2024 Compare Climate & Weather:
Great Falls, MT vs Riverton, WY
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Highlights
On average, there are 231 sunny days per year in Riverton. Great Falls averages 188 sunny days per year. The US average is 205 sunny days.
Riverton, Wyoming gets 9.5 inches of rain, on average, per year. Great Falls, Montana gets 14.4 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.
Riverton averages 46.4 inches of snow per year. Great Falls averages 58 inches of snow per year. The US average is 27.8 inches of snow per year.
Weather Highlights
Riverton, Wyoming
Summer High: the July high is around 87.3 degrees
Winter Low: the January low is 6
Rain: averages 9.5 inches of rain a year
Snow: averages 46.4 inches of snow a year
Great Falls, Montana
Summer High: the July high is around 85.3 degrees
Winter Low: the January low is 16.6
Rain: averages 14.4 inches of rain a year
Snow: averages 58 inches of snow a year
BESTPLACES COMFORT INDEX
RivertonThe annual BestPlaces Comfort Index for Riverton is 6.9 (10=best), which means it is more comfortable than most places in Wyoming.
6.9 / 10
June, August and July are the most pleasant months in Riverton, while December and January are the least comfortable months.
Great FallsThe annual BestPlaces Comfort Index for Great Falls 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 Great Falls, while January and December are the least comfortable months.
Today's Weather - Great Falls, MT
3 AM PST
Rain And Snow
34°F
| DAY | DESCRIPTION | HIGH / LOW | WIND |
|---|
| Overnight | Rain And Snow | 33° / 41° | W 14 mph |
| Thursday Night | Rain And Snow Showers Likely | 31° / 52° | WNW 8 to 14 mph |
| Friday Night | Mostly Clear | 26° / 65° | ESE 3 to 7 mph |
| Saturday Night | Mostly Cloudy then Slight Chance Rain Showers | 41° / 62° | E 7 to 13 mph |
| Sunday Night | Rain Showers Likely | 42° / 58° | W 12 mph |
| Monday Night | Chance Rain Showers | 40° / 56° | W 18 to 22 mph |
| Tuesday Night | Chance Rain Showers | 37° / 53° | W 15 to 21 mph |
Today's Weather - Riverton, WY
3 AM PST
Mostly Clear
32°F
| DAY | DESCRIPTION | HIGH / LOW | WIND |
|---|
| Overnight | Mostly Clear | 30° / 55° | WNW 10 to 15 mph |
| Thursday Night | Mostly Cloudy then Slight Chance Snow Showers | 32° / 53° | NNW 7 to 14 mph |
| Friday Night | Mostly Clear | 29° / 72° | NW 6 to 9 mph |
| Saturday Night | Partly Cloudy | 41° / 73° | SSE 8 to 14 mph |
| Sunday Night | Chance Rain Showers | 40° / 57° | SSW 17 to 22 mph |
| Monday Night | Partly Cloudy | 36° / 59° | W 13 to 17 mph |
| Tuesday Night | Slight Chance Rain Showers then Slight Chance Rain And Snow Showers | 33° / 56° | W 12 to 17 mph |
Average Monthly High / Low (°F)
| Month | Great Falls, MT | Riverton, WY |
|---|
| January | 37° / 17° | 32° / 6° |
| February | 40° / 17° | 38° / 10° |
| March | 48° / 24° | 49° / 21° |
| April | 58° / 33° | 59° / 29° |
| May | 67° / 41° | 68° / 39° |
| June | 76° / 49° | 79° / 47° |
| July | 85° / 54° | 87° / 53° |
| August | 84° / 53° | 86° / 51° |
| September | 72° / 44° | 74° / 41° |
| October | 60° / 35° | 59° / 30° |
| November | 45° / 25° | 43° / 17° |
| December | 36° / 17° | 32° / 6° |
Hot, Freezing, Rainy, Snowy Days: Great Falls / Riverton
| Month | Hot Days | Freezing Days | Rainy Days | Snowy Days |
|---|
| January | 0 / 0 | 26 / 31 | 6 / 2 | 6 / 3 |
| February | 0 / 0 | 25 / 28 | 6 / 2 | 6 / 4 |
| March | 0 / 0 | 24 / 28 | 8 / 3 | 6 / 4 |
| April | 0 / 0 | 14 / 20 | 9 / 5 | 4 / 3 |
| May | 0 / 0 | 3 / 5 | 11 / 6 | 1 / 1 |
| June | 1 / 3 | 0 / 0 | 12 / 5 | 0 / 0 |
| July | 9 / 12 | 0 / 0 | 7 / 4 | 0 / 0 |
| August | 8 / 9 | 0 / 0 | 7 / 4 | 0 / 0 |
| September | 2 / 1 | 1 / 4 | 7 / 4 | 1 / 0 |
| October | 0 / 0 | 11 / 19 | 6 / 3 | 2 / 2 |
| November | 0 / 0 | 21 / 28 | 6 / 3 | 5 / 3 |
| December | 0 / 0 | 26 / 31 | 6 / 2 | 6 / 4 |
July is the hottest month for Great Falls with an average high temperature of 85.3°, which ranks it as warmer than most places in Montana. In Great Falls, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Great Falls are June, September and August.
July is the hottest month for Riverton with an average high temperature of 87.3°, which ranks it as warmer than most places in Wyoming. In Riverton, there are 2 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Riverton are June, September and August.
January has the coldest nighttime temperatures for Great Falls with an average of 16.6°. This is warmer than most places in Montana.
December has the coldest nighttime temperatures for Riverton with an average of 5.8°. This is colder than most places in Wyoming.
In Great Falls, there are 20.9 days annually when the high temperature is over 90°, which is hotter than most places in Montana.
In Riverton, there are 25.1 days annually when the high temperature is over 90°, which is hotter than most places in Wyoming.
In Great Falls, there are 151.3 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Montana.
In Riverton, there are 194.3 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Wyoming.
In Great Falls, 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 Riverton, there are 27.0 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Wyoming.
June is the wettest month in Great Falls with 2.5 inches of rain, and the driest month is January with 0.5 inches. The wettest season is Autumn with 38% of yearly precipitation and 10% occurs in Spring, which is the driest season. The annual rainfall of 14.4 inches in Great Falls means that it is about average compared to other places in Montana.
May is the wettest month in Riverton with 1.7 inches of rain, and the driest month is January with 0.3 inches. The wettest season is Summer with 38% of yearly precipitation and 10% occurs in Spring, which is the driest season. The annual rainfall of 9.5 inches in Riverton means that it is drier than most places in Wyoming.
June is the rainiest month in Great Falls with 11.5 days of rain, and November is the driest month with only 5.6 rainy days. There are 89.8 rainy days annually in Great Falls, which is about average compared to other places in Montana. The rainiest season is Summer when it rains 30% of the time and the driest is Spring with only a 20% chance of a rainy day.
May is the rainiest month in Riverton with 6.4 days of rain, and December is the driest month with only 2.2 rainy days. There are 44.5 rainy days annually in Riverton, which is one of the least rainy 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 58.0 inches in Great Falls means that it is snowier than most places in Montana.
An annual snowfall of 46.4 inches in Riverton means that it is about average compared to other places in Wyoming.
March is the snowiest month in Great Falls with 10.4 inches of snow, and 9 months of the year have significant snowfall.
March is the snowiest month in Riverton with 8.2 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 Great Falls 
2 Reviews
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
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
Start Your Review of Great Falls
Reviews for Riverton 2 Reviews
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
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
Start Your Review of Riverton
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