ROCK HILL, SOUTH CAROLINA

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Elevation: 639 feet Latitude: 34 56N Longitude: 081 02W

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DAILY WEATHER AVERAGE - DECEMBER 18

[ °C ] °F

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	42.6 ^°F	53.3 ^°F	32.5 ^°F	72 ^°F (2006)	19.9 ^°F (2007)
Dewpoint	32.3 ^°F	38.5 ^°F	25.3 ^°F	61 ^°F (2008)	14 ^°F (1999)
Humidity	70.8 ^%	91.2 ^%	40.4 ^%		25 ^% (1999)
Barometer	30.12 ⁱⁿ	30.24 ⁱⁿ	30.02 ⁱⁿ	30.49 ⁱⁿ (2007)	29.59 ⁱⁿ (2009)
Wind Speed	4.3 ^mph	9.7 ^mph		17.3 ^mph (2015)
Wind Gust		23.7 ^mph		28.8 ^mph (2009)
Precipitation	0.59 ⁱⁿ			2.16 ⁱⁿ (2009)

Weather Element	Average
Visibility	8.6 ^mi
Wind Direction	ESE (106.8 °)

Weather Element	Total
Heating Degree Days	22.1 (Base 18.3)
Growing Degree Days	5.5 (Base 10)

Total Years on Record: 17

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