511
CDUS46 KSEW 200117
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
617 PM PDT WED AUG 19 2026
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR AUGUST 19 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 83 402 PM 95 2016 77 6 75
MINIMUM 55 439 AM 47 1945 57 -2 59
1947
AVERAGE 69 67 2 67
PRECIPITATION (IN)
TODAY 0.00 0.88 1965 0.03 -0.03 0.00
MONTH TO DATE T 0.51 -0.51 1.14
SINCE OCT 1 36.35 37.27 -0.92 28.91
SINCE JAN 1 19.57 21.33 -1.76 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 12 -11 2
SINCE JUN 1 116 161 -45 117
SINCE JUL 1 21 43 -22 23
COOLING
TODAY 4 3 1 2
MONTH TO DATE 62 70 -8 63
SINCE JUN 1 220 195 25 224
SINCE JAN 1 230 205 25 227
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WIND (MPH)
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION SW (240)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION NW (310)
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 6.2
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 400 AM
LOWEST 33 400 PM
AVERAGE 63
......................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 77 91 2016
MINIMUM TEMPERATURE (F) 57 45 1945
SUNRISE AND SUNSET
AUGUST 19 2026........SUNRISE 611 AM PDT SUNSET 814 PM PDT
AUGUST 20 2026........SUNRISE 612 AM PDT SUNSET 812 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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