2025 Compare Climate & Weather:
Missoula, MT vs Greenville, ME

Highlights

On average, there are 185 sunny days per year in Greenville. Missoula averages 159 sunny days per year. The US average is 205 sunny days.

Greenville, Maine gets 43.7 inches of rain, on average, per year. Missoula, Montana gets 15.2 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Greenville averages 99 inches of snow per year. Missoula averages 39.5 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Greenville, Maine
Summer High: the July high is around 75 degrees
Winter Low: the January low is 2.6
Rain: averages 43.7 inches of rain a year
Snow: averages 99 inches of snow a year

Missoula, Montana
Summer High: the July high is around 84.6 degrees
Winter Low: the January low is 17.9
Rain: averages 15.2 inches of rain a year
Snow: averages 39.5 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Greenville is 5.7 (10=best), which means it is one of the least comfortable places in Maine.

The annual BestPlaces Comfort Index for Missoula is 6.6 (10=best), which means it is about average compared to other places in Montana.

Today's Weather - Missoula, MT

60°F

Today's Weather - Greenville, ME

57°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Missoula / Greenville

July is the hottest month for Missoula with an average high temperature of 84.6°, which ranks it as about average compared to other places in Montana. In Missoula, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Missoula are June, August and September.

July is the hottest month for Greenville with an average high temperature of 75.0°, which ranks it as one of the coolest places in Maine. In Greenville, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Greenville are July, August and June.

December has the coldest nighttime temperatures for Missoula with an average of 16.9°. This is warmer than most places in Montana.

January has the coldest nighttime temperatures for Greenville with an average of 2.6°. This is one of the coldest places in Maine.

In Missoula, there are 19.9 days annually when the high temperature is over 90°, which is about average compared to other places in Montana.

In Greenville, there are 0.4 days annually when the high temperature is over 90°, which is one of the coolest places in Maine.

In Missoula, there are 166.9 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Montana.

In Greenville, there are 176.3 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in Maine.

In Missoula, there are 6.5 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Montana.

In Greenville, there are 32.1 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in Maine.

June is the wettest month in Missoula with 2.2 inches of rain, and the driest month is February with 0.8 inches. The wettest season is Summer with 30% of yearly precipitation and 19% occurs in Spring, which is the driest season. The annual rainfall of 15.2 inches in Missoula means that it is wetter than most places in Montana.


October is the wettest month in Greenville with 4.4 inches of rain, and the driest month is January with 2.7 inches. The wettest season is Autumn with 28% of yearly precipitation and 22% occurs in Summer, which is the driest season. The annual rainfall of 43.7 inches in Greenville means that it is drier than most places in Maine.

December is the rainiest month in Missoula with 12.1 days of rain, and July is the driest month with only 6.9 rainy days. There are 120.4 rainy days annually in Missoula, which is rainier than most places in Montana. The rainiest season is Summer when it rains 28% of the time and the driest is Autumn with only a 22% chance of a rainy day.

June is the rainiest month in Greenville with 13.9 days of rain, and February is the driest month with only 9.7 rainy days. There are 145.0 rainy days annually in Greenville, which is one of the rainiest places in Maine. The rainiest season is Autumn when it rains 27% of the time and the driest is Spring with only a 23% chance of a rainy day.

An annual snowfall of 39.5 inches in Missoula means that it is about average compared to other places in Montana.

An annual snowfall of 99.0 inches in Greenville means that it is one of the snowiest places in Maine.

December is the snowiest month in Missoula with 11.1 inches of snow, and 7 months of the year have significant snowfall.

December is the snowiest month in Greenville with 22.0 inches of snow, and 7 months of the year have significant snowfall.