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

2025 Compare Climate & Weather:
Helena, MT vs Gillette, WY

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Highlights

On average, there are 209 sunny days per year in Gillette. Helena averages 189 sunny days per year. The US average is 205 sunny days.

Gillette, Wyoming gets 15.4 inches of rain, on average, per year. Helena, Montana gets 12.6 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Gillette averages 52.6 inches of snow per year. Helena averages 42.1 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Gillette, Wyoming
Summer High:
the July high is around 86.8 degrees
Winter Low: the January low is 12.9
Rain: averages 15.4 inches of rain a year
Snow: averages 52.6 inches of snow a year

Helena, Montana
Summer High:
the July high is around 83.4 degrees
Winter Low: the January low is 13.8
Rain: averages 12.6 inches of rain a year
Snow: averages 42.1 inches of snow a year

BestPlaces Comfort Index
Gillette

The annual BestPlaces Comfort Index for Gillette 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 Gillette, while December and January are the least comfortable months.

Helena

The annual BestPlaces Comfort Index for Helena is 6.6 (10=best), which means it is about average compared to other places in Montana.

6.6 / 10
July, August and June are the most pleasant months in Helena, while December and January are the least comfortable months.

Average Monthly High / Low (°F)
MonthHelena, MTGillette, WY
January32° / 14°37° / 13°
February37° / 17°38° / 16°
March46° / 24°47° / 23°
April56° / 31°56° / 30°
May65° / 39°66° / 40°
June74° / 47°77° / 48°
July83° / 52°87° / 56°
August83° / 51°86° / 54°
September71° / 43°74° / 44°
October57° / 33°59° / 32°
November41° / 23°45° / 21°
December32° / 14°35° / 12°
Hot, Freezing, Rainy, Snowy Days: Helena / Gillette
MonthHot DaysFreezing DaysRainy DaysSnowy Days
January0 / 029 / 306 / 55 / 5
February0 / 026 / 276 / 54 / 5
March0 / 026 / 277 / 74 / 5
April0 / 016 / 188 / 92 / 3
May0 / 05 / 511 / 101 / 1
June1 / 30 / 011 / 90 / 0
July7 / 120 / 08 / 70 / 0
August6 / 100 / 07 / 60 / 0
September1 / 32 / 26 / 61 / 0
October0 / 013 / 156 / 71 / 2
November0 / 024 / 267 / 54 / 4
December0 / 029 / 307 / 65 / 6
July is the hottest month for Helena with an average high temperature of 83.4°, which ranks it as cooler than most places in Montana. In Helena, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Helena are June, August and July.

July is the hottest month for Gillette with an average high temperature of 86.8°, which ranks it as warmer than most places in Wyoming. In Gillette, there are 2 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Gillette are June, September and August.
December has the coldest nighttime temperatures for Helena with an average of 13.6°. This is about average compared to other places in Montana.

December has the coldest nighttime temperatures for Gillette with an average of 12.1°. This is warmer than most places in Wyoming.

In Helena, there are 15.5 days annually when the high temperature is over 90°, which is cooler than most places in Montana.

In Gillette, there are 28.1 days annually when the high temperature is over 90°, which is hotter than most places in Wyoming.

In Helena, there are 170.2 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Montana.

In Gillette, there are 178.0 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Wyoming.

In Helena, there are 16.6 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Montana.

In Gillette, there are 16.9 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Wyoming.

June is the wettest month in Helena with 2.1 inches of rain, and the driest month is January with 0.4 inches. The wettest season is Autumn with 37% of yearly precipitation and 10% occurs in Spring, which is the driest season. The annual rainfall of 12.6 inches in Helena means that it is drier than most places in Montana.


May is the wettest month in Gillette with 2.8 inches of rain, and the driest month is January with 0.4 inches. The wettest season is Summer with 36% of yearly precipitation and 9% occurs in Spring, which is the driest season. The annual rainfall of 15.4 inches in Gillette means that it is wetter than most places in Wyoming.

May is the rainiest month in Helena with 11.0 days of rain, and February is the driest month with only 5.5 rainy days. There are 89.6 rainy days annually in Helena, which is about average compared to other places in Montana. The rainiest season is Summer when it rains 29% of the time and the driest is Spring with only a 21% chance of a rainy day.

May is the rainiest month in Gillette with 9.8 days of rain, and January is the driest month with only 5.1 rainy days. There are 80.3 rainy days annually in Gillette, which is rainier than most places in Wyoming. The rainiest season is Summer when it rains 31% of the time and the driest is Spring with only a 20% chance of a rainy day.

An annual snowfall of 42.1 inches in Helena means that it is about average compared to other places in Montana.

An annual snowfall of 52.6 inches in Gillette means that it is about average compared to other places in Wyoming.
March is the snowiest month in Helena with 7.4 inches of snow, and 9 months of the year have significant snowfall.

March is the snowiest month in Gillette with 10.0 inches of snow, and 9 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 Helena    2 Reviews

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

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 Helena

Reviews for Gillette    2 Reviews

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

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 Gillette

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