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United States of America

SEA-TAC, WASHINGTON


Home > North America > United States > Washington
Elevation: 450 feet     Latitude: 47 27N     Longitude: 122 18W

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DAILY WEATHER AVERAGE - SEPTEMBER 1
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[ °C ]   °F
Weather ElementAvgAvg HighAvg LowRecord HighRecord Low
Temperature 62.8 °F 72.4 °F 55.2 °F 87.1 °F (2006) 46.4 °F (1999)
Dewpoint 51.3 °F 54.2 °F 46.9 °F 60.1 °F (1998) 26.1 °F (2006)
Humidity 69 % 88.9 % 45 % 13 % (2006)
Barometer 30.02 in 30.08 in 29.96 in 30.29 in (2008) 29.78 in (2000)
Wind Speed 7 mph 13.2 mph 19.6 mph (2015)
Wind Gust 22.7 mph 27.6 mph (2004)
Precipitation 0.26 in 0.50 in (2004)
Weather ElementAverage
Visibility10.9 mi
Wind DirectionSSE (156.7 °)
Weather ElementTotal
Heating Degree Days3.8 (Base 18.3)
Cooling Degree Days4.7 (Base 18.3)
Growing Degree Days13.8 (Base 10)
Total Years on Record: 21
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