CHATHAM, MASSACHUSETTS

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Elevation: 20 meters Latitude: 41 41N Longitude: 069 59W

WEATHER

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DAILY WEATHER AVERAGE - 20 MAY

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	12.7 ^°C	16.7 ^°C	9.3 ^°C	21 ^°C (2011)	4.4 ^°C (2002)
Dewpoint	8.7 ^°C	11.4 ^°C	5.3 ^°C	16.7 ^°C (2013)	-1.7 ^°C (2012)
Humidity	78.7 ^%	95.1 ^%	55.4 ^%		31 ^% (2012)
Barometer	1014.9 ^hPa	1017.6 ^hPa	1012.5 ^hPa	1028.4 ^hPa (2009)	993.6 ^hPa (2008)
Wind Speed	11.6 ^km/h	20.8 ^km/h		31.5 ^km/h (2006)
Wind Gust		34.4 ^km/h		42.6 ^km/h (2006)
Precipitation	18.8 ^mm			32.77 ^mm (1999)

Weather Element	Average
Visibility	13.5 ^km
Wind Direction	SSE (147.3 °)

Weather Element	Total
Heating Degree Days	5.3 (Base 18.3)
Growing Degree Days	3.6 (Base 10)

Total Years on Record: 19

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