Rock Falls December Weather Averages Illinois, United States of America

December Weather Averages for Rock Falls

High Temp	2°C	36°F
Low Temp	-4°C	24°F
Avg Temp	-1°C	30°F
Sunshine Hours	133 hours
Rainfall	64.17 mm	2.53 In
Rain days	7 days
Pressure	1019 mb	31 In

Rock Falls 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 / 12°F	-6°C / 21°F	130 hours	131.62 mm / 5.18 In	12 days	1019 mb / 31 In
2009	-1°C / 30°F	-7°C / 19°F	-4°C / 25°F	69 hours	111.10 mm / 4.37 In	13 days	1017 mb / 31 In
2010	-3°C / 26°F	-11°C / 13°F	-7°C / 20°F	53 hours	57.70 mm / 2.27 In	9 days	1020 mb / 31 In
2011	4°C / 39°F	-3°C / 27°F	1°C / 33°F	193 hours	53.57 mm / 2.11 In	6 days	1021 mb / 31 In
2012	4°C / 38°F	-3°C / 27°F	1°C / 33°F	121 hours	69.49 mm / 2.74 In	7 days	1016 mb / 30 In
2013	-2°C / 28°F	-10°C / 14°F	-6°C / 21°F	102 hours	39.30 mm / 1.55 In	14 days	1021 mb / 31 In
2014	2°C / 35°F	-3°C / 26°F	-1°C / 31°F	130 hours	25.10 mm / 0.99 In	3 days	1023 mb / 31 In
2015	6°C / 43°F	0°C / 33°F	3°C / 38°F	106 hours	156.43 mm / 6.16 In	9 days	1015 mb / 30 In
2016	-1°C / 29°F	-8°C / 17°F	-5°C / 23°F	100 hours	46.00 mm / 1.81 In	8 days	1022 mb / 31 In
2017	0°C / 32°F	-6°C / 21°F	-3°C / 26°F	180 hours	24.10 mm / 0.95 In	6 days	1021 mb / 31 In
2018	3°C / 38°F	-3°C / 27°F	0°C / 32°F	197 hours	86.88 mm / 3.42 In	6 days	1019 mb / 31 In
2019	4°C / 39°F	-3°C / 26°F	0°C / 33°F	213 hours	32.72 mm / 1.29 In	4 days	1017 mb / 31 In
2020	2°C / 36°F	-4°C / 25°F	-1°C / 30°F	195 hours	54.16 mm / 2.13 In	4 days	1018 mb / 31 In
2021	7°C / 45°F	-2°C / 29°F	2°C / 36°F	204 hours	56.90 mm / 2.24 In	5 days	1015 mb / 30 In
2022	1°C / 35°F	-6°C / 21°F	-2°C / 28°F	77 hours	71.90 mm / 2.83 In	6 days	1018 mb / 31 In
2023	6°C / 43°F	1°C / 33°F	3°C / 38°F	112 hours	74.81 mm / 2.95 In	8 days	1018 mb / 31 In
2024	1°C / 34°F	-3°C / 26°F	-1°C / 30°F	80 hours	66.63 mm / 2.62 In	4 days	1021 mb / 31 In

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