MERCER ISLAND, WASHINGTON

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Elevation: 69 meters Latitude: 47 32N Longitude: 122 18W

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DAILY WEATHER AVERAGE - 26 APRIL

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	11.9 ^°C	16.8 ^°C	7.3 ^°C	25.6 ^°C (2004)	2.7 ^°C (1996)
Dewpoint	5.6 ^°C	8.1 ^°C	2.8 ^°C	13.3 ^°C (2001)	-5 ^°C (2008)
Humidity	67.8 ^%	88.4 ^%	43 ^%		20 ^% (2008)
Barometer	1018.3 ^hPa	1022.4 ^hPa	1014.6 ^hPa	1048.1 ^hPa (1996)	995.9 ^hPa (2010)
Wind Speed	9.8 ^km/h	18.7 ^km/h		33.3 ^km/h (1996)
Wind Gust		33.8 ^km/h		44.4 ^km/h (1996)
Precipitation	4.83 ^mm			7.37 ^mm (2010)

Weather Element	Average
Visibility	20.3 ^km
Wind Direction	SSE (141 °)

Weather Element	Total
Heating Degree Days	6.3 (Base 18.3)
Growing Degree Days	3.2 (Base 10)

Total Years on Record: 21

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