ROCK ISLAND, ILLINOIS

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Elevation: 190 meters Latitude: 41 34N Longitude: 090 25W

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DAILY WEATHER AVERAGE - 14 DECEMBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	-0.5 ^°C	4.2 ^°C	-5.4 ^°C	16.1 ^°C (2015)	-18.9 ^°C (2010)
Dewpoint	-3.4 ^°C	0.1 ^°C	-7.6 ^°C	14.4 ^°C (2015)	-22.2 ^°C (1998)
Humidity	82 ^%	93.9 ^%	68.4 ^%		41 ^% (1998)
Barometer	1016.6 ^hPa	1021.3 ^hPa	1012.5 ^hPa	1038.9 ^hPa (2004)	987.1 ^hPa (2015)
Wind Speed	16.6 ^km/h	28.3 ^km/h		46.3 ^km/h (2008)
Wind Gust		51.2 ^km/h		77.7 ^km/h (2015)
Precipitation	10.67 ^mm			32.77 ^mm (2011)

Weather Element	Average
Visibility	9.3 ^km
Wind Direction	S (180.6 °)

Weather Element	Total
Heating Degree Days	19 (Base 18.3)

Total Years on Record: 20

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