MERCER ISLAND, WASHINGTON

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

WEATHER

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DAILY WEATHER AVERAGE - 24 APRIL

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	11.4 ^°C	15.9 ^°C	7 ^°C	22.2 ^°C (1999)	1.7 ^°C (2000)
Dewpoint	4.6 ^°C	6.9 ^°C	1.3 ^°C	13.3 ^°C (2001)	-5.6 ^°C (2006)
Humidity	66.4 ^%	87.7 ^%	44.3 ^%		16 ^% (2006)
Barometer	1019 ^hPa	1022 ^hPa	1014.9 ^hPa	1031.8 ^hPa (2002)	1005.1 ^hPa (2003)
Wind Speed	10.6 ^km/h	20.4 ^km/h		37 ^km/h (1996)
Wind Gust		38.1 ^km/h		46.3 ^km/h (2008)
Precipitation	3.3 ^mm			10.92 ^mm (2003)

Weather Element	Average
Visibility	18.3 ^km
Wind Direction	SSE (149.9 °)

Weather Element	Total
Heating Degree Days	6.9 (Base 18.3)
Growing Degree Days	2.7 (Base 10)

Total Years on Record: 20

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