What is the hottest month in Bozeman?

July is the warmest month in Bozeman, with an average high of 82.1°F.

What is the coldest month in Bozeman?

December is the coldest month in Bozeman, with an average low of 14.5°F.

What month does Bozeman get the most rain?

June is typically the wettest month in Bozeman, with about 3.27 inches of precipitation.

What plant hardiness zone is Bozeman in?

Bozeman is approximately in USDA plant hardiness Zone 6b, based on the average annual extreme minimum temperature.

Has the climate in Bozeman changed recently?

19.1% of Bozeman's all-time daily heat records were set in the last decade (since 2015), compared to roughly 5% if records were evenly distributed over time.

Bozeman, MT

Climate overview — based on NOAA 1991-2020 normals from BOZEMAN MONTANA STATE UNIV, MT US.

Dfb Warm-summer humid continental climate 6b USDA hardiness Zone 6b

Year-round temperatures (°F)

Avg high Avg low

Climate summary

Bozeman has an annual average temperature of 44.1°F with about 20 inches of precipitation per year and 91.3 inches of snow. The warmest month is July (average high 82.1°F), and the coldest is December (average low 14.5°F). June is typically the wettest month (3.27 in) and February the driest (0.83 in). Snow typically falls from January through December.

Annual swing

43°F

warmest to coldest month

Heating need

7,608

HDD/yr

Cooling need

CDD/yr

Best time to visit Bozeman

Full guide →

Climate change signal

All-time records →

70 of 366 (19.1%) of Bozeman's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.

1890s		34
1900s		4
1910s		26
1920s		8
1930s		22
1940s		9
1950s		11
1960s		26
1970s		15
1980s		39
1990s		35
2000s		54
2010s		27
2020s		56

Bars: number of all-time daily heat records still standing that were set in each decade.

Monthly averages

Month	Avg High	Avg Low	Avg Temp	Precipitation	Snow	Rainy days
January	34.2°F	15.1°F	24.6°F	0.86 in	12.7 in	11
February	36.8°F	16.6°F	26.7°F	0.83 in	13.0 in	10
March	46.1°F	23.9°F	35.0°F	1.42 in	13.1 in	12
April	54.5°F	30.5°F	42.5°F	2.51 in	12.9 in	14
May	63.2°F	38.8°F	51.0°F	2.93 in	3.6 in	15
June	71.7°F	45.6°F	58.6°F	3.27 in	0.8 in	15
July	82.1°F	51.7°F	66.9°F	1.33 in	—	10
August	81.3°F	50.0°F	65.6°F	1.32 in	0.1 in	10
September	71.4°F	42.4°F	56.9°F	1.44 in	0.4 in	9
October	57.3°F	32.4°F	44.9°F	1.84 in	6.0 in	11
November	42.3°F	22.2°F	32.3°F	1.25 in	12.5 in	10
December	33.3°F	14.5°F	23.9°F	1.03 in	16.2 in	11