109
CDUS46 KSEW 280827
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
127 AM PDT MON JUL 28 2025
...............................
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR JULY 27 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 76 538 PM 95 1958 79 -3 78
1998
MINIMUM 55 259 AM 46 1956 58 -3 57
AVERAGE 66 68 -2 68
PRECIPITATION (IN)
YESTERDAY 0.00 0.30 1983 0.02 -0.02 0.00
MONTH TO DATE 0.01 0.53 -0.52 T
SINCE OCT 1 27.77 36.69 -8.92 33.49
SINCE JAN 1 14.37 20.75 -6.38 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 0
MONTH TO DATE 21 33 -12 4
SINCE JUN 1 115 151 -36 136
SINCE JUL 1 21 33 -12 4
COOLING
YESTERDAY 1 4 -3 3
MONTH TO DATE 98 80 18 155
SINCE JUN 1 140 109 31 174
SINCE JAN 1 143 119 24 181
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WIND (MPH)
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION SW (220)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 5.0
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 80 300 AM
LOWEST 40 500 PM
AVERAGE 60
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 79 97 1958
1998
2009
MINIMUM TEMPERATURE (F) 58 47 1953
SUNRISE AND SUNSET
JULY 28 2025..........SUNRISE 543 AM PDT SUNSET 848 PM PDT
JULY 29 2025..........SUNRISE 544 AM PDT SUNSET 847 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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