BROOKHAVEN, NEW YORK

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Elevation: 21 meters Latitude: 40 49N Longitude: 072 51W

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DAILY WEATHER AVERAGE - 20 DECEMBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	1.6 ^°C	5.1 ^°C	-2.3 ^°C	16 ^°C (2002)	-11.7 ^°C (2004)
Dewpoint	-4.2 ^°C	-0.7 ^°C	-8.6 ^°C	14 ^°C (2002)	-22.2 ^°C (2011)
Humidity	68.6 ^%	84.8 ^%	49.7 ^%		30 ^% (2011)
Barometer	1015.6 ^hPa	1021 ^hPa	1010.8 ^hPa	1033.5 ^hPa (2015)	993.6 ^hPa (2002)
Wind Speed	16.3 ^km/h	29.1 ^km/h		44.4 ^km/h (2002)
Wind Gust		44.4 ^km/h		59.2 ^km/h (2002)
Precipitation	12.45 ^mm			64.77 ^mm (2002)

Weather Element	Average
Visibility	12.7 ^km
Wind Direction	WSW (242.3 °)

Weather Element	Total
Heating Degree Days	17 (Base 18.3)
Growing Degree Days	0.8 (Base 10)

Total Years on Record: 16

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