SEATTLE, WASHINGTON

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

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DAILY WEATHER AVERAGE - 21 APRIL

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	10.7 ^°C	15.4 ^°C	6.9 ^°C	20.6 ^°C (2009)	1.7 ^°C (2008)
Dewpoint	5.3 ^°C	7.3 ^°C	3 ^°C	9.4 ^°C (2009)	-2.8 ^°C (1996)
Humidity	71 ^%	89.4 ^%	48.7 ^%		34 ^% (1996)
Barometer	1018.3 ^hPa	1021.7 ^hPa	1015.2 ^hPa	1029.8 ^hPa (1995)	1004.7 ^hPa (2007)
Wind Speed	8.4 ^km/h	18.2 ^km/h		27.8 ^km/h (1996)
Wind Gust		28.6 ^km/h		29.6 ^km/h (2008)
Precipitation	4.57 ^mm			17.78 ^mm (2010)

Weather Element	Average
Visibility	20.1 ^km
Wind Direction	SE (129.9 °)

Weather Element	Total
Heating Degree Days	7.2 (Base 18.3)
Growing Degree Days	2.6 (Base 10)

Total Years on Record: 21

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