Weather in December in Pontiac, Il

< December >
	Normal Max/ High Temperature	2°C (35°F)
	Average Temperature	-3°C (27°F)
	Min/ Low Temperature	-7°C (19°F)
	Normal Precipitation	65mm (2.5in)
	Average Daylight per day	09h 16'
	Sun altitude at solar noon on the 21st day.	25.6°

The average temperature in Pontiac, Il in December is slightly cold at -2.8 °C (26.96 °F).
Afternoons can be very cool with average high temperatures reaching 1.6 °C (34.9 °F).
Overnight temperatures are generally cold with an average low of -7.2 °C (19 °F).
The mean daily temperature variation/ range in December is 8.8 °C (15.8 °F).
Precipitation averages for December are moderate with 64.5mm (2.5 in) recorded.
The shortest day is 9h 13' long and the longest day is 9h 25' long with an average length of 9h 16'.

Weather Trend Graph for December in Pontiac, Il, Usa

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