2025 Compare Climate & Weather:
Challis, ID vs Gardiner, MT

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Highlights

On average, there are 191 sunny days per year in Gardiner. Challis averages 201 sunny days per year. The US average is 205 sunny days.

Gardiner, Montana gets 21.5 inches of rain, on average, per year. Challis, Idaho gets 9.1 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Gardiner averages 156.9 inches of snow per year. Challis averages 21.7 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Gardiner, Montana
Summer High: the July high is around 76.3 degrees
Winter Low: the January low is 5.9
Rain: averages 21.5 inches of rain a year
Snow: averages 156.9 inches of snow a year

Challis, Idaho
Summer High: the July high is around 86.4 degrees
Winter Low: the January low is 8.7
Rain: averages 9.1 inches of rain a year
Snow: averages 21.7 inches of snow a year

BestPlaces Comfort Index

Gardiner

The annual BestPlaces Comfort Index for Gardiner is 5.2 (10=best), which means it is one of the least comfortable places in Montana.

5.2 / 10

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

Challis

The annual BestPlaces Comfort Index for Challis is 6.7 (10=best), which means it is more comfortable than most places in Idaho.

6.7 / 10

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

Average Monthly High / Low (°F)

Month	Challis, ID	Gardiner, MT
January	31° / 9°	28° / 6°
February	37° / 14°	32° / 7°
March	50° / 23°	40° / 14°
April	58° / 29°	47° / 22°
May	67° / 38°	57° / 31°
June	76° / 44°	66° / 37°
July	86° / 50°	76° / 42°
August	85° / 47°	75° / 40°
September	74° / 39°	65° / 33°
October	60° / 29°	51° / 25°
November	42° / 19°	35° / 14°
December	30° / 8°	26° / 5°

Hot, Freezing, Rainy, Snowy Days: Challis / Gardiner

Month	Hot Days	Freezing Days	Rainy Days	Snowy Days
January	0 / 0	31 / 31	4 / 14	3 / 13
February	0 / 0	27 / 28	5 / 12	3 / 11
March	0 / 0	28 / 30	6 / 12	1 / 10
April	0 / 0	20 / 26	6 / 11	1 / 7
May	0 / 0	7 / 18	8 / 13	0 / 3
June	2 / 0	1 / 7	8 / 14	0 / 1
July	11 / 1	0 / 2	5 / 10	0 / 0
August	8 / 0	0 / 4	5 / 10	0 / 0
September	1 / 0	5 / 14	4 / 9	0 / 1
October	0 / 0	20 / 25	4 / 9	0 / 4
November	0 / 0	28 / 28	6 / 12	2 / 11
December	0 / 0	31 / 31	6 / 14	4 / 13

July is the hottest month for Challis with an average high temperature of 86.4°, which ranks it as warmer than most places in Idaho. In Challis, there are 2 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Challis are June, September and August.

July is the hottest month for Gardiner with an average high temperature of 76.3°, which ranks it as one of the coolest places in Montana. In Gardiner, there are 2 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Gardiner are July, August and June.

December has the coldest nighttime temperatures for Challis with an average of 8.3°. This is one of the coldest places in Idaho.

December has the coldest nighttime temperatures for Gardiner with an average of 5.1°. This is colder than most places in Montana.

In Challis, there are 20.9 days annually when the high temperature is over 90°, which is about average compared to other places in Idaho.

In Gardiner, there are 1.2 days annually when the high temperature is over 90°, which is one of the coolest places in Montana.

In Challis, there are 196.3 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Idaho.

In Gardiner, there are 242.6 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in Montana.

In Challis, there are 18.4 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Idaho.

In Gardiner, there are 38.8 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in Montana.

June is the wettest month in Challis with 1.5 inches of rain, and the driest month is January with 0.4 inches. The wettest season is Autumn with 33% of yearly precipitation and 18% occurs in Spring, which is the driest season. The annual rainfall of 9.1 inches in Challis means that it is one of the driest places in Idaho.

May is the wettest month in Gardiner with 2.6 inches of rain, and the driest month is February with 1.4 inches. The wettest season is Summer with 28% of yearly precipitation and 22% occurs in Winter, which is the driest season. The annual rainfall of 21.5 inches in Gardiner means that it is one of the wettest places in Montana.

May is the rainiest month in Challis with 8.1 days of rain, and September is the driest month with only 4.1 rainy days. There are 67.6 rainy days annually in Challis, which is one of the least rainy places in Idaho. The rainiest season is Summer when it rains 29% of the time and the driest is Spring with only a 22% chance of a rainy day.

