SEATTLE, WASHINGTON

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

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DAILY WEATHER AVERAGE - 28 APRIL

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	11.8 ^°C	16 ^°C	7.8 ^°C	23 ^°C (1998)	3.9 ^°C (1999)
Dewpoint	5.7 ^°C	8.2 ^°C	2.9 ^°C	11.1 ^°C (2008)	-4.4 ^°C (2007)
Humidity	69 ^%	89.5 ^%	45.8 ^%		27 ^% (2007)
Barometer	1018.6 ^hPa	1021.7 ^hPa	1015.2 ^hPa	1033.5 ^hPa (1996)	1001.7 ^hPa (2010)
Wind Speed	10.5 ^km/h	20.1 ^km/h		31.5 ^km/h (2001)
Wind Gust		36.2 ^km/h		40.7 ^km/h (2011)
Precipitation	4.32 ^mm			11.68 ^mm (2010)

Weather Element	Average
Visibility	18.2 ^km
Wind Direction	SSE (153 °)

Weather Element	Total
Heating Degree Days	6.5 (Base 18.3)
Growing Degree Days	3.1 (Base 10)

Total Years on Record: 21

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