OLNEY, ILLINOIS

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

WEATHER

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DAILY WEATHER AVERAGE - 18 DECEMBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	2.2 ^°C	6.3 ^°C	-1.9 ^°C	16 ^°C (2002)	-9 ^°C (2010)
Dewpoint	-2.4 ^°C	0.7 ^°C	-4.6 ^°C	13 ^°C (2006)	-14 ^°C (2008)
Humidity	73.8 ^%	88.2 ^%	57.2 ^%		29 ^% (2008)
Barometer	1019.3 ^hPa	1022.7 ^hPa	1015.6 ^hPa	1036.6 ^hPa (2005)	1005.4 ^hPa (2012)
Wind Speed	10.3 ^km/h	22.2 ^km/h		46.3 ^km/h (2002)
Wind Gust		38 ^km/h		64.9 ^km/h (2002)
Precipitation	14.99 ^mm			51.82 ^mm (2002)

Weather Element	Average
Visibility	14 ^km
Wind Direction	SSE (161.3 °)

Weather Element	Total
Heating Degree Days	16.2 (Base 18.3)
Growing Degree Days	4.5 (Base 10)

Total Years on Record: 15

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