2025 Compare Climate & Weather:
Cheyenne, WY vs Altamont, OR

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Highlights

On average, there are 214 sunny days per year in Altamont. Cheyenne averages 236 sunny days per year. The US average is 205 sunny days.

Altamont, Oregon gets 16.2 inches of rain, on average, per year. Cheyenne, Wyoming gets 16.5 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Altamont averages 37.6 inches of snow per year. Cheyenne averages 58.3 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Altamont, Oregon
Summer High: the July high is around 86.2 degrees
Winter Low: the January low is 21.8
Rain: averages 16.2 inches of rain a year
Snow: averages 37.6 inches of snow a year

Cheyenne, Wyoming
Summer High: the July high is around 84.2 degrees
Winter Low: the January low is 16.4
Rain: averages 16.5 inches of rain a year
Snow: averages 58.3 inches of snow a year

BestPlaces Comfort Index

Altamont

The annual BestPlaces Comfort Index for Altamont is 7.0 (10=best), which means it is less comfortable than most places in Oregon.

7 / 10

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

Cheyenne

The annual BestPlaces Comfort Index for Cheyenne is 6.8 (10=best), which means it is more comfortable than most places in Wyoming.

6.8 / 10

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

Average Monthly High / Low (°F)

Month	Cheyenne, WY	Altamont, OR
January	41° / 16°	41° / 22°
February	42° / 17°	46° / 24°
March	48° / 23°	53° / 28°
April	56° / 30°	59° / 31°
May	66° / 39°	68° / 38°
June	76° / 48°	77° / 44°
July	84° / 54°	86° / 50°
August	82° / 53°	86° / 48°
September	73° / 44°	78° / 41°
October	60° / 33°	65° / 33°
November	48° / 23°	48° / 26°
December	39° / 16°	40° / 21°

Hot, Freezing, Rainy, Snowy Days: Cheyenne / Altamont

Month	Hot Days	Freezing Days	Rainy Days	Snowy Days
January	0 / 0	29 / 27	4 / 13	5 / 5
February	0 / 0	27 / 23	5 / 11	5 / 3
March	0 / 0	27 / 23	7 / 11	6 / 3
April	0 / 0	18 / 17	9 / 9	5 / 1
May	0 / 1	4 / 6	11 / 8	1 / 0
June	2 / 2	0 / 1	11 / 5	0 / 0
July	7 / 10	0 / 0	10 / 3	0 / 0
August	4 / 9	0 / 0	10 / 3	0 / 0
September	1 / 2	2 / 3	8 / 3	1 / 0
October	0 / 0	13 / 15	6 / 6	3 / 0
November	0 / 0	25 / 24	6 / 12	5 / 3
December	0 / 0	29 / 28	5 / 13	5 / 5

July is the hottest month for Cheyenne with an average high temperature of 84.2°, which ranks it as cooler than most places in Wyoming. In Cheyenne, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Cheyenne are June, August and September.

July is the hottest month for Altamont with an average high temperature of 86.2°, which ranks it as warmer than most places in Oregon. In Altamont, there are 2 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Altamont are September, June and August.

December has the coldest nighttime temperatures for Cheyenne with an average of 15.8°. This is one of the warmest places in Wyoming.

December has the coldest nighttime temperatures for Altamont with an average of 21.1°. This is colder than most places in Oregon.

In Cheyenne, there are 14.0 days annually when the high temperature is over 90°, which is about average compared to other places in Wyoming.

In Altamont, there are 24.2 days annually when the high temperature is over 90°, which is hotter than most places in Oregon.

In Cheyenne, there are 173.4 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Wyoming.

In Altamont, there are 167.2 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Oregon.

In Cheyenne, there are 8.6 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in Wyoming.

In Altamont, there are 1.6 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Oregon.

June is the wettest month in Cheyenne with 2.5 inches of rain, and the driest month is January with 0.3 inches. The wettest season is Autumn with 41% of yearly precipitation and 8% occurs in Spring, which is the driest season. The annual rainfall of 16.5 inches in Cheyenne means that it is wetter than most places in Wyoming.

December is the wettest month in Altamont with 2.6 inches of rain, and the driest month is July with 0.5 inches. The wettest season is Spring with 41% of yearly precipitation and 13% occurs in Autumn, which is the driest season. The annual rainfall of 16.2 inches in Altamont means that it is drier than most places in Oregon.

May is the rainiest month in Cheyenne with 11.2 days of rain, and January is the driest month with only 4.2 rainy days. There are 91.9 rainy days annually in Cheyenne, which is rainier than most places in Wyoming. The rainiest season is Autumn when it rains 33% of the time and the driest is Spring with only a 16% chance of a rainy day.

December is the rainiest month in Altamont with 12.8 days of rain, and July is the driest month with only 2.5 rainy days. There are 95.3 rainy days annually in Altamont, which is less rainy than most places in Oregon. The rainiest season is Spring when it rains 38% of the time and the driest is Autumn with only a 11% chance of a rainy day.

