2025 Compare Climate & Weather:
Bigfork, MT vs Rapid City, SD

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Highlights

On average, there are 226 sunny days per year in Rapid City. Bigfork averages 151 sunny days per year. The US average is 205 sunny days.

Rapid City, South Dakota gets 18.2 inches of rain, on average, per year. Bigfork, Montana gets 23 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Rapid City averages 38 inches of snow per year. Bigfork averages 55.2 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Rapid City, South Dakota
Summer High: the July high is around 85.3 degrees
Winter Low: the January low is 14.2
Rain: averages 18.2 inches of rain a year
Snow: averages 38 inches of snow a year

Bigfork, Montana
Summer High: the July high is around 80 degrees
Winter Low: the January low is 19.3
Rain: averages 23 inches of rain a year
Snow: averages 55.2 inches of snow a year

BestPlaces Comfort Index

Rapid City

The annual BestPlaces Comfort Index for Rapid City is 7.0 (10=best), which means it is one of the most pleasant places in South Dakota.

7 / 10

August, July and June are the most pleasant months in Rapid City, while February and January are the least comfortable months.

Bigfork

The annual BestPlaces Comfort Index for Bigfork is 6.3 (10=best), which means it is less comfortable than most places in Montana.

6.3 / 10

July, August and June are the most pleasant months in Bigfork, while December and January are the least comfortable months.

Average Monthly High / Low (°F)

Month	Bigfork, MT	Rapid City, SD
January	32° / 19°	38° / 14°
February	37° / 20°	39° / 16°
March	45° / 26°	47° / 23°
April	55° / 32°	57° / 32°
May	64° / 39°	67° / 43°
June	71° / 46°	76° / 52°
July	80° / 50°	85° / 59°
August	80° / 48°	85° / 58°
September	69° / 41°	74° / 47°
October	55° / 33°	60° / 35°
November	40° / 26°	47° / 24°
December	31° / 19°	37° / 15°

Hot, Freezing, Rainy, Snowy Days: Bigfork / Rapid City

Month	Hot Days	Freezing Days	Rainy Days	Snowy Days
January	0 / 0	28 / 29	12 / 4	9 / 5
February	0 / 0	25 / 26	9 / 5	6 / 5
March	0 / 0	24 / 25	11 / 6	4 / 4
April	0 / 0	15 / 15	10 / 9	2 / 3
May	0 / 0	4 / 3	12 / 11	0 / 0
June	0 / 2	0 / 0	12 / 12	0 / 0
July	3 / 9	0 / 0	7 / 9	0 / 0
August	3 / 8	0 / 0	6 / 8	0 / 0
September	0 / 2	3 / 1	8 / 6	0 / 0
October	0 / 0	15 / 10	9 / 7	1 / 1
November	0 / 0	22 / 23	12 / 4	5 / 3
December	0 / 0	28 / 29	12 / 4	10 / 4

July is the hottest month for Bigfork with an average high temperature of 80.0°, which ranks it as one of the coolest places in Montana. In Bigfork, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Bigfork are August, July and June.

July is the hottest month for Rapid City with an average high temperature of 85.3°, which ranks it as about average compared to other places in South Dakota. In Rapid City, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Rapid City are June, September and August.

December has the coldest nighttime temperatures for Bigfork with an average of 19.1°. This is warmer than most places in Montana.

January has the coldest nighttime temperatures for Rapid City with an average of 14.2°. This is one of the warmest places in South Dakota.

In Bigfork, there are 6.3 days annually when the high temperature is over 90°, which is one of the coolest places in Montana.

In Rapid City, there are 22.5 days annually when the high temperature is over 90°, which is about average compared to other places in South Dakota.

In Bigfork, there are 166.2 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Montana.

In Rapid City, there are 159.6 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in South Dakota.

In Bigfork, there are 7.5 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Montana.

In Rapid City, there are 14.9 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in South Dakota.

June is the wettest month in Bigfork with 3.1 inches of rain, and the driest month is August with 1.3 inches. The wettest season is Summer with 26% of yearly precipitation and 23% occurs in Spring, which is the driest season. The annual rainfall of 23.0 inches in Bigfork means that it is one of the wettest places in Montana.

May is the wettest month in Rapid City with 3.8 inches of rain, and the driest month is January with 0.3 inches. The wettest season is Autumn with 38% of yearly precipitation and 6% occurs in Spring, which is the driest season. The annual rainfall of 18.2 inches in Rapid City means that it is drier than most places in South Dakota.

December is the rainiest month in Bigfork with 12.4 days of rain, and August is the driest month with only 6.2 rainy days. There are 120.9 rainy days annually in Bigfork, which is rainier than most places in Montana. The rainiest season is Spring when it rains 28% of the time and the driest is Autumn with only a 21% chance of a rainy day.

