Grayslake December Weather Averages Illinois, United States of America

December Weather Averages for Grayslake

High Temp	2°C	35°F
Low Temp	-4°C	26°F
Avg Temp	-1°C	30°F
Sunshine Hours	121 hours
Rainfall	66.23 mm	2.61 In
Rain days	8 days
Pressure	1019 mb	31 In

Grayslake December Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2008	-1°C / 30°F	-9°C / 15°F	-5°C / 23°F	116 hours	152.06 mm / 5.99 In	12 days	1019 mb / 31 In
2009	-1°C / 31°F	-6°C / 22°F	-3°C / 27°F	73 hours	104.00 mm / 4.09 In	13 days	1017 mb / 31 In
2010	-3°C / 27°F	-8°C / 18°F	-5°C / 23°F	89 hours	63.22 mm / 2.49 In	12 days	1020 mb / 31 In
2011	3°C / 38°F	-2°C / 29°F	1°C / 34°F	178 hours	52.17 mm / 2.05 In	6 days	1020 mb / 31 In
2012	4°C / 39°F	-1°C / 30°F	1°C / 35°F	102 hours	70.07 mm / 2.76 In	6 days	1016 mb / 30 In
2013	-2°C / 28°F	-9°C / 16°F	-5°C / 23°F	94 hours	60.70 mm / 2.39 In	14 days	1020 mb / 31 In
2014	2°C / 35°F	-3°C / 27°F	0°C / 31°F	124 hours	37.70 mm / 1.48 In	4 days	1023 mb / 31 In
2015	6°C / 42°F	1°C / 34°F	3°C / 38°F	95 hours	150.54 mm / 5.93 In	11 days	1015 mb / 30 In
2016	-2°C / 29°F	-8°C / 18°F	-5°C / 24°F	91 hours	53.20 mm / 2.09 In	8 days	1021 mb / 31 In
2017	-1°C / 31°F	-6°C / 21°F	-3°C / 26°F	175 hours	19.00 mm / 0.75 In	7 days	1020 mb / 31 In
2018	3°C / 37°F	-2°C / 28°F	0°C / 32°F	167 hours	78.10 mm / 3.07 In	9 days	1019 mb / 31 In
2019	4°C / 39°F	-2°C / 28°F	1°C / 33°F	153 hours	47.73 mm / 1.88 In	4 days	1017 mb / 30 In
2020	2°C / 36°F	-3°C / 26°F	-1°C / 31°F	161 hours	68.91 mm / 2.71 In	4 days	1017 mb / 31 In
2021	6°C / 43°F	-1°C / 30°F	2°C / 36°F	187 hours	78.10 mm / 3.07 In	5 days	1015 mb / 30 In
2022	1°C / 34°F	-5°C / 23°F	-2°C / 28°F	65 hours	64.20 mm / 2.53 In	7 days	1018 mb / 31 In
2023	6°C / 42°F	1°C / 34°F	3°C / 38°F	113 hours	54.53 mm / 2.15 In	8 days	1018 mb / 31 In
2024	1°C / 33°F	-4°C / 25°F	-1°C / 29°F	73 hours	57.43 mm / 2.26 In	2 days	1021 mb / 31 In

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