ROCK ISLAND, ILLINOIS

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

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DAILY WEATHER AVERAGE - 17 DECEMBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	-4.7 ^°C	-1.3 ^°C	-8.6 ^°C	7.8 ^°C (2006)	-18.9 ^°C (2010)
Dewpoint	-7.9 ^°C	-4.6 ^°C	-11.3 ^°C	7 ^°C (2001)	-23 ^°C (2006)
Humidity	79.8 ^%	91.5 ^%	65.7 ^%		44 ^% (2006)
Barometer	1019.6 ^hPa	1023 ^hPa	1015.2 ^hPa	1036.9 ^hPa (2005)	1003.7 ^hPa (2002)
Wind Speed	16.3 ^km/h	25.7 ^km/h		46.3 ^km/h (2000)
Wind Gust		41.8 ^km/h		55.5 ^km/h (2000)
Precipitation	1.02 ^mm			1.02 ^mm (2003)

Weather Element	Average
Visibility	11.1 ^km
Wind Direction	SW (225.8 °)

Weather Element	Total
Heating Degree Days	23.3 (Base 18.3)

Total Years on Record: 19

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