526
CDUS46 KSEW 010117
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
617 PM PDT TUE JUN 30 2026
...............................
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR JUNE 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 64 453 PM 96 1995 74 -10 87
MINIMUM 52 700 AM 43 1949 55 -3 60
AVERAGE 58 64 -6 74
PRECIPITATION (IN)
TODAY T 0.84 1954 0.03 -0.03 0.00
MONTH TO DATE 1.34 1.45 -0.11 0.42
SINCE OCT 1 35.93 36.16 -0.23 27.76
SINCE JAN 1 19.15 20.22 -1.07 14.36
SNOWFALL (IN)
TODAY MM MM MM 0.0
MONTH TO DATE 0.0 0.0
SINCE OCT 1 3.0 2.3
SINCE JUL 1 3.0 2.3
SNOW DEPTH MM
DEGREE DAYS
HEATING
TODAY 7 2 5 0
MONTH TO DATE 95 117 -22 94
SINCE JUN 1 95 117 -22 94
SINCE JUL 1 4010 4375 -365 4421
COOLING
TODAY 0 2 -2 9
MONTH TO DATE 71 29 42 42
SINCE JUN 1 71 29 42 42
SINCE JAN 1 81 39 42 45
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WIND (MPH)
RESULTANT WIND SPEED 8 RESULTANT WIND DIRECTION SW (210)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 8.7
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 500 AM
LOWEST 56 400 PM
AVERAGE 75
......................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 74 94 2014
MINIMUM TEMPERATURE (F) 55 45 1948
1949
1973
SUNRISE AND SUNSET
JUNE 30 2026..........SUNRISE 516 AM PDT SUNSET 910 PM PDT
JULY 1 2026..........SUNRISE 516 AM PDT SUNSET 910 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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