587
CDUS46 KSEW 310116
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
616 PM PDT THU JUL 30 2026
...............................
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR JULY 30 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 79 458 PM 96 2009 79 0 85
MINIMUM 54 522 AM 48 1951 58 -4 58
AVERAGE 67 68 -1 72
PRECIPITATION (IN)
TODAY 0.00 0.39 1955 0.02 -0.02 0.00
MONTH TO DATE 0.42 0.58 -0.16 0.01
SINCE OCT 1 36.35 36.74 -0.39 27.77
SINCE JAN 1 19.57 20.80 -1.23 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 1 -1 0
MONTH TO DATE 20 36 -16 21
SINCE JUN 1 115 154 -39 115
SINCE JUL 1 20 36 -16 21
COOLING
TODAY 2 4 -2 7
MONTH TO DATE 82 92 -10 114
SINCE JUN 1 153 121 32 156
SINCE JAN 1 163 131 32 159
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WIND (MPH)
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION SW (220)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION S (200)
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION W (250)
AVERAGE WIND SPEED 4.7
SKY COVER
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 500 AM
LOWEST 33 400 PM
AVERAGE 62
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 79 95 2022
MINIMUM TEMPERATURE (F) 58 47 1954
SUNRISE AND SUNSET
JULY 30 2026..........SUNRISE 545 AM PDT SUNSET 846 PM PDT
JULY 31 2026..........SUNRISE 546 AM PDT SUNSET 844 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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