360
CDUS46 KSEW 290826
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
126 AM PDT FRI AUG 29 2025
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR AUGUST 28 2025...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1945 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 82 431 PM 95 1967 76 6 70
MINIMUM 60 634 AM 46 1952 56 4 50
AVERAGE 71 66 5 60
PRECIPITATION (IN)
YESTERDAY 0.00 0.47 1975 0.04 -0.04 0.00
MONTH TO DATE 1.14 0.85 0.29 1.66
SINCE OCT 1 28.91 37.61 -8.70 35.31
SINCE JAN 1 15.51 21.67 -6.16 18.16
SNOWFALL (IN)
YESTERDAY 0.0 MM MM 0.0
MONTH TO DATE 0.0 0.0
SINCE OCT 1 2.3 0.3
SINCE JUL 1 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 1 -1 5
MONTH TO DATE 2 21 -19 31
SINCE JUN 1 117 170 -53 170
SINCE JUL 1 23 52 -29 38
COOLING
YESTERDAY 6 2 4 0
MONTH TO DATE 128 92 36 69
SINCE JUN 1 289 217 72 252
SINCE JAN 1 292 227 65 259
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WIND (MPH)
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION NW (300)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 5.0
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 500 AM
LOWEST 51 300 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 2025........SUNRISE 625 AM PDT SUNSET 754 PM PDT
AUGUST 30 2025........SUNRISE 626 AM PDT SUNSET 752 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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