MERCER ISLAND, WASHINGTON

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

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DAILY WEATHER AVERAGE - 5 SEPTEMBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	17.4 ^°C	22.6 ^°C	13.3 ^°C	30 ^°C (1998)	8.9 ^°C (2002)
Dewpoint	11.1 ^°C	12.7 ^°C	9.3 ^°C	16 ^°C (2013)	6.1 ^°C (1998)
Humidity	68 ^%	86.5 ^%	46.5 ^%		29 ^% (1998)
Barometer	1017.9 ^hPa	1019.6 ^hPa	1016.3 ^hPa	1024.4 ^hPa (2000)	1007.5 ^hPa (2009)
Wind Speed	7.9 ^km/h	16.7 ^km/h		37 ^km/h (1996)
Wind Gust		31.4 ^km/h		42.6 ^km/h (2003)
Precipitation	5.59 ^mm			17.78 ^mm (2013)

Weather Element	Average
Visibility	18.2 ^km
Wind Direction	SSE (144.8 °)

Total Years on Record: 21

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