CHATHAM, MASSACHUSETTS

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

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DAILY WEATHER AVERAGE - 20 OCTOBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	12.4 ^°C	15.4 ^°C	7.8 ^°C	21 ^°C (2011)	2.2 ^°C (2009)
Dewpoint	8.1 ^°C	11.7 ^°C	3.7 ^°C	19.4 ^°C (2011)	-2.8 ^°C (2013)
Humidity	76.8 ^%	91.6 ^%	57.9 ^%		34 ^% (2000)
Barometer	1013.2 ^hPa	1016.9 ^hPa	1010.2 ^hPa	1029.8 ^hPa (1999)	990.9 ^hPa (2006)
Wind Speed	13.8 ^km/h	25.1 ^km/h		53.8 ^km/h (1996)
Wind Gust		42.2 ^km/h		70.3 ^km/h (1996)
Precipitation	27.18 ^mm			77.72 ^mm (1996)

Weather Element	Average
Visibility	14.2 ^km
Wind Direction	SE (139.2 °)

Weather Element	Total
Heating Degree Days	7.1 (Base 18.3)
Growing Degree Days	3.2 (Base 10)

Total Years on Record: 18

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