MERCER ISLAND, WASHINGTON

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

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DAILY WEATHER AVERAGE - 19 OCTOBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	12.2 ^°C	15.8 ^°C	8.9 ^°C	23.3 ^°C (2014)	3.9 ^°C (2008)
Dewpoint	8.7 ^°C	10.4 ^°C	6.6 ^°C	14.4 ^°C (2003)	-0.6 ^°C (1995)
Humidity	80.5 ^%	95 ^%	61.7 ^%		24 ^% (1995)
Barometer	1016.6 ^hPa	1020 ^hPa	1013.5 ^hPa	1032.8 ^hPa (1998)	991.9 ^hPa (2004)
Wind Speed	8.9 ^km/h	17.9 ^km/h		27.8 ^km/h (1995)
Wind Gust		34.6 ^km/h		44.4 ^km/h (2007)
Precipitation	5.59 ^mm			19.56 ^mm (2007)

Weather Element	Average
Visibility	16.6 ^km
Wind Direction	ESE (127.3 °)

Weather Element	Total
Heating Degree Days	6 (Base 18.3)
Growing Degree Days	3 (Base 10)

Total Years on Record: 21

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