Climate Insights for Montana

The climate in Montana is temperate. The average annual temperature is 13°C and approximately 691 mm of precipitation falls per year. Montana receives a notable amount of rainfall throughout the year, including during its driest month. Montana is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, June. The coldest months are January, February, December, when temperatures can drop to -3°C. Snowfall occurs from January to December, with around 93cm accumulating over the season.The climate in Montana is temperate. The average annual temperature is 56°F and approximately 27.2 in of precipitation falls per year. Montana receives a notable amount of rainfall throughout the year, including during its driest month. Montana is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, June. The coldest months are January, February, December, when temperatures can drop to 27°F. Snowfall occurs from January to December, with around 37in accumulating over the season.

Temperatures in Montana vary considerably across the year, with a 34°C difference between the coldest and warmest months. The warmest month is August, when average highs reach 31°C and the mean temperature sits around 24°C. The coldest month is January, when overnight lows fall to -3°C and the daily average is 1°C. On average, daily temperatures fluctuate by about 11°C between overnight lows and afternoon highs. The sharpest temperature change occurs between September and October, with a 6°C shift in average temperatures.Temperatures in Montana vary considerably across the year, with a 61°F difference between the coldest and warmest months. The warmest month is August, when average highs reach 88°F and the mean temperature sits around 76°F. The coldest month is January, when overnight lows fall to 27°F and the daily average is 34°F. On average, daily temperatures fluctuate by about 19°F between overnight lows and afternoon highs. The sharpest temperature change occurs between September and October, with a 12°F shift in average temperatures.

Montana is a relatively dry area, receiving approximately 691 mm of precipitation annually, which averages out to around 58 mm per month. The wettest month is May, averaging 82 mm of rainfall. March and June also tend to see above-average precipitation. The driest month is August, with just 31 mm. That's 51 mm 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. Snowfall is a regular feature from January to December, with around 93cm accumulating over the season. January typically sees the most snow at around 32cm.Montana is a relatively dry area, receiving approximately 27.2 in of precipitation annually, which averages out to around 2.3 in per month. The wettest month is May, averaging 3.2 in of rainfall. March and June also tend to see above-average precipitation. The driest month is August, with just 1.2 in. That's 2 in 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. Snowfall is a regular feature from January to December, with around 37in accumulating over the season. January typically sees the most snow at around 13in.

Montana is relatively calm, with an average annual wind speed of 8km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is April, averaging 8km/h, though still comfortable for most outdoor activities. The calmest conditions occur in November, with average winds dropping to 7km/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.Montana is mildly breezy, with an average annual wind speed of 5mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is April, averaging 5mph, though still comfortable for most outdoor activities. The calmest conditions occur in November, with average winds dropping to 4mph, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 1mph between the calmest and windiest months.

The best time to visit Montana is during May, June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 21°C with modest rainfall averaging 54 mm per month. By contrast, January can be quite cold with temperatures dropping to -3°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.The best time to visit Montana is during May, June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 71°F with modest rainfall averaging 2.1 in per month. By contrast, January can be quite cold with temperatures dropping to 27°F. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

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