2025 Compare Climate & Weather:
Boston, MA vs Big Sky, MT

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Highlights

On average, there are 187 sunny days per year in Big Sky. Boston averages 200 sunny days per year. The US average is 205 sunny days.

Big Sky, Montana gets 20.2 inches of rain, on average, per year. Boston, Massachusetts gets 47.4 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Big Sky averages 46.1 inches of snow per year. Boston averages 48.1 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

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

Boston, Massachusetts
Summer High: the July high is around 82.4 degrees
Winter Low: the January low is 19.2
Rain: averages 47.4 inches of rain a year
Snow: averages 48.1 inches of snow a year

BestPlaces Comfort Index

Big Sky

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.

6 / 10

July, August and September are the most pleasant months in Big Sky, while December and January are the least comfortable months.

Boston

The annual BestPlaces Comfort Index for Boston is 6.9 (10=best), which means it is about average compared to other places in Massachusetts.

6.9 / 10

August, June and September are the most pleasant months in Boston, while January and February are the least comfortable months.

Average Monthly High / Low (°F)

Month	Boston, MA	Big Sky, MT
January	36° / 19°	31° / 8°
February	39° / 22°	35° / 8°
March	46° / 29°	43° / 16°
April	57° / 38°	50° / 22°
May	68° / 47°	59° / 30°
June	77° / 57°	68° / 36°
July	82° / 63°	78° / 40°
August	81° / 61°	77° / 39°
September	73° / 54°	68° / 32°
October	62° / 42°	54° / 24°
November	52° / 34°	38° / 15°
December	41° / 25°	28° / 7°

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

Month	Hot Days	Freezing Days	Rainy Days	Snowy Days
January	0 / 0	27 / 31	12 / 11	7 / 4
February	0 / 0	24 / 28	10 / 9	6 / 3
March	0 / 0	19 / 30	12 / 11	5 / 4
April	0 / 0	6 / 29	12 / 10	1 / 3
May	1 / 0	1 / 21	12 / 13	0 / 1
June	2 / 0	0 / 8	11 / 13	0 / 0
July	5 / 1	0 / 2	10 / 10	0 / 0
August	3 / 1	0 / 3	10 / 9	0 / 0
September	1 / 0	0 / 16	9 / 9	0 / 0
October	0 / 0	4 / 27	10 / 8	0 / 1
November	0 / 0	12 / 29	11 / 10	1 / 4
December	0 / 0	24 / 31	12 / 12	5 / 4

July is the hottest month for Boston with an average high temperature of 82.4°, which ranks it as warmer than most places in Massachusetts. In Boston, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Boston are June, August and July.

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.

January has the coldest nighttime temperatures for Boston with an average of 19.2°. This is about average compared to other places in Massachusetts.

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

In Boston, there are 11.3 days annually when the high temperature is over 90°, which is hotter than most places in Massachusetts.

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 Boston, there are 116.4 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Massachusetts.

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 Boston, there are 1.8 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Massachusetts.

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.

March is the wettest month in Boston with 4.6 inches of rain, and the driest month is February with 3.5 inches. The wettest season is Summer with 26% of yearly precipitation and 24% occurs in Spring, which is the driest season. The annual rainfall of 47.4 inches in Boston means that it is drier than most places in Massachusetts.

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.

May is the rainiest month in Boston with 12.4 days of rain, and September is the driest month with only 8.9 rainy days. There are 130.0 rainy days annually in Boston, which is rainier than most places in Massachusetts. The rainiest season is Summer when it rains 28% of the time and the driest is Winter with only a 23% chance of a rainy day.

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.

An annual snowfall of 48.1 inches in Boston means that it is snowier than most places in Massachusetts.

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

January is the snowiest month in Boston with 14.2 inches of snow, and 6 months of the year have significant snowfall.

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

DID YOU KNOW?

Many people confuse Weather and Climate, but they are different. Weather refers to the conditions of the atmosphere over a short period of time, while Climate refers to the conditions of the atmosphere over a long period of time.

