1953 58 -4 56
AVERAGE 68 68 0 63
PRECIPITATION (IN)
YESTERDAY 0.00 0.22 1993 0.02 -0.02 0.00
MONTH TO DATE 0.01 0.55 -0.54 T
SINCE OCT 1 27.77 36.71 -8.94 33.49
SINCE JAN 1 14.37 20.77 -6.40 16.34
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 0
DEGREE DAYS
HEATING
YESTERDAY 0 1 -1 2
MONTH TO DATE 21 34 -13 6
SINCE JUN 1 115 152 -37 138
SINCE JUL 1 21 34 -13 6
COOLING
YESTERDAY 3 4 -1 0
MONTH TO DATE 101 84 17 155
SINCE JUN 1 143 113 30 174
SINCE JAN 1 146 123 23 181
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WIND (MPH)
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION W (280)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION N (10)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION N (350)
AVERAGE WIND SPEED 5.0
SKY COVER
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 80 100 AM
LOWEST 27 500 PM
AVERAGE 54
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 79 103 2009
MINIMUM TEMPERATURE (F) 58 45 1954
SUNRISE AND SUNSET
JULY 29 2025..........SUNRISE 544 AM PDT SUNSET 847 PM PDT
JULY 30 2025..........SUNRISE 545 AM PDT SUNSET 845 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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