Great Falls Weather History Montana, United States of America

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Past date: Past date must be from 1st Jan, 2009 onwards.

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Daily and hourly data from 1 Jan 2009 onwards.
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Sun 22 Jun, 2025 Weather in Great Falls

Sunrise: 05:28 AM Sunset: 09:27 PM	Moonrise: 02:42 AM Moonset: 06:59 PM	Max: 8.4 °c	Min: 4.2 °c	Avg: 6.9 °c	Precip: 24.42 mm	Max Wind: 26.3 kph

	Sun 22 0:00 am	Sun 22 3:00 am	Sun 22 6:00 am	Sun 22 9:00 am	Sun 22 12:00 pm	Sun 22 3:00 pm	Sun 22 6:00 pm	Sun 22 9:00 pm
Icon
Temp	8.4°c	7.3°c	6.2°c	6.4°c	6.6°c	7.1°c	8.0°c	6.3°c
Wind	26.3 kmph	12.6 kmph	19.8 kmph	20.5 kmph	18.7 kmph	5.8 kmph	13.3 kmph	12.6 kmph
Precip	0.00 mm	0.00 mm	1.00 mm	0.00 mm	2.79 mm	3.15 mm	1.20 mm	0.00 mm
Cloud	100%	99%	100%	100%	100%	100%	100%	68%
Humidity	57%	65%	94%	94%	96%	93%	83%	87%
Pressure	1009 mb	1011 mb	1013 mb	1014 mb	1016 mb	1018 mb	1018 mb	1019 mb

Great Falls Annual Weather Averages

Month	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
January	0°C / 32°F	-8°C / 18°F	-4°C / 25°F	182 hours	23.02 mm / 0.91 In	6 days	1021 mb / 31 In
February	0°C / 32°F	-9°C / 16°F	-5°C / 24°F	145 hours	25.36 mm / 1.00 In	7 days	1020 mb / 31 In
March	7°C / 44°F	-3°C / 26°F	1°C / 35°F	184 hours	25.08 mm / 0.99 In	5 days	1016 mb / 30 In
April	12°C / 53°F	1°C / 33°F	6°C / 43°F	174 hours	52.30 mm / 2.06 In	7 days	1014 mb / 30 In
May	17°C / 63°F	6°C / 42°F	12°C / 53°F	208 hours	72.97 mm / 2.87 In	8 days	1013 mb / 30 In
June	23°C / 73°F	10°C / 50°F	16°C / 62°F	247 hours	69.71 mm / 2.74 In	8 days	1011 mb / 30 In
July	29°C / 85°F	14°C / 58°F	22°C / 72°F	323 hours	19.41 mm / 0.76 In	4 days	1013 mb / 30 In
August	28°C / 83°F	14°C / 58°F	21°C / 70°F	312 hours	32.92 mm / 1.30 In	4 days	1013 mb / 30 In
September	23°C / 73°F	10°C / 50°F	16°C / 61°F	270 hours	53.80 mm / 2.12 In	4 days	1014 mb / 30 In
October	13°C / 56°F	2°C / 36°F	7°C / 45°F	222 hours	39.26 mm / 1.55 In	5 days	1016 mb / 30 In
November	6°C / 42°F	-3°C / 26°F	1°C / 34°F	216 hours	23.76 mm / 0.94 In	5 days	1018 mb / 31 In
December	0°C / 32°F	-8°C / 18°F	-4°C / 25°F	190 hours	25.27 mm / 1.00 In	7 days	1020 mb / 31 In

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