RIVERHEAD, NEW YORK

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Elevation: 20 meters Latitude: 40 50N Longitude: 072 37W

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DAILY WEATHER AVERAGE - 14 DECEMBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	2.8 ^°C	7.6 ^°C	-2.7 ^°C	16.7 ^°C (2015)	(2014)
Dewpoint	-0.6 ^°C	3.9 ^°C	-5.7 ^°C	16.1 ^°C (2015)	-18.3 ^°C (2005)
Humidity	80 ^%	92.5 ^%	62.4 ^%		41 ^% (2005)
Barometer	1017.9 ^hPa	1023.4 ^hPa	1012.2 ^hPa	1035.6 ^hPa (2008)	990.5 ^hPa (2002)
Wind Speed	15.6 ^km/h	28.8 ^km/h		46.3 ^km/h (1997)
Wind Gust		46 ^km/h		74 ^km/h (1997)
Precipitation	32 ^mm			55.63 ^mm (2003)

Weather Element	Average
Visibility	11.7 ^km
Wind Direction	SSE (158.1 °)

Weather Element	Total
Heating Degree Days	15.9 (Base 18.3)
Growing Degree Days	2.5 (Base 10)

Total Years on Record: 21

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