An annual snowfall of 58.3 inches in Cheyenne means that it is snowier than most places in Wyoming.

An annual snowfall of 37.6 inches in Altamont means that it is one of the snowiest places in Oregon.

March is the snowiest month in Cheyenne with 11.0 inches of snow, and 9 months of the year have significant snowfall.

December is the snowiest month in Altamont with 12.6 inches of snow, and 6 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 Cheyenne 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

| Reply

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Reviews for Altamont 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:
Cheyenne, WY vs Altamont, OR

Highlights

Weather Highlights

BestPlaces Comfort Index

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Cheyenne / Altamont

December has the coldest nighttime temperatures for Cheyenne with an average of 15.8°. This is one of the warmest places in Wyoming.

December has the coldest nighttime temperatures for Altamont with an average of 21.1°. This is colder than most places in Oregon.

In Cheyenne, there are 14.0 days annually when the high temperature is over 90°, which is about average compared to other places in Wyoming.

In Altamont, there are 24.2 days annually when the high temperature is over 90°, which is hotter than most places in Oregon.

In Cheyenne, there are 173.4 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Wyoming.

In Altamont, there are 167.2 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Oregon.

In Cheyenne, there are 8.6 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in Wyoming.

In Altamont, there are 1.6 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Oregon.

An annual snowfall of 58.3 inches in Cheyenne means that it is snowier than most places in Wyoming.

An annual snowfall of 37.6 inches in Altamont means that it is one of the snowiest places in Oregon.

March is the snowiest month in Cheyenne with 11.0 inches of snow, and 9 months of the year have significant snowfall.

December is the snowiest month in Altamont with 12.6 inches of snow, and 6 months of the year have significant snowfall.

DID YOU KNOW?

Reviews for Cheyenne 2 Reviews

Reviews for Altamont 2 Reviews

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Zips In Cheyenne, Wyoming

Zips In ALTAMONT, OREGON

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2025 Compare Climate & Weather:Cheyenne, WY vs Altamont, OR

Highlights

Weather Highlights

BestPlaces Comfort Index

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Cheyenne / Altamont

December has the coldest nighttime temperatures for Cheyenne with an average of 15.8°. This is one of the warmest places in Wyoming.December has the coldest nighttime temperatures for Altamont with an average of 21.1°. This is colder than most places in Oregon.

In Cheyenne, there are 14.0 days annually when the high temperature is over 90°, which is about average compared to other places in Wyoming.In Altamont, there are 24.2 days annually when the high temperature is over 90°, which is hotter than most places in Oregon.

In Cheyenne, there are 173.4 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Wyoming.In Altamont, there are 167.2 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Oregon.

In Cheyenne, there are 8.6 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in Wyoming.In Altamont, there are 1.6 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Oregon.

An annual snowfall of 58.3 inches in Cheyenne means that it is snowier than most places in Wyoming.An annual snowfall of 37.6 inches in Altamont means that it is one of the snowiest places in Oregon.

March is the snowiest month in Cheyenne with 11.0 inches of snow, and 9 months of the year have significant snowfall.December is the snowiest month in Altamont with 12.6 inches of snow, and 6 months of the year have significant snowfall.

DID YOU KNOW?

Reviews for Cheyenne 2 Reviews

Reviews for Altamont 2 Reviews

Most Recent Searches On Compare Climate & Weather

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Zips In Cheyenne, Wyoming

Zips In ALTAMONT, OREGON

Learn More About CHEYENNE, WYOMING

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BestPlaces Tools

About BestPlaces

Follow Us

2025 Compare Climate & Weather:
Cheyenne, WY vs Altamont, OR

December has the coldest nighttime temperatures for Cheyenne with an average of 15.8°. This is one of the warmest places in Wyoming.

December has the coldest nighttime temperatures for Altamont with an average of 21.1°. This is colder than most places in Oregon.

In Cheyenne, there are 14.0 days annually when the high temperature is over 90°, which is about average compared to other places in Wyoming.

In Altamont, there are 24.2 days annually when the high temperature is over 90°, which is hotter than most places in Oregon.

In Cheyenne, there are 173.4 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Wyoming.

In Altamont, there are 167.2 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Oregon.

In Cheyenne, there are 8.6 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in Wyoming.

In Altamont, there are 1.6 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Oregon.

An annual snowfall of 58.3 inches in Cheyenne means that it is snowier than most places in Wyoming.

An annual snowfall of 37.6 inches in Altamont means that it is one of the snowiest places in Oregon.

March is the snowiest month in Cheyenne with 11.0 inches of snow, and 9 months of the year have significant snowfall.

December is the snowiest month in Altamont with 12.6 inches of snow, and 6 months of the year have significant snowfall.