Winters in Bozeman are harsh, with temperatures often dropping below freezing and averaging around -8°C in February. Spring arrives slowly, with March temperatures gradually warming up to a mild average of 3°C, while April sees a more significant increase to an average of 5°C. Summer brings warm days, with July typically being the hottest month, averaging 23°C, but also experiencing occasional heatwaves above 38°C. Autumn is generally mild, with September and October temperatures ranging from around 4-15°C on average. The coldest months are January and December, while June and July tend to be the warmest.