2025 Compare Climate & Weather:
Johnstown, CO vs Bartlett, IL

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Highlights

On average, there are 192 sunny days per year in Bartlett. Johnstown averages 239 sunny days per year. The US average is 205 sunny days.

Bartlett, Illinois gets 37.6 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.

Bartlett averages 32.7 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

Bartlett, Illinois
Summer High: the July high is around 85.2 degrees
Winter Low: the January low is 13.1
Rain: averages 37.6 inches of rain a year
Snow: averages 32.7 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

Bartlett

The annual BestPlaces Comfort Index for Bartlett is 6.8 (10=best), which means it is less comfortable than most places in Illinois.

6.8 / 10

June, September and August are the most pleasant months in Bartlett, while January and December are the least comfortable months.

Johnstown

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

7.2 / 10

September, June and May are the most pleasant months in Johnstown, while December and January are the least comfortable months.

Average Monthly High / Low (°F)

Month	Johnstown, CO	Bartlett, IL
January	45° / 14°	31° / 13°
February	48° / 17°	36° / 17°
March	56° / 24°	47° / 26°
April	64° / 32°	60° / 36°
May	74° / 42°	71° / 46°
June	84° / 50°	82° / 57°
July	90° / 55°	85° / 61°
August	88° / 54°	83° / 60°
September	80° / 44°	76° / 51°
October	67° / 33°	63° / 40°
November	53° / 22°	49° / 29°
December	44° / 13°	35° / 17°

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

Month	Hot Days	Freezing Days	Rainy Days	Snowy Days
January	0 / 0	31 / 30	4 / 9	3 / 7
February	0 / 0	27 / 26	5 / 8	3 / 5
March	0 / 0	26 / 23	6 / 10	3 / 3
April	0 / 0	15 / 10	8 / 12	2 / 1
May	2 / 1	2 / 2	11 / 12	0 / 0
June	9 / 5	0 / 0	9 / 11	0 / 0
July	17 / 7	0 / 0	8 / 9	0 / 0
August	13 / 5	0 / 0	8 / 10	0 / 0
September	5 / 1	2 / 0	7 / 9	0 / 0
October	0 / 0	14 / 7	6 / 10	1 / 0
November	0 / 0	26 / 18	6 / 11	3 / 2
December	0 / 0	31 / 28	4 / 11	4 / 7

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 Bartlett with an average high temperature of 85.2°, which ranks it as about average compared to other places in Illinois. In Bartlett, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Bartlett are September, June and August.

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

January has the coldest nighttime temperatures for Bartlett with an average of 13.1°. This is colder than most places in Illinois.

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

In Bartlett, there are 18.4 days annually when the high temperature is over 90°, which is about average compared to other places in Illinois.

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 Bartlett, there are 143.3 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in Illinois.

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 Bartlett, there are 10.6 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Illinois.

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.

August is the wettest month in Bartlett with 4.7 inches of rain, and the driest month is February with 1.5 inches. The wettest season is Autumn with 34% of yearly precipitation and 14% occurs in Spring, which is the driest season. The annual rainfall of 37.6 inches in Bartlett means that it is drier than most places in Illinois.

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 Bartlett with 12.1 days of rain, and February is the driest month with only 7.7 rainy days. There are 120.7 rainy days annually in Bartlett, which is rainier than most places in Illinois. The rainiest season is Summer when it rains 28% of the time and the driest is Spring with only a 23% 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 32.7 inches in Bartlett means that it is snowier than most places in Illinois.

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

January is the snowiest month in Bartlett with 10.9 inches of snow, and 6 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 Johnstown 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

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Reviews for Bartlett 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

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2025 Compare Climate & Weather:
Johnstown, CO vs Bartlett, IL

Highlights

Weather Highlights

BestPlaces Comfort Index

Average Monthly High / Low (°F)

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

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

January has the coldest nighttime temperatures for Bartlett with an average of 13.1°. This is colder than most places in Illinois.

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

In Bartlett, there are 18.4 days annually when the high temperature is over 90°, which is about average compared to other places in Illinois.

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 Bartlett, there are 10.6 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Illinois.

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

An annual snowfall of 32.7 inches in Bartlett means that it is snowier than most places in Illinois.

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

January is the snowiest month in Bartlett with 10.9 inches of snow, and 6 months of the year have significant snowfall.

DID YOU KNOW?

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Reviews for Bartlett 2 Reviews

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2025 Compare Climate & Weather:Johnstown, CO vs Bartlett, IL

Highlights

Weather Highlights

BestPlaces Comfort Index

Average Monthly High / Low (°F)

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

December has the coldest nighttime temperatures for Johnstown with an average of 13.2°. This is about average compared to other places in Colorado.January has the coldest nighttime temperatures for Bartlett with an average of 13.1°. This is colder than most places in Illinois.

In Johnstown, there are 46.3 days annually when the high temperature is over 90°, which is hotter than most places in Colorado.In Bartlett, there are 18.4 days annually when the high temperature is over 90°, which is about average compared to other places in Illinois.

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 Bartlett, there are 10.6 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Illinois.

An annual snowfall of 38.0 inches in Johnstown means that it is less snowy than most places in Colorado.An annual snowfall of 32.7 inches in Bartlett means that it is snowier than most places in Illinois.

March is the snowiest month in Johnstown with 7.7 inches of snow, and 7 months of the year have significant snowfall.January is the snowiest month in Bartlett with 10.9 inches of snow, and 6 months of the year have significant snowfall.

DID YOU KNOW?

Reviews for Johnstown 2 Reviews

Reviews for Bartlett 2 Reviews

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Zips In Johnstown, Colorado

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2025 Compare Climate & Weather:
Johnstown, CO vs Bartlett, IL

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

January has the coldest nighttime temperatures for Bartlett with an average of 13.1°. This is colder than most places in Illinois.

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

In Bartlett, there are 18.4 days annually when the high temperature is over 90°, which is about average compared to other places in Illinois.

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 Bartlett, there are 10.6 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Illinois.

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

An annual snowfall of 32.7 inches in Bartlett means that it is snowier than most places in Illinois.

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

January is the snowiest month in Bartlett with 10.9 inches of snow, and 6 months of the year have significant snowfall.