MERCER ISLAND, WASHINGTON

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

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DAILY WEATHER AVERAGE - 23 AUGUST

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	18.9 ^°C	23.9 ^°C	14.4 ^°C	29 ^°C (1996)	11.1 ^°C (2003)
Dewpoint	11.1 ^°C	12.6 ^°C	9.2 ^°C	16.1 ^°C (2011)	3.9 ^°C (2015)
Humidity	62.9 ^%	82.3 ^%	42.6 ^%		27 ^% (2010)
Barometer	1016.6 ^hPa	1018.3 ^hPa	1014.6 ^hPa	1029.8 ^hPa (2010)	1007.5 ^hPa (2004)
Wind Speed	7.9 ^km/h	16.1 ^km/h		24.1 ^km/h (1996)
Wind Gust		33.3 ^km/h		35.2 ^km/h (2001)
Precipitation	2.29 ^mm			2.29 ^mm (2001)

Weather Element	Average
Visibility	20 ^km
Wind Direction	SE (133.8 °)

Total Years on Record: 20

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