June is the rainiest month in Rapid City with 11.8 days of rain, and November is the driest month with only 4.0 rainy days. There are 85.4 rainy days annually in Rapid City, which is rainier than most places in South Dakota. The rainiest season is Autumn when it rains 34% of the time and the driest is Spring with only a 15% chance of a rainy day.

An annual snowfall of 55.2 inches in Bigfork means that it is snowier than most places in Montana.

An annual snowfall of 38.0 inches in Rapid City means that it is about average compared to other places in South Dakota.

December is the snowiest month in Bigfork with 17.5 inches of snow, and 7 months of the year have significant snowfall.

March is the snowiest month in Rapid City 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 Bigfork 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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Reviews for Rapid City 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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2025 Compare Climate & Weather:
Bigfork, MT vs Rapid City, SD

Highlights

Weather Highlights

BestPlaces Comfort Index

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Bigfork / Rapid City

December has the coldest nighttime temperatures for Bigfork with an average of 19.1°. This is warmer than most places in Montana.

January has the coldest nighttime temperatures for Rapid City with an average of 14.2°. This is one of the warmest places in South Dakota.

In Bigfork, there are 6.3 days annually when the high temperature is over 90°, which is one of the coolest places in Montana.

In Rapid City, there are 22.5 days annually when the high temperature is over 90°, which is about average compared to other places in South Dakota.

In Bigfork, there are 166.2 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Montana.

In Rapid City, there are 159.6 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in South Dakota.

In Bigfork, there are 7.5 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Montana.

In Rapid City, there are 14.9 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in South Dakota.

An annual snowfall of 55.2 inches in Bigfork means that it is snowier than most places in Montana.

An annual snowfall of 38.0 inches in Rapid City means that it is about average compared to other places in South Dakota.

December is the snowiest month in Bigfork with 17.5 inches of snow, and 7 months of the year have significant snowfall.

March is the snowiest month in Rapid City with 8.6 inches of snow, and 8 months of the year have significant snowfall.

DID YOU KNOW?

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Reviews for Rapid City 2 Reviews

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Zips In Bigfork, Montana

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2025 Compare Climate & Weather:Bigfork, MT vs Rapid City, SD

Highlights

Weather Highlights

BestPlaces Comfort Index

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Bigfork / Rapid City

December has the coldest nighttime temperatures for Bigfork with an average of 19.1°. This is warmer than most places in Montana.January has the coldest nighttime temperatures for Rapid City with an average of 14.2°. This is one of the warmest places in South Dakota.

In Bigfork, there are 6.3 days annually when the high temperature is over 90°, which is one of the coolest places in Montana.In Rapid City, there are 22.5 days annually when the high temperature is over 90°, which is about average compared to other places in South Dakota.

In Bigfork, there are 166.2 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Montana.In Rapid City, there are 159.6 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in South Dakota.

In Bigfork, there are 7.5 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Montana.In Rapid City, there are 14.9 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in South Dakota.

An annual snowfall of 55.2 inches in Bigfork means that it is snowier than most places in Montana.An annual snowfall of 38.0 inches in Rapid City means that it is about average compared to other places in South Dakota.

December is the snowiest month in Bigfork with 17.5 inches of snow, and 7 months of the year have significant snowfall.March is the snowiest month in Rapid City with 8.6 inches of snow, and 8 months of the year have significant snowfall.

DID YOU KNOW?

Reviews for Bigfork 2 Reviews

Reviews for Rapid City 2 Reviews

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Zips In Bigfork, Montana

Zips In RAPID CITY, SOUTH DAKOTA

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Learn More About Rapid City, South Dakota

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2025 Compare Climate & Weather:
Bigfork, MT vs Rapid City, SD

December has the coldest nighttime temperatures for Bigfork with an average of 19.1°. This is warmer than most places in Montana.

January has the coldest nighttime temperatures for Rapid City with an average of 14.2°. This is one of the warmest places in South Dakota.

In Bigfork, there are 6.3 days annually when the high temperature is over 90°, which is one of the coolest places in Montana.

In Rapid City, there are 22.5 days annually when the high temperature is over 90°, which is about average compared to other places in South Dakota.

In Bigfork, there are 166.2 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Montana.

In Rapid City, there are 159.6 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in South Dakota.

In Bigfork, there are 7.5 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Montana.

In Rapid City, there are 14.9 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in South Dakota.

An annual snowfall of 55.2 inches in Bigfork means that it is snowier than most places in Montana.

An annual snowfall of 38.0 inches in Rapid City means that it is about average compared to other places in South Dakota.

December is the snowiest month in Bigfork with 17.5 inches of snow, and 7 months of the year have significant snowfall.

March is the snowiest month in Rapid City with 8.6 inches of snow, and 8 months of the year have significant snowfall.