the Rocky Mountains Weather by Month — Temperature & Rainfall Guide

the Rocky Mountains is a region in the United States of America. Many people wonder what the weather conditions are in the Rocky Mountains over the year. What is the best time to visit the Rocky Mountains?

This page shows the average weather conditions by month in the Rocky Mountains over the year in: January, February, March, April, May, June, July, August, September, October, November, December.

In January the weather in the Rocky Mountains is generally poor. January is a winter month. The temperatures range from very low in Leadville with -2°C (28°F) to low in Estes Park with 3°C (37°F). It is a very cold month in some areas, so be prepared and make sure to dress up warm.

Find more detailed climate information for the Rocky Mountains in January here.

In February the weather in the Rocky Mountains is generally poor. February is a winter month. The temperatures range from very low in Leadville with -2°C (28°F) to low in Bozeman with 3°C (37°F). It is a very cold month in some areas, so be prepared and make sure to dress up warm.

Find more detailed climate information for the Rocky Mountains in February here.

In March the weather in the Rocky Mountains ranges from poor in Breckenridge to unpleasant in Estes Park. The average maximum daytime temperatures are low and range from 3°C (37°F) in Leadville to 9°C (48°F) in Bozeman. It is a very cold month in some areas, so be prepared and make sure to dress up warm.

Find more detailed climate information for the Rocky Mountains in March here.

In April the weather in the Rocky Mountains ranges from poor in Breckenridge to unpleasant in Park City. The temperatures range from low in Leadville with 6°C (43°F) to moderate in Bozeman with 13°C (55°F).

Find more detailed climate information for the Rocky Mountains in April here.

In May the weather in the Rocky Mountains ranges from unpleasant in Breckenridge to pleasant in Bozeman. The temperatures range from low in Leadville with 11°C (52°F) to moderate in Bozeman with 18°C (64°F).

Find more detailed climate information for the Rocky Mountains in May here.

In June the weather in the Rocky Mountains is generally perfect. June is a summer month. The temperatures range from pleasant in Big Sky with 18°C (64°F) to high in Estes Park with 24°C (75°F).

Find more detailed climate information for the Rocky Mountains in June here.

In July the weather in the Rocky Mountains is generally perfect. July is a summer month. The temperatures range from pleasant in Leadville with 21°C (70°F) to high in Bozeman with 29°C (84°F). On average, this month is the warmest month of the year in the Rocky Mountains.

Find more detailed climate information for the Rocky Mountains in July here.

In August the weather in the Rocky Mountains is generally perfect. August is a summer month. The temperatures range from pleasant in Leadville with 19°C (66°F) to high in Bozeman with 28°C (82°F).

Find more detailed climate information for the Rocky Mountains in August here.

In September the weather in the Rocky Mountains ranges from tolerable in Breckenridge to perfect in Park City. The temperatures range from moderate in Leadville with 16°C (61°F) to high in Bozeman with 23°C (73°F).

Find more detailed climate information for the Rocky Mountains in September here.

In October the weather in the Rocky Mountains ranges from poor in Breckenridge to tolerable in Estes Park. The temperatures range from low in Leadville with 9°C (48°F) to moderate in Bozeman with 15°C (59°F).

Find more detailed climate information for the Rocky Mountains in October here.

In November the weather in the Rocky Mountains ranges from poor in Breckenridge to unpleasant in Estes Park. The average maximum daytime temperatures are low and range from 2°C (36°F) in Big Sky to 8°C (46°F) in Estes Park. It is a very cold month in some areas, so be prepared and make sure to dress up warm.

Find more detailed climate information for the Rocky Mountains in November here.

In December the weather in the Rocky Mountains is generally poor. December is a winter month. The temperatures range from very low in Big Sky with -3°C (27°F) to low in Estes Park with 2°C (36°F). On average, this month is one of the coldest months of the year in the Rocky Mountains. So be prepared and make sure to dress up warm.

Find more detailed climate information for the Rocky Mountains in December here.