SEA-TAC, WASHINGTON

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

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DAILY WEATHER AVERAGE - 28 AUGUST

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	18.7 ^°C	24.2 ^°C	13.9 ^°C	30.6 ^°C (2002)	11.1 ^°C (2010)
Dewpoint	12.1 ^°C	13.9 ^°C	9.8 ^°C	16.7 ^°C (2013)	1.1 ^°C (2006)
Humidity	68 ^%	89.1 ^%	45.5 ^%		20 ^% (2006)
Barometer	1016.6 ^hPa	1018.3 ^hPa	1014.2 ^hPa	1023.7 ^hPa (2004)	1005.8 ^hPa (2015)
Wind Speed	10 ^km/h	18.7 ^km/h		25.9 ^km/h (2008)
Wind Gust		35.7 ^km/h		46.3 ^km/h (2008)
Precipitation	5.59 ^mm			12.19 ^mm (2005)

Weather Element	Average
Visibility	16.9 ^km
Wind Direction	SSE (156.8 °)

Total Years on Record: 20

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