The remote server returned an error: (400) Bad Request.The remote server returned an error: (400) Bad Request. 2025 Compare Climate & Weather: Hamilton, MT vs Thermopolis, WY

2025 Compare Climate & Weather:
Hamilton, MT vs Thermopolis, WY

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Highlights

On average, there are 235 sunny days per year in Thermopolis. Hamilton averages 158 sunny days per year. The US average is 205 sunny days.

Thermopolis, Wyoming gets 11.1 inches of rain, on average, per year. Hamilton, Montana gets 13.1 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Thermopolis averages 21.8 inches of snow per year. Hamilton averages 32.1 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Thermopolis, Wyoming
Summer High: the July high is around 90.4 degrees
Winter Low: the January low is 6.5
Rain: averages 11.1 inches of rain a year
Snow: averages 21.8 inches of snow a year

Hamilton, Montana
Summer High: the July high is around 84.2 degrees
Winter Low: the January low is 18.8
Rain: averages 13.1 inches of rain a year
Snow: averages 32.1 inches of snow a year

BestPlaces Comfort Index
Thermopolis

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

7 / 10
June, September and May are the most pleasant months in Thermopolis, while December and January are the least comfortable months.

Hamilton

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

6.8 / 10
July, August and June are the most pleasant months in Hamilton, while December and January are the least comfortable months.

Average Monthly High / Low (°F)
MonthHamilton, MTThermopolis, WY
January36° / 19°36° / 7°
February41° / 20°41° / 12°
March50° / 26°52° / 22°
April58° / 32°61° / 31°
May67° / 39°71° / 41°
June75° / 45°81° / 49°
July84° / 50°90° / 56°
August83° / 48°89° / 54°
September72° / 41°77° / 43°
October59° / 32°62° / 32°
November43° / 24°47° / 19°
December33° / 17°34° / 7°
Hot, Freezing, Rainy, Snowy Days: Hamilton / Thermopolis
MonthHot DaysFreezing DaysRainy DaysSnowy Days
January0 / 028 / 319 / 36 / 2
February0 / 026 / 288 / 34 / 2
March0 / 025 / 2710 / 52 / 2
April0 / 015 / 169 / 71 / 1
May0 / 15 / 311 / 80 / 0
June1 / 60 / 011 / 80 / 0
July8 / 170 / 07 / 50 / 0
August6 / 150 / 08 / 50 / 0
September1 / 33 / 37 / 50 / 0
October0 / 015 / 168 / 50 / 1
November0 / 024 / 2710 / 43 / 2
December0 / 029 / 3110 / 46 / 3
July is the hottest month for Hamilton with an average high temperature of 84.2°, which ranks it as about average compared to other places in Montana. In Hamilton, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Hamilton are June, August and September.

July is the hottest month for Thermopolis with an average high temperature of 90.4°, which ranks it as one of the hottest places in Wyoming. In Thermopolis, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Thermopolis are September, June and May.
December has the coldest nighttime temperatures for Hamilton with an average of 16.8°. This is warmer than most places in Montana.

January has the coldest nighttime temperatures for Thermopolis with an average of 6.5°. This is colder than most places in Wyoming.

In Hamilton, there are 15.4 days annually when the high temperature is over 90°, which is cooler than most places in Montana.

In Thermopolis, there are 41.4 days annually when the high temperature is over 90°, which is one of the hottest places in Wyoming.

In Hamilton, there are 169.2 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Montana.

In Thermopolis, there are 181.9 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Wyoming.

In Hamilton, there are 7.7 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Montana.

In Thermopolis, there are 23.0 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Wyoming.

June is the wettest month in Hamilton with 1.7 inches of rain, and the driest month is February with 0.7 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 13.1 inches in Hamilton means that it is drier than most places in Montana.


May is the wettest month in Thermopolis with 1.8 inches of rain, and the driest month is January with 0.3 inches. The wettest season is Summer with 37% of yearly precipitation and 10% occurs in Spring, which is the driest season. The annual rainfall of 11.1 inches in Thermopolis means that it is drier than most places in Wyoming.

June is the rainiest month in Hamilton with 11.0 days of rain, and July is the driest month with only 6.6 rainy days. There are 106.4 rainy days annually in Hamilton, 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 24% chance of a rainy day.

May is the rainiest month in Thermopolis with 8.1 days of rain, and January is the driest month with only 3.2 rainy days. There are 60.8 rainy days annually in Thermopolis, which is less rainy than most places in Wyoming. The rainiest season is Summer when it rains 32% of the time and the driest is Spring with only a 16% chance of a rainy day.

An annual snowfall of 32.1 inches in Hamilton means that it is less snowy than most places in Montana.

An annual snowfall of 21.8 inches in Thermopolis means that it is one of the least snowy places in Wyoming.
December is the snowiest month in Hamilton with 9.4 inches of snow, and 6 months of the year have significant snowfall.

January is the snowiest month in Thermopolis with 4.1 inches of snow, and 7 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 Hamilton    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 Hamilton

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Reviews for Thermopolis    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 Thermopolis

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Zips In Hamilton, Montana
59840
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