Normal December Weather Averages Illinois, United States of America

December Weather Averages for Normal

High Temp	4°C	39°F
Low Temp	-3°C	27°F
Avg Temp	0°C	33°F
Sunshine Hours	134 hours
Rainfall	70.99 mm	2.79 In
Rain days	7 days
Pressure	1019 mb	31 In

Normal December Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2008	1°C / 33°F	-7°C / 19°F	-3°C / 26°F	131 hours	122.24 mm / 4.81 In	11 days	1020 mb / 31 In
2009	1°C / 34°F	-5°C / 23°F	-2°C / 29°F	100 hours	113.08 mm / 4.45 In	14 days	1018 mb / 31 In
2010	-2°C / 28°F	-8°C / 18°F	-5°C / 23°F	53 hours	71.97 mm / 2.83 In	9 days	1021 mb / 31 In
2011	5°C / 41°F	-1°C / 30°F	2°C / 35°F	186 hours	62.39 mm / 2.46 In	5 days	1021 mb / 31 In
2012	5°C / 42°F	-1°C / 31°F	2°C / 36°F	104 hours	66.79 mm / 2.63 In	7 days	1016 mb / 30 In
2013	0°C / 33°F	-7°C / 19°F	-3°C / 26°F	111 hours	58.30 mm / 2.30 In	7 days	1021 mb / 31 In
2014	3°C / 38°F	-2°C / 28°F	0°C / 33°F	107 hours	33.60 mm / 1.32 In	4 days	1023 mb / 31 In
2015	8°C / 46°F	2°C / 35°F	5°C / 40°F	131 hours	164.71 mm / 6.48 In	11 days	1016 mb / 30 In
2016	1°C / 33°F	-6°C / 22°F	-3°C / 27°F	132 hours	36.50 mm / 1.44 In	8 days	1023 mb / 31 In
2017	2°C / 35°F	-5°C / 23°F	-2°C / 29°F	179 hours	22.40 mm / 0.88 In	5 days	1022 mb / 31 In
2018	5°C / 41°F	-2°C / 29°F	1°C / 34°F	162 hours	131.91 mm / 5.19 In	8 days	1019 mb / 31 In
2019	6°C / 42°F	-2°C / 29°F	2°C / 35°F	191 hours	33.81 mm / 1.33 In	2 days	1018 mb / 31 In
2020	4°C / 39°F	-3°C / 27°F	0°C / 33°F	171 hours	47.98 mm / 1.89 In	6 days	1018 mb / 31 In
2021	10°C / 49°F	0°C / 33°F	5°C / 40°F	205 hours	64.60 mm / 2.54 In	7 days	1015 mb / 30 In
2022	3°C / 38°F	-4°C / 24°F	-1°C / 31°F	89 hours	62.80 mm / 2.47 In	6 days	1019 mb / 31 In
2023	7°C / 45°F	1°C / 35°F	4°C / 40°F	132 hours	82.08 mm / 3.23 In	7 days	1019 mb / 31 In
2024	3°C / 37°F	-2°C / 28°F	0°C / 32°F	84 hours	82.84 mm / 3.26 In	4 days	1022 mb / 31 In

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