2025 Compare Climate & Weather:
Johnstown, CO vs Superior, CO

Highlights

On average, there are 242 sunny days per year in Superior. Johnstown averages 239 sunny days per year. The US average is 205 sunny days.

Superior, Colorado gets 17.7 inches of rain, on average, per year. Johnstown, Colorado gets 14.9 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Superior averages 69.9 inches of snow per year. Johnstown averages 38 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Superior, Colorado
Summer High: the July high is around 89.2 degrees
Winter Low: the January low is 19.2
Rain: averages 17.7 inches of rain a year
Snow: averages 69.9 inches of snow a year

Johnstown, Colorado
Summer High: the July high is around 90.4 degrees
Winter Low: the January low is 13.5
Rain: averages 14.9 inches of rain a year
Snow: averages 38 inches of snow a year

BestPlaces Comfort Index

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

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

Today's Weather - Johnstown, CO

60°F

Today's Weather - Superior, CO

55°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Johnstown / Superior

July is the hottest month for Johnstown with an average high temperature of 90.4°, which ranks it as warmer than most places in Colorado. In Johnstown, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Johnstown are September, May and June.

July is the hottest month for Superior with an average high temperature of 89.2°, which ranks it as warmer than most places in Colorado. In Superior, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Superior are September, June and May.

December has the coldest nighttime temperatures for Johnstown with an average of 13.2°. This is about average compared to other places in Colorado.

December has the coldest nighttime temperatures for Superior with an average of 18.5°. This is one of the warmest places in Colorado.

In Johnstown, there are 46.3 days annually when the high temperature is over 90°, which is hotter than most places in Colorado.

In Superior, there are 37.5 days annually when the high temperature is over 90°, which is hotter than most places in Colorado.

In Johnstown, there are 172.8 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Colorado.

In Superior, there are 148.9 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Colorado.

In Johnstown, there are 9.9 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Colorado.

In Superior, there are 5.1 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Colorado.

May is the wettest month in Johnstown with 2.3 inches of rain, and the driest month is February with 0.4 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 14.9 inches in Johnstown means that it is drier than most places in Colorado.


May is the wettest month in Superior with 2.5 inches of rain, and the driest month is January with 0.6 inches. The wettest season is Summer with 37% of yearly precipitation and 11% occurs in Spring, which is the driest season. The annual rainfall of 17.7 inches in Superior means that it is wetter than most places in Colorado.

May is the rainiest month in Johnstown with 10.5 days of rain, and January is the driest month with only 4.3 rainy days. There are 80.9 rainy days annually in Johnstown, which is about average compared to other places in Colorado. The rainiest season is Summer when it rains 31% of the time and the driest is Spring with only a 17% chance of a rainy day.

May is the rainiest month in Superior with 10.5 days of rain, and January is the driest month with only 4.7 rainy days. There are 87.5 rainy days annually in Superior, which is rainier than most places in Colorado. The rainiest season is Summer when it rains 30% of the time and the driest is Spring with only a 17% chance of a rainy day.

An annual snowfall of 38.0 inches in Johnstown means that it is less snowy than most places in Colorado.

An annual snowfall of 69.9 inches in Superior means that it is snowier than most places in Colorado.

March is the snowiest month in Johnstown with 7.7 inches of snow, and 7 months of the year have significant snowfall.

March is the snowiest month in Superior with 13.6 inches of snow, and 9 months of the year have significant snowfall.