328
CDUS46 KSEW 290828
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
128 AM PDT SAT AUG 29 2026
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...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR AUGUST 28 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 73 328 PM 95 1967 76 -3 82
MINIMUM 57 430 AM 46 1952 56 1 60
AVERAGE 65 66 -1 71
PRECIPITATION (IN)
YESTERDAY 0.00 0.47 1975 0.04 -0.04 0.00
MONTH TO DATE T 0.85 -0.85 1.14
SINCE OCT 1 36.35 37.61 -1.26 28.91
SINCE JAN 1 19.57 21.67 -2.10 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 21 -20 2
SINCE JUN 1 116 170 -54 117
SINCE JUL 1 21 52 -31 23
COOLING
YESTERDAY 0 2 -2 6
MONTH TO DATE 97 92 5 128
SINCE JUN 1 255 217 38 289
SINCE JAN 1 265 227 38 292
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WIND (MPH)
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION SW (230)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION N (10)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 4.9
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 700 AM
LOWEST 51 500 PM
AVERAGE 71
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 76 91 1974
MINIMUM TEMPERATURE (F) 56 44 1951
SUNRISE AND SUNSET
AUGUST 29 2026........SUNRISE 624 AM PDT SUNSET 755 PM PDT
AUGUST 30 2026........SUNRISE 626 AM PDT SUNSET 753 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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