BOSTON, MASSACHUSETTS

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Elevation: 1 meter Latitude: 42 22N Longitude: 071 02W

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DAILY WEATHER AVERAGE - 21 MAY

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	15.3 ^°C	19.9 ^°C	11.1 ^°C	32.8 ^°C (2009)	6.1 ^°C (2002)
Dewpoint	8.1 ^°C	10.8 ^°C	4.8 ^°C	19.4 ^°C (1996)	-2.8 ^°C (2009)
Humidity	66.4 ^%	83.5 ^%	48.1 ^%		12 ^% (2009)
Barometer	1013.5 ^hPa	1016.3 ^hPa	1010.8 ^hPa	1025.7 ^hPa (2012)	994.6 ^hPa (2008)
Wind Speed	17.7 ^km/h	30.4 ^km/h		51.8 ^km/h (2006)
Wind Gust		47.5 ^km/h		88.8 ^km/h (2006)
Precipitation	2.79 ^mm			7.87 ^mm (2005)

Weather Element	Average
Visibility	14.3 ^km
Wind Direction	SSW (189.6 °)

Total Years on Record: 20

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