Great Falls December Weather Averages Montana, United States of America

December Weather Averages for Great Falls

High Temp	0°C	32°F
Low Temp	-8°C	18°F
Avg Temp	-4°C	25°F
Sunshine Hours	190 hours
Rainfall	25.27 mm	1.00 In
Rain days	7 days
Pressure	1020 mb	31 In

Great Falls December Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2008	-5°C / 24°F	-13°C / 9°F	-9°C / 17°F	97 hours	43.60 mm / 1.72 In	10 days	1020 mb / 31 In
2009	-5°C / 22°F	-14°C / 8°F	-10°C / 15°F	133 hours	31.20 mm / 1.23 In	11 days	1024 mb / 31 In
2010	-2°C / 29°F	-9°C / 16°F	-6°C / 22°F	196 hours	43.80 mm / 1.72 In	7 days	1018 mb / 31 In
2011	2°C / 36°F	-5°C / 23°F	-2°C / 29°F	255 hours	9.20 mm / 0.36 In	4 days	1023 mb / 31 In
2012	0°C / 31°F	-8°C / 17°F	-5°C / 23°F	208 hours	19.60 mm / 0.77 In	5 days	1015 mb / 30 In
2013	-3°C / 27°F	-11°C / 13°F	-6°C / 21°F	171 hours	34.80 mm / 1.37 In	16 days	1024 mb / 31 In
2014	1°C / 35°F	-6°C / 22°F	-2°C / 28°F	187 hours	37.20 mm / 1.46 In	7 days	1020 mb / 31 In
2015	0°C / 32°F	-7°C / 20°F	-4°C / 26°F	183 hours	28.40 mm / 1.12 In	7 days	1016 mb / 30 In
2016	-6°C / 21°F	-13°C / 8°F	-10°C / 15°F	145 hours	15.00 mm / 0.59 In	11 days	1024 mb / 31 In
2017	-2°C / 29°F	-9°C / 15°F	-6°C / 21°F	171 hours	48.80 mm / 1.92 In	10 days	1027 mb / 31 In
2018	2°C / 36°F	-4°C / 24°F	-1°C / 30°F	263 hours	9.50 mm / 0.37 In	3 days	1020 mb / 31 In
2019	3°C / 37°F	-4°C / 25°F	-1°C / 30°F	237 hours	13.30 mm / 0.52 In	4 days	1016 mb / 30 In
2020	5°C / 40°F	-3°C / 27°F	0°C / 33°F	233 hours	14.70 mm / 0.58 In	4 days	1019 mb / 31 In
2021	-1°C / 30°F	-9°C / 16°F	-5°C / 23°F	130 hours	28.10 mm / 1.11 In	10 days	1014 mb / 30 In
2022	-5°C / 24°F	-13°C / 8°F	-9°C / 16°F	116 hours	31.80 mm / 1.25 In	14 days	1022 mb / 31 In
2023	6°C / 43°F	-2°C / 29°F	2°C / 35°F	256 hours	6.84 mm / 0.27 In	1 days	1017 mb / 30 In
2024	4°C / 40°F	-4°C / 25°F	0°C / 32°F	155 hours	32.14 mm / 1.27 In	0 days	1019 mb / 31 In

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