BOSTON, MASSACHUSETTS

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

WEATHER

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DAILY WEATHER AVERAGE - 19 DECEMBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	1.4 ^°C	4.6 ^°C	-2.3 ^°C	10.6 ^°C (1996)	-9.4 ^°C (2008)
Dewpoint	-5.3 ^°C	-1.7 ^°C	-8.7 ^°C	8.9 ^°C (1996)	-23.9 ^°C (2009)
Humidity	63.1 ^%	78.6 ^%	48.8 ^%		26 ^% (2009)
Barometer	1014.9 ^hPa	1020.3 ^hPa	1009.8 ^hPa	1033.2 ^hPa (1999)	994.6 ^hPa (1996)
Wind Speed	17.5 ^km/h	28.8 ^km/h		55.5 ^km/h (2008)
Wind Gust		45.4 ^km/h		74 ^km/h (2008)
Precipitation	10.92 ^mm			26.67 ^mm (1996)

Weather Element	Average
Visibility	14.8 ^km
Wind Direction	SW (229.9 °)

Weather Element	Total
Heating Degree Days	17.2 (Base 18.3)

Total Years on Record: 21

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