JOHNSTON CITY, ILLINOIS

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Elevation: 145 meters Latitude: 37 46N Longitude: 088 54W

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DAILY WEATHER AVERAGE - 20 DECEMBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	2.6 ^°C	6.8 ^°C	-1.7 ^°C	18 ^°C (2013)	-15 ^°C (2000)
Dewpoint	-1.8 ^°C	2.2 ^°C	-5.3 ^°C	16 ^°C (2013)	-18 ^°C (2004)
Humidity	73.2 ^%	89.6 ^%	55.1 ^%		28 ^% (2004)
Barometer	1020.7 ^hPa	1024 ^hPa	1016.9 ^hPa	1032.2 ^hPa (2005)	1007.1 ^hPa (2011)
Wind Speed	11.6 ^km/h	23 ^km/h		37 ^km/h (2004)
Wind Gust		38.9 ^km/h		51.8 ^km/h (2004)
Precipitation	7.87 ^mm			15.49 ^mm (2013)

Weather Element	Average
Visibility	15.4 ^km
Wind Direction	SSE (162.2 °)

Weather Element	Total
Heating Degree Days	15.8 (Base 18.3)
Growing Degree Days	1.8 (Base 10)

Total Years on Record: 20

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