2025 Compare Climate & Weather:
Round Rock, TX vs Fort Collins, CO

Highlights

On average, there are 237 sunny days per year in Fort Collins. Round Rock averages 232 sunny days per year. The US average is 205 sunny days.

Fort Collins, Colorado gets 15.6 inches of rain, on average, per year. Round Rock, Texas gets 36 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Fort Collins averages 48.1 inches of snow per year. Round Rock averages 0.2 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Fort Collins, Colorado
Summer High: the July high is around 87 degrees
Winter Low: the January low is 15.3
Rain: averages 15.6 inches of rain a year
Snow: averages 48.1 inches of snow a year

Round Rock, Texas
Summer High: the July high is around 95 degrees
Winter Low: the January low is 38
Rain: averages 36 inches of rain a year
Snow: averages 0.2 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Fort Collins is 7.2 (10=best), which means it is more comfortable than most places in Colorado.

The annual BestPlaces Comfort Index for Round Rock is 7.2 (10=best), which means it is more comfortable than most places in Texas.

Today's Weather - Round Rock, TX

72°F

Today's Weather - Fort Collins, CO

42°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Round Rock / Fort Collins

August is the hottest month for Round Rock with an average high temperature of 96.3°, which ranks it as warmer than most places in Texas. In Round Rock, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Round Rock are April, October and March.

July is the hottest month for Fort Collins with an average high temperature of 87.0°, which ranks it as about average compared to other places in Colorado. In Fort Collins, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Fort Collins are September, June and August.

January has the coldest nighttime temperatures for Round Rock with an average of 38.0°. This is about average compared to other places in Texas.

December has the coldest nighttime temperatures for Fort Collins with an average of 14.9°. This is about average compared to other places in Colorado.

In Round Rock, there are 104.7 days annually when the high temperature is over 90°, which is hotter than most places in Texas.

In Fort Collins, there are 23.6 days annually when the high temperature is over 90°, which is about average compared to other places in Colorado.

In Round Rock, there are 22.7 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Texas.

In Fort Collins, there are 163.6 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Colorado.

In Round Rock, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Texas.

In Fort Collins, there are 7.1 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Colorado.

June is the wettest month in Round Rock with 4.6 inches of rain, and the driest month is January with 2.2 inches. The wettest season is Winter with 28% of yearly precipitation and 19% occurs in Spring, which is the driest season. The annual rainfall of 36.0 inches in Round Rock means that it is about average compared to other places in Texas.


May is the wettest month in Fort Collins with 2.4 inches of rain, and the driest month is January with 0.4 inches. The wettest season is Summer with 39% of yearly precipitation and 8% occurs in Spring, which is the driest season. The annual rainfall of 15.6 inches in Fort Collins means that it is drier than most places in Colorado.

March is the rainiest month in Round Rock with 8.3 days of rain, and August is the driest month with only 4.4 rainy days. There are 78.4 rainy days annually in Round Rock, which is rainier than most places in Texas. The rainiest season is Summer when it rains 29% of the time and the driest is Autumn with only a 21% chance of a rainy day.

May is the rainiest month in Fort Collins with 11.2 days of rain, and December is the driest month with only 4.5 rainy days. There are 89.8 rainy days annually in Fort Collins, which is rainier than most places in Colorado. The rainiest season is Autumn when it rains 31% of the time and the driest is Spring with only a 16% chance of a rainy day.

An annual snowfall of 0.2 inches in Round Rock means that it is about average compared to other places in Texas.

An annual snowfall of 48.1 inches in Fort Collins means that it is about average compared to other places in Colorado.

February is the snowiest month in Round Rock with 0.1 inches of snow, and no months of the year have significant snowfall.

March is the snowiest month in Fort Collins with 10.9 inches of snow, and 9 months of the year have significant snowfall.