RIVERHEAD, NEW YORK

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

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DAILY WEATHER AVERAGE - 18 OCTOBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	12.1 ^°C	16.4 ^°C	5.4 ^°C	22.8 ^°C (2006)	-1.7 ^°C (2001)
Dewpoint	6.9 ^°C	10.6 ^°C	2.4 ^°C	19 ^°C (1999)	-7.8 ^°C (2011)
Humidity	73.7 ^%	92.1 ^%	51.4 ^%		30 ^% (2011)
Barometer	1015.9 ^hPa	1019.6 ^hPa	1012.9 ^hPa	1028.8 ^hPa (2015)	1001 ^hPa (1999)
Wind Speed	15 ^km/h	28.3 ^km/h		42.6 ^km/h (1999)
Wind Gust		39.9 ^km/h		57.5 ^km/h (2009)
Precipitation	7.87 ^mm			28.7 ^mm (1999)

Weather Element	Average
Visibility	15.1 ^km
Wind Direction	S (181.4 °)

Weather Element	Total
Heating Degree Days	7.8 (Base 18.3)
Growing Degree Days	4.6 (Base 10)

Total Years on Record: 20

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