2025 Compare Climate & Weather:
Big Sky, MT vs Vail, CO

Highlights

On average, there are 247 sunny days per year in Vail. Big Sky averages 187 sunny days per year. The US average is 205 sunny days.

Vail, Colorado gets 17.5 inches of rain, on average, per year. Big Sky, Montana gets 20.2 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Vail averages 108 inches of snow per year. Big Sky averages 46.1 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Vail, Colorado
Summer High: the July high is around 77.4 degrees
Winter Low: the January low is 1.9
Rain: averages 17.5 inches of rain a year
Snow: averages 108 inches of snow a year

Big Sky, Montana
Summer High: the July high is around 77.9 degrees
Winter Low: the January low is 7.6
Rain: averages 20.2 inches of rain a year
Snow: averages 46.1 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Vail is 5.8 (10=best), which means it is one of the least comfortable places in Colorado.

The annual BestPlaces Comfort Index for Big Sky is 6.0 (10=best), which means it is one of the least comfortable places in Montana.

Today's Weather - Big Sky, MT

47°F

Today's Weather - Vail, CO

49°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Big Sky / Vail

July is the hottest month for Big Sky with an average high temperature of 77.9°, which ranks it as one of the coolest places in Montana. In Big Sky, there are 2 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Big Sky are July, August and June.

July is the hottest month for Vail with an average high temperature of 77.4°, which ranks it as cooler than most places in Colorado. In Vail, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Vail are July, August and June.

December has the coldest nighttime temperatures for Big Sky with an average of 6.5°. This is colder than most places in Montana.

January has the coldest nighttime temperatures for Vail with an average of 1.9°. This is one of the coldest places in Colorado.

In Big Sky, there are 1.6 days annually when the high temperature is over 90°, which is one of the coolest places in Montana.

In Vail, there are 0.3 days annually when the high temperature is over 90°, which is cooler than most places in Colorado.

In Big Sky, there are 253.5 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in Montana.

In Vail, there are 237.1 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in Colorado.

In Big Sky, there are 28.0 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Montana.

In Vail, there are 37.1 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in Colorado.

June is the wettest month in Big Sky with 2.7 inches of rain, and the driest month is February with 1.0 inches. The wettest season is Autumn with 29% of yearly precipitation and 20% occurs in Spring, which is the driest season. The annual rainfall of 20.2 inches in Big Sky means that it is wetter than most places in Montana.


April is the wettest month in Vail with 1.8 inches of rain, and the driest month is January with 1.2 inches. The wettest season is Summer with 28% of yearly precipitation and 21% occurs in Spring, which is the driest season. The annual rainfall of 17.5 inches in Vail means that it is about average compared to other places in Colorado.

May is the rainiest month in Big Sky with 12.7 days of rain, and October is the driest month with only 7.8 rainy days. There are 123.6 rainy days annually in Big Sky, which is one of the rainiest places in Montana. The rainiest season is Summer when it rains 27% of the time and the driest is Winter with only a 22% chance of a rainy day.

August is the rainiest month in Vail with 9.8 days of rain, and October is the driest month with only 6.6 rainy days. There are 100.0 rainy days annually in Vail, which is rainier than most places in Colorado. The rainiest season is Autumn when it rains 26% of the time and the driest is Winter with only a 23% chance of a rainy day.

An annual snowfall of 46.1 inches in Big Sky means that it is snowier than most places in Montana.

An annual snowfall of 108.0 inches in Vail means that it is snowier than most places in Colorado.

January is the snowiest month in Big Sky with 8.6 inches of snow, and 8 months of the year have significant snowfall.

February is the snowiest month in Vail with 20.5 inches of snow, and 9 months of the year have significant snowfall.