SEA-TAC, WASHINGTON

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Elevation: 137 meters Latitude: 47 27N Longitude: 122 18W

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DAILY WEATHER AVERAGE - 1 SEPTEMBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	17.1 ^°C	22.4 ^°C	12.9 ^°C	30.6 ^°C (2006)	8 ^°C (1999)
Dewpoint	10.7 ^°C	12.3 ^°C	8.3 ^°C	15.6 ^°C (1998)	-3.3 ^°C (2006)
Humidity	69 ^%	88.9 ^%	45 ^%		13 ^% (2006)
Barometer	1016.6 ^hPa	1018.6 ^hPa	1014.6 ^hPa	1025.7 ^hPa (2008)	1008.5 ^hPa (2000)
Wind Speed	11.3 ^km/h	21.2 ^km/h		31.5 ^km/h (2015)
Wind Gust		36.5 ^km/h		44.4 ^km/h (2004)
Precipitation	6.6 ^mm			12.7 ^mm (2004)

Weather Element	Average
Visibility	17.5 ^km
Wind Direction	SSE (156.7 °)

Total Years on Record: 21

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