Weather, more specifically, refers to how the atmosphere behaves and its effects on life and human activities. Most people think of Weather in terms of what can be observed: temperature, humidity, precipitation, and cloudy/sunny conditions. Weather conditions constantly change on a minute-to-minute basis.

Climate is a record of the average weather conditions for a given place over a long period of time, often referred to as Climate Normals. A 30-year period of record is a common requirement to be considered a Climate Normal.

Reviews for Boston 2 Reviews

Jill · Sherman Oaks, CA

re:

Over 16 years ago

Hi. I'd like to know if you still feel the same way about living in Broomfield. I went there this past July to check it out (along with Lafayette, Boulder (can't More

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NC For Me · Apex, NC

re:

Over 16 years ago

Apex is perfect for what you are looking for. It's close enough to Raleigh, Durham, Chapel Hill to find a job and Cary the next town over, is a little more expensive but More

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Reviews for Big Sky 2 Reviews

Jill · Sherman Oaks, CA

re:

Over 16 years ago

Hi. I'd like to know if you still feel the same way about living in Broomfield. I went there this past July to check it out (along with Lafayette, Boulder (can't More

| Reply

NC For Me · Apex, NC

re:

Over 16 years ago

Apex is perfect for what you are looking for. It's close enough to Raleigh, Durham, Chapel Hill to find a job and Cary the next town over, is a little more expensive but More

| Reply

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See all reviews

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2025 Compare Climate & Weather:
Boston, MA vs Big Sky, MT

Highlights

Weather Highlights

BestPlaces Comfort Index

Average Monthly High / Low (°F)

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

January has the coldest nighttime temperatures for Boston with an average of 19.2°. This is about average compared to other places in Massachusetts.

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

In Boston, there are 11.3 days annually when the high temperature is over 90°, which is hotter than most places in Massachusetts.

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 Boston, there are 116.4 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Massachusetts.

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.

An annual snowfall of 48.1 inches in Boston means that it is snowier than most places in Massachusetts.

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

January is the snowiest month in Boston with 14.2 inches of snow, and 6 months of the year have significant snowfall.

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

DID YOU KNOW?

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Reviews for Big Sky 2 Reviews

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2025 Compare Climate & Weather:Boston, MA vs Big Sky, MT

Highlights

Weather Highlights

BestPlaces Comfort Index

Average Monthly High / Low (°F)

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

January has the coldest nighttime temperatures for Boston with an average of 19.2°. This is about average compared to other places in Massachusetts.December has the coldest nighttime temperatures for Big Sky with an average of 6.5°. This is colder than most places in Montana.

In Boston, there are 11.3 days annually when the high temperature is over 90°, which is hotter than most places in Massachusetts.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 Boston, there are 116.4 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Massachusetts.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 Boston, there are 1.8 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Massachusetts.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.

An annual snowfall of 48.1 inches in Boston means that it is snowier than most places in Massachusetts.An annual snowfall of 46.1 inches in Big Sky means that it is snowier than most places in Montana.

January is the snowiest month in Boston with 14.2 inches of snow, and 6 months of the year have significant snowfall.January is the snowiest month in Big Sky with 8.6 inches of snow, and 8 months of the year have significant snowfall.

DID YOU KNOW?

Reviews for Boston 2 Reviews

Reviews for Big Sky 2 Reviews

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Zips In Boston, Massachusetts

Zips In BIG SKY, MONTANA

Learn More About BOSTON, MASSACHUSETTS

Learn More About Big Sky, Montana

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2025 Compare Climate & Weather:
Boston, MA vs Big Sky, MT

January has the coldest nighttime temperatures for Boston with an average of 19.2°. This is about average compared to other places in Massachusetts.

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

In Boston, there are 11.3 days annually when the high temperature is over 90°, which is hotter than most places in Massachusetts.

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 Boston, there are 116.4 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Massachusetts.

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.

An annual snowfall of 48.1 inches in Boston means that it is snowier than most places in Massachusetts.

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

January is the snowiest month in Boston with 14.2 inches of snow, and 6 months of the year have significant snowfall.

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