ROCK ISLAND, ILLINOIS

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

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DAILY WEATHER AVERAGE - 19 DECEMBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	-4.7 ^°C	-1.4 ^°C	-8.3 ^°C	7.8 ^°C (2011)	-21.1 ^°C (2005)
Dewpoint	-7.6 ^°C	-5 ^°C	-11.3 ^°C	3.3 ^°C (1997)	-24.4 ^°C (2006)
Humidity	78.5 ^%	87.9 ^%	66.1 ^%		29 ^% (2006)
Barometer	1019.3 ^hPa	1023.4 ^hPa	1014.9 ^hPa	1037.6 ^hPa (2005)	1001 ^hPa (2002)
Wind Speed	16.9 ^km/h	27.2 ^km/h		37 ^km/h (2008)
Wind Gust		44.4 ^km/h		50.1 ^km/h (2012)
Precipitation	7.62 ^mm			19.56 ^mm (2012)

Weather Element	Average
Visibility	10.9 ^km
Wind Direction	SSW (204.9 °)

Weather Element	Total
Heating Degree Days	23.2 (Base 18.3)

Total Years on Record: 19

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