2025 Compare Climate & Weather:
Fort Collins, CO vs Alpharetta, GA

Highlights

On average, there are 218 sunny days per year in Alpharetta. Fort Collins averages 237 sunny days per year. The US average is 205 sunny days.

Alpharetta, Georgia gets 53.4 inches of rain, on average, per year. Fort Collins, Colorado gets 15.6 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Alpharetta averages 1.6 inches of snow per year. Fort Collins averages 48.1 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Alpharetta, Georgia
Summer High: the July high is around 87.9 degrees
Winter Low: the January low is 30
Rain: averages 53.4 inches of rain a year
Snow: averages 1.6 inches of snow a year

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

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Alpharetta is 7.6 (10=best), which means it is one of the most pleasant places in Georgia.

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

Today's Weather - Fort Collins, CO

58°F

Today's Weather - Alpharetta, GA

74°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Fort Collins / Alpharetta

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.

July is the hottest month for Alpharetta with an average high temperature of 87.9°, which ranks it as cooler than most places in Georgia. In Alpharetta, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Alpharetta are May, September and October.

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.

January has the coldest nighttime temperatures for Alpharetta with an average of 30.0°. This is colder than most places in Georgia.

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 Alpharetta, there are 27.3 days annually when the high temperature is over 90°, which is cooler than most places in Georgia.

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 Alpharetta, there are 64.5 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Georgia.

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.

In Alpharetta, there are 0.1 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in Georgia.

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 wettest month in Alpharetta with 5.1 inches of rain, and the driest month is April with 3.8 inches. The wettest season is Spring with 27% of yearly precipitation and 23% occurs in Winter, which is the driest season. The annual rainfall of 53.4 inches in Alpharetta means that it is wetter than most places in Georgia.

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.

January is the rainiest month in Alpharetta with 10.5 days of rain, and October is the driest month with only 6.8 rainy days. There are 108.0 rainy days annually in Alpharetta, which is rainier than most places in Georgia. The rainiest season is Spring when it rains 28% of the time and the driest is Winter with only a 21% chance of a rainy day.

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

An annual snowfall of 1.6 inches in Alpharetta means that it is snowier than most places in Georgia.

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

January is the snowiest month in Alpharetta with 0.7 inches of snow, and 1 month of the year have significant snowfall.