OLNEY, ILLINOIS

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Elevation: 147 meters Latitude: 38 42N Longitude: 088 04W

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DAILY WEATHER AVERAGE - 12 DECEMBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	1.8 ^°C	5.4 ^°C	-2.3 ^°C	20 ^°C (2015)	-19 ^°C (2013)
Dewpoint	-2.3 ^°C	0.6 ^°C	-4.7 ^°C	17 ^°C (2015)	-21 ^°C (2008)
Humidity	76.6 ^%	89.6 ^%	61.1 ^%		28 ^% (2008)
Barometer	1021 ^hPa	1024.4 ^hPa	1016.6 ^hPa	1037.6 ^hPa (2013)	1002.7 ^hPa (2010)
Wind Speed	10.1 ^km/h	23.7 ^km/h		57.5 ^km/h (2010)
Wind Gust		41.4 ^km/h		74 ^km/h (2010)
Precipitation	25.91 ^mm			63.75 ^mm (2006)

Weather Element	Average
Visibility	12.6 ^km
Wind Direction	SSE (141.9 °)

Weather Element	Total
Heating Degree Days	16.8 (Base 18.3)
Growing Degree Days	6.5 (Base 10)

Total Years on Record: 15

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