Ottawa December Weather Averages Illinois, United States of America

December Weather Averages for Ottawa

High Temp	3°C	38°F
Low Temp	-4°C	26°F
Avg Temp	0°C	31°F
Sunshine Hours	132 hours
Rainfall	70.24 mm	2.77 In
Rain days	6 days
Pressure	1019 mb	31 In

Ottawa December Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2008	-1°C / 31°F	-9°C / 15°F	-5°C / 23°F	126 hours	147.37 mm / 5.80 In	10 days	1019 mb / 31 In
2009	0°C / 32°F	-6°C / 21°F	-3°C / 27°F	85 hours	115.18 mm / 4.53 In	13 days	1018 mb / 31 In
2010	-3°C / 27°F	-9°C / 15°F	-6°C / 21°F	52 hours	91.60 mm / 3.61 In	8 days	1020 mb / 31 In
2011	5°C / 40°F	-2°C / 29°F	1°C / 34°F	182 hours	56.89 mm / 2.24 In	4 days	1021 mb / 31 In
2012	5°C / 41°F	-1°C / 30°F	2°C / 35°F	121 hours	61.29 mm / 2.41 In	5 days	1016 mb / 30 In
2013	-1°C / 30°F	-9°C / 16°F	-5°C / 24°F	97 hours	47.40 mm / 1.87 In	11 days	1021 mb / 31 In
2014	3°C / 37°F	-2°C / 28°F	0°C / 32°F	111 hours	24.60 mm / 0.97 In	4 days	1023 mb / 31 In
2015	7°C / 45°F	1°C / 34°F	4°C / 39°F	126 hours	158.59 mm / 6.24 In	9 days	1015 mb / 30 In
2016	0°C / 31°F	-7°C / 19°F	-4°C / 25°F	105 hours	43.55 mm / 1.71 In	9 days	1022 mb / 31 In
2017	1°C / 34°F	-6°C / 22°F	-3°C / 27°F	178 hours	20.10 mm / 0.79 In	5 days	1021 mb / 31 In
2018	4°C / 40°F	-2°C / 28°F	1°C / 33°F	199 hours	129.09 mm / 5.08 In	4 days	1019 mb / 31 In
2019	5°C / 41°F	-2°C / 28°F	1°C / 34°F	193 hours	41.86 mm / 1.65 In	5 days	1017 mb / 31 In
2020	3°C / 38°F	-3°C / 26°F	0°C / 32°F	189 hours	60.08 mm / 2.37 In	6 days	1018 mb / 31 In
2021	9°C / 48°F	-1°C / 31°F	3°C / 38°F	205 hours	64.70 mm / 2.55 In	4 days	1015 mb / 30 In
2022	3°C / 37°F	-5°C / 23°F	-1°C / 30°F	79 hours	54.70 mm / 2.15 In	6 days	1019 mb / 31 In
2023	7°C / 44°F	1°C / 34°F	4°C / 39°F	116 hours	76.64 mm / 3.02 In	6 days	1018 mb / 31 In
2024	2°C / 35°F	-3°C / 26°F	-1°C / 31°F	77 hours	77.61 mm / 3.06 In	3 days	1021 mb / 31 In

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