2025 Compare Climate & Weather:
Troy, MT vs Boulder, MT

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Highlights

On average, there are 188 sunny days per year in Boulder. Troy averages 150 sunny days per year. The US average is 205 sunny days.

Boulder, Montana gets 13.8 inches of rain, on average, per year. Troy, Montana gets 22 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Boulder averages 54.5 inches of snow per year. Troy averages 44.4 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Boulder, Montana
Summer High: the July high is around 81.2 degrees
Winter Low: the January low is 12
Rain: averages 13.8 inches of rain a year
Snow: averages 54.5 inches of snow a year

Troy, Montana
Summer High: the July high is around 84.3 degrees
Winter Low: the January low is 20.6
Rain: averages 22 inches of rain a year
Snow: averages 44.4 inches of snow a year

BestPlaces Comfort Index
Boulder

The annual BestPlaces Comfort Index for Boulder is 6.4 (10=best), which means it is less comfortable than most places in Montana.

6.4 / 10
July, August and June are the most pleasant months in Boulder, while December and January are the least comfortable months.

Troy

The annual BestPlaces Comfort Index for Troy is 6.5 (10=best), which means it is less comfortable than most places in Montana.

6.5 / 10
July, August and June are the most pleasant months in Troy, while December and January are the least comfortable months.

Today's Weather - Troy, MT

10 PM PST

Showers And Thunderstorms

53°F

DAYDESCRIPTIONHIGH / LOWWIND
TonightShowers And Thunderstorms43° / 65°W 2 mph
Monday NightChance Light Rain40° / 61°SW 2 to 6 mph
Tuesday NightChance Light Rain41° / 62°WSW 3 mph
Wednesday NightChance Light Rain42° / 65°SW 2 to 6 mph
Thursday NightMostly Cloudy then Chance Light Rain42° / 63°SW 5 mph
Friday NightChance Light Rain42° / 68°SSW 3 mph
Saturday NightChance Light Rain41° / 68°WSW 3 mph
Today's Weather - Boulder, MT

10 PM PST

Slight Chance Showers And Thunderstorms

53°F

DAYDESCRIPTIONHIGH / LOWWIND
TonightSlight Chance Showers And Thunderstorms46° / 66°SSE 6 mph
Monday NightRain Showers Likely38° / 51°WNW 2 to 16 mph
Tuesday NightRain Showers Likely38° / 53°NNW 5 to 10 mph
Wednesday NightChance Rain Showers38° / 54°WNW 6 to 14 mph
Thursday NightSlight Chance Rain Showers then Mostly Cloudy37° / 57°NW 1 to 8 mph
Friday NightChance Rain Showers39° / 59°W 2 to 8 mph
Saturday NightChance Rain Showers39° / 55°NW 3 to 8 mph
Average Monthly High / Low (°F)
MonthTroy, MTBoulder, MT
January33° / 21°34° / 12°
February40° / 22°37° / 14°
March49° / 27°45° / 21°
April59° / 32°54° / 27°
May69° / 39°63° / 35°
June75° / 45°71° / 42°
July84° / 48°81° / 48°
August85° / 47°81° / 46°
September73° / 41°70° / 37°
October57° / 33°56° / 28°
November41° / 28°41° / 19°
December32° / 20°32° / 10°
Hot, Freezing, Rainy, Snowy Days: Troy / Boulder
MonthHot DaysFreezing DaysRainy DaysSnowy Days
January0 / 028 / 3014 / 67 / 6
February0 / 025 / 2711 / 54 / 6
March0 / 025 / 2912 / 62 / 7
April0 / 017 / 2311 / 81 / 5
May1 / 04 / 1012 / 110 / 2
June1 / 10 / 112 / 110 / 0
July8 / 40 / 07 / 80 / 0
August9 / 30 / 16 / 80 / 0
September2 / 02 / 78 / 60 / 1
October0 / 012 / 2011 / 60 / 3
November0 / 020 / 2816 / 63 / 6
December0 / 027 / 3114 / 67 / 7
August is the hottest month for Troy with an average high temperature of 84.7°, which ranks it as about average compared to other places in Montana. In Troy, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Troy are June, September and July.

July is the hottest month for Boulder with an average high temperature of 81.2°, which ranks it as cooler than most places in Montana. In Boulder, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Boulder are August, July and June.
December has the coldest nighttime temperatures for Troy with an average of 20.3°. This is one of the warmest places in Montana.

December has the coldest nighttime temperatures for Boulder with an average of 10.3°. This is colder than most places in Montana.

In Troy, there are 20.8 days annually when the high temperature is over 90°, which is hotter than most places in Montana.

In Boulder, there are 7.5 days annually when the high temperature is over 90°, which is cooler than most places in Montana.

In Troy, there are 161.0 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Montana.

In Boulder, there are 204.4 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Montana.

In Troy, there are 4.7 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in Montana.

In Boulder, there are 19.8 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Montana.

November is the wettest month in Troy with 3.1 inches of rain, and the driest month is August with 1.0 inches. The wettest season is Spring with 29% of yearly precipitation and 20% occurs in Autumn, which is the driest season. The annual rainfall of 22.0 inches in Troy means that it is one of the wettest places in Montana.


June is the wettest month in Boulder with 2.3 inches of rain, and the driest month is February with 0.5 inches. The wettest season is Autumn with 38% of yearly precipitation and 12% occurs in Spring, which is the driest season. The annual rainfall of 13.8 inches in Boulder means that it is drier than most places in Montana.

November is the rainiest month in Troy with 15.5 days of rain, and August is the driest month with only 6.2 rainy days. There are 132.4 rainy days annually in Troy, which is one of the rainiest places in Montana. The rainiest season is Spring when it rains 29% of the time and the driest is Autumn with only a 18% chance of a rainy day.

May is the rainiest month in Boulder with 11.3 days of rain, and February is the driest month with only 4.9 rainy days. There are 85.1 rainy days annually in Boulder, which is about average compared to other places in Montana. The rainiest season is Autumn when it rains 30% of the time and the driest is Spring with only a 19% chance of a rainy day.

An annual snowfall of 44.4 inches in Troy means that it is about average compared to other places in Montana.

An annual snowfall of 54.5 inches in Boulder means that it is snowier than most places in Montana.
December is the snowiest month in Troy with 16.2 inches of snow, and 6 months of the year have significant snowfall.

December is the snowiest month in Boulder with 9.2 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 Troy    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 Troy

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Reviews for Boulder    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 Boulder

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