MERCER ISLAND, WASHINGTON

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

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DAILY WEATHER AVERAGE - 31 MARCH

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	9.2 ^°C	12.8 ^°C	5.9 ^°C	20 ^°C (2013)	2.8 ^°C (2008)
Dewpoint	4.1 ^°C	6.4 ^°C	1.7 ^°C	12 ^°C (2001)	-2.2 ^°C (1995)
Humidity	72.6 ^%	90.9 ^%	51.3 ^%		34 ^% (1995)
Barometer	1016.6 ^hPa	1020 ^hPa	1013.2 ^hPa	1036.2 ^hPa (2000)	997.3 ^hPa (2012)
Wind Speed	10.3 ^km/h	21.2 ^km/h		35.2 ^km/h (2001)
Wind Gust		38.3 ^km/h		51.8 ^km/h (2011)
Precipitation	4.32 ^mm			14.73 ^mm (2007)

Weather Element	Average
Visibility	16.9 ^km
Wind Direction	SE (140.3 °)

Weather Element	Total
Heating Degree Days	8.9 (Base 18.3)
Growing Degree Days	1.6 (Base 10)

Total Years on Record: 21

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