061
CDUS46 KSEW 170827
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
127 AM PDT THU JUL 17 2025
...............................
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR JULY 16 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 94 322 PM 98 1979 78 16 88
MINIMUM 66 1159 PM 50 1953 57 9 58
1968
AVERAGE 80 67 13 73
PRECIPITATION (IN)
YESTERDAY 0.00 0.65 2001 0.02 -0.02 0.00
MONTH TO DATE T 0.36 -0.36 0.00
SINCE OCT 1 27.76 36.52 -8.76 33.49
SINCE JAN 1 14.36 20.58 -6.22 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 5 22 -17 2
SINCE JUN 1 99 140 -41 134
SINCE JUL 1 5 22 -17 2
COOLING
YESTERDAY 15 3 12 8
MONTH TO DATE 81 38 43 118
SINCE JUN 1 123 67 56 137
SINCE JAN 1 126 77 49 144
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WIND (MPH)
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION SW (240)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION SW (220)
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION S (200)
AVERAGE WIND SPEED 5.7
SKY COVER
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 63 600 AM
LOWEST 24 200 PM
AVERAGE 44
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 78 96 1979
MINIMUM TEMPERATURE (F) 57 48 1950
1953
1955
SUNRISE AND SUNSET
JULY 17 2025..........SUNRISE 530 AM PDT SUNSET 900 PM PDT
JULY 18 2025..........SUNRISE 531 AM PDT SUNSET 859 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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