ROCK ISLAND, ILLINOIS

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Elevation: 622 feet Latitude: 41 34N Longitude: 090 25W

WEATHER

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DAILY WEATHER AVERAGE - DECEMBER 20

[ °C ] °F

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	25.9 ^°F	31.3 ^°F	17.6 ^°F	52 ^°F (2015)	-2.2 ^°F (2008)
Dewpoint	19.7 ^°F	26.1 ^°F	11.4 ^°F	43 ^°F (2015)	-8 ^°F (2004)
Humidity	78.5 ^%	90.3 ^%	67.1 ^%		42 ^% (2004)
Barometer	30.05 ⁱⁿ	30.20 ⁱⁿ	29.94 ⁱⁿ	30.42 ⁱⁿ (1998)	29.55 ⁱⁿ (2002)
Wind Speed	11.8 ^mph	19 ^mph		32.2 ^mph (2008)
Wind Gust		31.5 ^mph		41.4 ^mph (2008)
Precipitation	0.46 ⁱⁿ			2.74 ⁱⁿ (2006)

Weather Element	Average
Visibility	6 ^mi
Wind Direction	S (184.7 °)

Weather Element	Total
Heating Degree Days	40.6 (Base 18.3)

Total Years on Record: 19

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