Lake Forest December Weather Averages Illinois, United States of America

December Weather Averages for Lake Forest

High Temp	2°C	36°F
Low Temp	-2°C	28°F
Avg Temp	0°C	32°F
Sunshine Hours	124 hours
Rainfall	63.91 mm	2.52 In
Rain days	7 days
Pressure	1019 mb	31 In

Lake Forest December Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2008	0°C / 31°F	-8°C / 18°F	-4°C / 25°F	120 hours	147.78 mm / 5.82 In	11 days	1019 mb / 31 In
2009	0°C / 32°F	-4°C / 24°F	-2°C / 29°F	78 hours	101.46 mm / 3.99 In	12 days	1017 mb / 31 In
2010	-2°C / 29°F	-6°C / 21°F	-4°C / 25°F	106 hours	60.01 mm / 2.36 In	11 days	1020 mb / 31 In
2011	4°C / 39°F	-1°C / 31°F	2°C / 35°F	179 hours	45.60 mm / 1.80 In	5 days	1020 mb / 31 In
2012	4°C / 40°F	0°C / 32°F	2°C / 36°F	98 hours	68.44 mm / 2.69 In	7 days	1016 mb / 30 In
2013	-1°C / 29°F	-7°C / 19°F	-4°C / 24°F	91 hours	51.40 mm / 2.02 In	11 days	1020 mb / 31 In
2014	2°C / 36°F	-2°C / 29°F	0°C / 33°F	129 hours	30.80 mm / 1.21 In	3 days	1023 mb / 31 In
2015	6°C / 42°F	2°C / 35°F	4°C / 39°F	99 hours	143.91 mm / 5.67 In	10 days	1015 mb / 30 In
2016	-1°C / 30°F	-6°C / 21°F	-3°C / 26°F	104 hours	50.60 mm / 1.99 In	8 days	1021 mb / 31 In
2017	0°C / 32°F	-5°C / 24°F	-2°C / 28°F	171 hours	18.00 mm / 0.71 In	7 days	1020 mb / 31 In
2018	3°C / 37°F	-1°C / 30°F	1°C / 33°F	167 hours	79.90 mm / 3.15 In	7 days	1019 mb / 31 In
2019	4°C / 39°F	-1°C / 30°F	1°C / 34°F	169 hours	43.52 mm / 1.71 In	4 days	1017 mb / 30 In
2020	3°C / 37°F	-2°C / 29°F	0°C / 33°F	158 hours	75.56 mm / 2.97 In	5 days	1017 mb / 31 In
2021	6°C / 43°F	0°C / 33°F	3°C / 38°F	180 hours	58.70 mm / 2.31 In	4 days	1015 mb / 30 In
2022	2°C / 35°F	-4°C / 26°F	-1°C / 30°F	67 hours	59.10 mm / 2.33 In	5 days	1018 mb / 31 In
2023	6°C / 43°F	2°C / 36°F	4°C / 39°F	118 hours	70.94 mm / 2.79 In	8 days	1018 mb / 31 In
2024	2°C / 35°F	-3°C / 27°F	0°C / 31°F	75 hours	64.68 mm / 2.55 In	2 days	1021 mb / 31 In

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