602
CDUS46 KSEW 300829
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
129 AM PDT TUE JUN 30 2026
...............................
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR JUNE 29 2026
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)
YESTERDAY
MAXIMUM 64 146 PM 93 1987 74 -10 80
MINIMUM 53 654 AM 45 1949 55 -2 55
AVERAGE 59 64 -5 68
PRECIPITATION (IN)
YESTERDAY 0.00 0.64 1992 0.04 -0.04 0.00
MONTH TO DATE 1.34 1.42 -0.08 0.42
SINCE OCT 1 35.93 36.13 -0.20 27.76
SINCE JAN 1 19.15 20.19 -1.04 14.36
SNOWFALL (IN)
YESTERDAY 0.0 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 0
DEGREE DAYS
HEATING
YESTERDAY 6 2 4 0
MONTH TO DATE 88 115 -27 94
SINCE JUN 1 88 115 -27 94
SINCE JUL 1 4003 4373 -370 4421
COOLING
YESTERDAY 0 2 -2 3
MONTH TO DATE 71 34 37 33
SINCE JUN 1 71 34 37 33
SINCE JAN 1 81 44 37 36
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WIND (MPH)
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION SW (210)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION S (180)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION S (200)
AVERAGE WIND SPEED 7.5
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 89 700 AM
LOWEST 62 100 PM
AVERAGE 76
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 74 96 1995
MINIMUM TEMPERATURE (F) 55 43 1949
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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