SEATTLE, WASHINGTON

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Elevation: 37 meters Latitude: 47 39N Longitude: 122 18W

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DAILY WEATHER AVERAGE - 15 SEPTEMBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	16.7 ^°C	21.2 ^°C	12.9 ^°C	30 ^°C (2014)	9 ^°C (2003)
Dewpoint	11.2 ^°C	12.7 ^°C	9.3 ^°C	16.1 ^°C (2010)	5 ^°C (2014)
Humidity	72.2 ^%	89.3 ^%	50.7 ^%		20 ^% (1995)
Barometer	1013.5 ^hPa	1015.6 ^hPa	1011.2 ^hPa	1021.7 ^hPa (2012)	999 ^hPa (1996)
Wind Speed	8.5 ^km/h	16.9 ^km/h		33.3 ^km/h (1996)
Wind Gust		38.3 ^km/h		40.7 ^km/h (2011)
Precipitation	6.86 ^mm			9.91 ^mm (2010)

Weather Element	Average
Visibility	17.1 ^km
Wind Direction	SSE (140.7 °)

Total Years on Record: 21

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