399
CDUS46 KSEW 250830
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
130 AM PDT TUE AUG 25 2026
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR AUGUST 24 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 81 345 PM 90 2025 77 4 90
MINIMUM 57 547 AM 45 1951 57 0 63
AVERAGE 69 67 2 77
PRECIPITATION (IN)
YESTERDAY 0.00 1.00 2004 0.04 -0.04 0.00
MONTH TO DATE T 0.69 -0.69 1.14
SINCE OCT 1 36.35 37.45 -1.10 28.91
SINCE JAN 1 19.57 21.51 -1.94 15.51
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 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 1 -1 0
MONTH TO DATE 1 17 -16 2
SINCE JUN 1 116 166 -50 117
SINCE JUL 1 21 48 -27 23
COOLING
YESTERDAY 4 2 2 12
MONTH TO DATE 85 84 1 98
SINCE JUN 1 243 209 34 259
SINCE JAN 1 253 219 34 262
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WIND (MPH)
RESULTANT WIND SPEED 11 RESULTANT WIND DIRECTION N (0)
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION N (20)
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION N (360)
AVERAGE WIND SPEED 11.0
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 600 AM
LOWEST 44 300 PM
AVERAGE 69
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 77 91 2016
MINIMUM TEMPERATURE (F) 57 45 1954
SUNRISE AND SUNSET
AUGUST 25 2026........SUNRISE 619 AM PDT SUNSET 803 PM PDT
AUGUST 26 2026........SUNRISE 620 AM PDT SUNSET 801 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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