January is the rainiest month in Gardiner with 13.7 days of rain, and September is the driest month with only 8.8 rainy days. There are 137.9 rainy days annually in Gardiner, which is one of the rainiest places in Montana. The rainiest season is Spring when it rains 28% of the time and the driest is Winter with only a 22% chance of a rainy day.

An annual snowfall of 21.7 inches in Challis means that it is less snowy than most places in Idaho.

An annual snowfall of 156.9 inches in Gardiner means that it is one of the snowiest places in Montana.

December is the snowiest month in Challis with 6.6 inches of snow, and 6 months of the year have significant snowfall.

December is the snowiest month in Gardiner with 30.0 inches of snow, and 10 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 Challis 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 Gardiner 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

Start Your Review of Gardiner

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2025 Compare Climate & Weather:
Challis, ID vs Gardiner, MT

Highlights

Weather Highlights

BestPlaces Comfort Index

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Challis / Gardiner

December has the coldest nighttime temperatures for Challis with an average of 8.3°. This is one of the coldest places in Idaho.

December has the coldest nighttime temperatures for Gardiner with an average of 5.1°. This is colder than most places in Montana.

In Challis, there are 20.9 days annually when the high temperature is over 90°, which is about average compared to other places in Idaho.

In Gardiner, there are 1.2 days annually when the high temperature is over 90°, which is one of the coolest places in Montana.

In Challis, there are 196.3 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Idaho.

In Gardiner, there are 242.6 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in Montana.

In Challis, there are 18.4 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Idaho.

In Gardiner, there are 38.8 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in Montana.

An annual snowfall of 21.7 inches in Challis means that it is less snowy than most places in Idaho.

An annual snowfall of 156.9 inches in Gardiner means that it is one of the snowiest places in Montana.

December is the snowiest month in Challis with 6.6 inches of snow, and 6 months of the year have significant snowfall.

December is the snowiest month in Gardiner with 30.0 inches of snow, and 10 months of the year have significant snowfall.

DID YOU KNOW?

Reviews for Challis 2 Reviews

Reviews for Gardiner 2 Reviews

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2025 Compare Climate & Weather:Challis, ID vs Gardiner, MT

Highlights

Weather Highlights

BestPlaces Comfort Index

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Challis / Gardiner

December has the coldest nighttime temperatures for Challis with an average of 8.3°. This is one of the coldest places in Idaho.December has the coldest nighttime temperatures for Gardiner with an average of 5.1°. This is colder than most places in Montana.

In Challis, there are 20.9 days annually when the high temperature is over 90°, which is about average compared to other places in Idaho.In Gardiner, there are 1.2 days annually when the high temperature is over 90°, which is one of the coolest places in Montana.

In Challis, there are 196.3 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Idaho.In Gardiner, there are 242.6 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in Montana.

In Challis, there are 18.4 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Idaho.In Gardiner, there are 38.8 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in Montana.

An annual snowfall of 21.7 inches in Challis means that it is less snowy than most places in Idaho.An annual snowfall of 156.9 inches in Gardiner means that it is one of the snowiest places in Montana.

December is the snowiest month in Challis with 6.6 inches of snow, and 6 months of the year have significant snowfall.December is the snowiest month in Gardiner with 30.0 inches of snow, and 10 months of the year have significant snowfall.

DID YOU KNOW?

Reviews for Challis 2 Reviews

Reviews for Gardiner 2 Reviews

Most Recent Searches On Compare Climate & Weather

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Zips In Challis, Idaho

Zips In GARDINER, MONTANA

Learn More About CHALLIS, IDAHO

Learn More About Gardiner, Montana

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2025 Compare Climate & Weather:
Challis, ID vs Gardiner, MT

December has the coldest nighttime temperatures for Challis with an average of 8.3°. This is one of the coldest places in Idaho.

December has the coldest nighttime temperatures for Gardiner with an average of 5.1°. This is colder than most places in Montana.

In Challis, there are 20.9 days annually when the high temperature is over 90°, which is about average compared to other places in Idaho.

In Gardiner, there are 1.2 days annually when the high temperature is over 90°, which is one of the coolest places in Montana.

In Challis, there are 196.3 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Idaho.

In Gardiner, there are 242.6 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in Montana.

In Challis, there are 18.4 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Idaho.

In Gardiner, there are 38.8 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in Montana.

An annual snowfall of 21.7 inches in Challis means that it is less snowy than most places in Idaho.

An annual snowfall of 156.9 inches in Gardiner means that it is one of the snowiest places in Montana.

December is the snowiest month in Challis with 6.6 inches of snow, and 6 months of the year have significant snowfall.

December is the snowiest month in Gardiner with 30.0 inches of snow, and 10 months of the year have significant snowfall.