552
CDUS46 KSEW 280118
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
618 PM PDT THU AUG 27 2026
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR AUGUST 27 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 74 342 PM 88 1986 76 -2 75
1994
2009
MINIMUM 61 559 AM 44 1952 56 5 61
AVERAGE 68 66 2 68
PRECIPITATION (IN)
TODAY 0.00 0.76 1951 0.04 -0.04 T
MONTH TO DATE T 0.81 -0.81 1.14
SINCE OCT 1 36.35 37.57 -1.22 28.91
SINCE JAN 1 19.57 21.63 -2.06 15.51
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 1 20 -19 2
SINCE JUN 1 116 169 -53 117
SINCE JUL 1 21 51 -30 23
COOLING
TODAY 3 2 1 3
MONTH TO DATE 98 90 8 122
SINCE JUN 1 256 215 41 283
SINCE JAN 1 266 225 41 286
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 10 RESULTANT WIND DIRECTION SW (210)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION S (200)
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 10.4
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 83 500 AM
LOWEST 51 300 PM
AVERAGE 67
......................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 76 95 1967
MINIMUM TEMPERATURE (F) 56 46 1952
SUNRISE AND SUNSET
AUGUST 27 2026........SUNRISE 622 AM PDT SUNSET 759 PM PDT
AUGUST 28 2026........SUNRISE 623 AM PDT SUNSET 757 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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