Crystal Lake December Weather Averages Illinois, United States of America

December Weather Averages for Crystal Lake

High Temp	2°C	35°F
Low Temp	-4°C	24°F
Avg Temp	-1°C	29°F
Sunshine Hours	121 hours
Rainfall	60.99 mm	2.40 In
Rain days	7 days
Pressure	1019 mb	31 In

Crystal Lake December Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2008	-2°C / 29°F	-11°C / 13°F	-6°C / 21°F	114 hours	141.87 mm / 5.59 In	11 days	1019 mb / 31 In
2009	-1°C / 30°F	-7°C / 20°F	-4°C / 25°F	78 hours	100.71 mm / 3.96 In	13 days	1017 mb / 31 In
2010	-3°C / 26°F	-9°C / 15°F	-6°C / 21°F	75 hours	55.92 mm / 2.20 In	10 days	1020 mb / 31 In
2011	3°C / 38°F	-2°C / 28°F	0°C / 33°F	182 hours	42.23 mm / 1.66 In	6 days	1020 mb / 31 In
2012	3°C / 38°F	-2°C / 28°F	1°C / 33°F	103 hours	66.61 mm / 2.62 In	8 days	1016 mb / 30 In
2013	-3°C / 27°F	-10°C / 13°F	-6°C / 21°F	92 hours	48.90 mm / 1.93 In	12 days	1020 mb / 31 In
2014	2°C / 35°F	-3°C / 26°F	-1°C / 31°F	128 hours	30.80 mm / 1.21 In	3 days	1023 mb / 31 In
2015	5°C / 42°F	0°C / 33°F	3°C / 37°F	88 hours	136.10 mm / 5.36 In	10 days	1015 mb / 30 In
2016	-2°C / 28°F	-8°C / 17°F	-5°C / 23°F	84 hours	48.10 mm / 1.89 In	6 days	1022 mb / 31 In
2017	-1°C / 30°F	-6°C / 21°F	-4°C / 25°F	177 hours	18.80 mm / 0.74 In	5 days	1020 mb / 31 In
2018	2°C / 36°F	-3°C / 27°F	0°C / 31°F	168 hours	70.90 mm / 2.79 In	7 days	1019 mb / 31 In
2019	4°C / 39°F	-3°C / 27°F	0°C / 32°F	155 hours	45.11 mm / 1.78 In	4 days	1017 mb / 30 In
2020	2°C / 35°F	-4°C / 25°F	-1°C / 30°F	172 hours	65.02 mm / 2.56 In	5 days	1017 mb / 31 In
2021	6°C / 43°F	-2°C / 28°F	2°C / 35°F	187 hours	65.80 mm / 2.59 In	7 days	1015 mb / 30 In
2022	1°C / 34°F	-6°C / 22°F	-3°C / 27°F	57 hours	58.00 mm / 2.28 In	6 days	1018 mb / 31 In
2023	6°C / 42°F	0°C / 33°F	3°C / 37°F	111 hours	57.74 mm / 2.27 In	8 days	1018 mb / 31 In
2024	0°C / 33°F	-4°C / 25°F	-2°C / 29°F	78 hours	65.11 mm / 2.56 In	3 days	1021 mb / 31 In

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