Climate Insights for Bozeman

The climate in Bozeman is cool. The average annual temperature is 3°C and approximately 891mm of precipitation falls per year. Bozeman receives a notable amount of rainfall throughout the year, including during its driest month. Bozeman is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: Luglio, Agosto, Giugno. The coldest months are Dicembre, Febbraio, Gennaio, when temperatures can drop to -11°C. Bozeman experiences heavy snowfall, typically from January through December.

Bozeman has a wide annual temperature range, spanning 36°C from the coldest to warmest months. Luglio is the warmest month, though highs remain moderate at 25°C with a mean of 17°C. The coldest month is Dicembre, when overnight lows fall to -11°C and the daily average is -8°C. On average, daily temperatures fluctuate by about 12°C between overnight lows and afternoon highs. The sharpest temperature change occurs between September and October, with a 8°C shift in average temperatures.

Bozeman is a moderately rainy area, receiving approximately 891mm of precipitation annually, which averages out to around 74mm per month. The wettest month is May, averaging 123mm of rainfall. June and April also tend to see above-average precipitation. The driest month is January, with just 39mm. That's 84mm less than May, the wettest month. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall. Bozeman receives heavy snowfall, accumulating around 287cm annually from January through December. The snowiest month is April, with approximately 44cm. Winter travel should account for significant snow cover.

Bozeman is mildly breezy, with an average annual wind speed of 12km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is June, averaging 13km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 12km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 1km/h between the calmest and windiest months.

It is currently spring in Bozeman, which began on March 20, 2026. Bozeman is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in Luglio at around 25°C, while the coldest stretch bottoms out in Dicembre near -11°C. Summer is next, beginning on June 21, 2026 — 93 days from now.

The best time to visit Bozeman is during Luglio and Agosto, when the weather is most comfortable for travellers. During these months, average temperatures hover around 16°C with modest rainfall averaging 71mm per month. By contrast, Dicembre can be quite cold with temperatures dropping to -11°C. Despite being the best months overall, some rain is still likely — pack a waterproof layer and plan a mix of indoor and outdoor activities.

The table below shows monthly climate averages for Bozeman based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.