2025 Compare Climate & Weather:
Berthoud, CO vs Janesville, WI

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Highlights

On average, there are 185 sunny days per year in Janesville. Berthoud averages 240 sunny days per year. The US average is 205 sunny days.

Janesville, Wisconsin gets 35.5 inches of rain, on average, per year. Berthoud, Colorado gets 15.5 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Janesville averages 34.2 inches of snow per year. Berthoud averages 38.5 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Janesville, Wisconsin
Summer High: the July high is around 82.9 degrees
Winter Low: the January low is 11.2
Rain: averages 35.5 inches of rain a year
Snow: averages 34.2 inches of snow a year

Berthoud, Colorado
Summer High: the July high is around 88.5 degrees
Winter Low: the January low is 13.3
Rain: averages 15.5 inches of rain a year
Snow: averages 38.5 inches of snow a year

BestPlaces Comfort Index

Janesville

The annual BestPlaces Comfort Index for Janesville is 6.8 (10=best), which means it is one of the most pleasant places in Wisconsin.

6.8 / 10

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

Berthoud

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

7.2 / 10

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

Average Monthly High / Low (°F)

Month	Berthoud, CO	Janesville, WI
January	44° / 13°	28° / 11°
February	46° / 16°	32° / 15°
March	55° / 24°	44° / 26°
April	62° / 31°	58° / 37°
May	72° / 41°	69° / 48°
June	82° / 49°	79° / 58°
July	89° / 55°	83° / 62°
August	86° / 53°	81° / 60°
September	78° / 44°	74° / 51°
October	65° / 33°	61° / 39°
November	52° / 22°	46° / 29°
December	44° / 13°	32° / 16°

Hot, Freezing, Rainy, Snowy Days: Berthoud / Janesville

Month	Hot Days	Freezing Days	Rainy Days	Snowy Days
January	0 / 0	30 / 30	4 / 9	3 / 6
February	0 / 0	27 / 26	5 / 8	3 / 4
March	0 / 0	26 / 24	6 / 9	3 / 2
April	0 / 0	16 / 9	8 / 11	2 / 0
May	1 / 0	3 / 1	10 / 12	0 / 0
June	6 / 2	0 / 0	9 / 11	0 / 0
July	14 / 4	0 / 0	8 / 10	0 / 0
August	9 / 2	0 / 0	9 / 10	0 / 0
September	3 / 0	2 / 0	7 / 9	0 / 0
October	0 / 0	14 / 7	6 / 10	1 / 0
November	0 / 0	26 / 19	5 / 9	3 / 1
December	0 / 0	30 / 28	4 / 10	3 / 5

July is the hottest month for Berthoud with an average high temperature of 88.5°, which ranks it as about average compared to other places in Colorado. In Berthoud, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Berthoud are September, June and May.

July is the hottest month for Janesville with an average high temperature of 82.9°, which ranks it as warmer than most places in Wisconsin. In Janesville, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Janesville are June, August and September.

December has the coldest nighttime temperatures for Berthoud with an average of 13.1°. This is colder than most places in Colorado.

January has the coldest nighttime temperatures for Janesville with an average of 11.2°. This is warmer than most places in Wisconsin.

In Berthoud, there are 33.2 days annually when the high temperature is over 90°, which is hotter than most places in Colorado.

In Janesville, there are 8.7 days annually when the high temperature is over 90°, which is hotter than most places in Wisconsin.

In Berthoud, there are 174.5 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Colorado.

In Janesville, there are 144.5 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Wisconsin.

In Berthoud, there are 10.2 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Colorado.

In Janesville, there are 15.1 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Wisconsin.

May is the wettest month in Berthoud with 2.5 inches of rain, and the driest month is January with 0.5 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 15.5 inches in Berthoud means that it is drier than most places in Colorado.

August is the wettest month in Janesville with 4.4 inches of rain, and the driest month is January with 1.3 inches. The wettest season is Autumn with 35% of yearly precipitation and 14% occurs in Spring, which is the driest season. The annual rainfall of 35.5 inches in Janesville means that it is wetter than most places in Wisconsin.

May is the rainiest month in Berthoud with 10.4 days of rain, and January is the driest month with only 4.2 rainy days. There are 80.8 rainy days annually in Berthoud, which is about average compared to other 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.

May is the rainiest month in Janesville with 11.7 days of rain, and February is the driest month with only 7.5 rainy days. There are 116.3 rainy days annually in Janesville, which is rainier than most places in Wisconsin. The rainiest season is Summer when it rains 27% of the time and the driest is Spring with only a 23% chance of a rainy day.

An annual snowfall of 38.5 inches in Berthoud means that it is less snowy than most places in Colorado.

An annual snowfall of 34.2 inches in Janesville means that it is one of the least snowy places in Wisconsin.

March is the snowiest month in Berthoud with 8.2 inches of snow, and 7 months of the year have significant snowfall.

January is the snowiest month in Janesville with 10.2 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 Berthoud 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 Janesville 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

Start Your Review of Janesville

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2025 Compare Climate & Weather:
Berthoud, CO vs Janesville, WI

Highlights

Weather Highlights

BestPlaces Comfort Index

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Berthoud / Janesville

December has the coldest nighttime temperatures for Berthoud with an average of 13.1°. This is colder than most places in Colorado.

January has the coldest nighttime temperatures for Janesville with an average of 11.2°. This is warmer than most places in Wisconsin.

In Berthoud, there are 33.2 days annually when the high temperature is over 90°, which is hotter than most places in Colorado.

In Janesville, there are 8.7 days annually when the high temperature is over 90°, which is hotter than most places in Wisconsin.

In Berthoud, there are 10.2 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Colorado.

In Janesville, there are 15.1 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Wisconsin.

An annual snowfall of 38.5 inches in Berthoud means that it is less snowy than most places in Colorado.

An annual snowfall of 34.2 inches in Janesville means that it is one of the least snowy places in Wisconsin.

March is the snowiest month in Berthoud with 8.2 inches of snow, and 7 months of the year have significant snowfall.

January is the snowiest month in Janesville with 10.2 inches of snow, and 6 months of the year have significant snowfall.

DID YOU KNOW?

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Reviews for Janesville 2 Reviews

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2025 Compare Climate & Weather:Berthoud, CO vs Janesville, WI

Highlights

Weather Highlights

BestPlaces Comfort Index

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Berthoud / Janesville

December has the coldest nighttime temperatures for Berthoud with an average of 13.1°. This is colder than most places in Colorado.January has the coldest nighttime temperatures for Janesville with an average of 11.2°. This is warmer than most places in Wisconsin.

In Berthoud, there are 33.2 days annually when the high temperature is over 90°, which is hotter than most places in Colorado.In Janesville, there are 8.7 days annually when the high temperature is over 90°, which is hotter than most places in Wisconsin.

In Berthoud, there are 10.2 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Colorado.In Janesville, there are 15.1 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Wisconsin.

An annual snowfall of 38.5 inches in Berthoud means that it is less snowy than most places in Colorado.An annual snowfall of 34.2 inches in Janesville means that it is one of the least snowy places in Wisconsin.

March is the snowiest month in Berthoud with 8.2 inches of snow, and 7 months of the year have significant snowfall.January is the snowiest month in Janesville with 10.2 inches of snow, and 6 months of the year have significant snowfall.

DID YOU KNOW?

Reviews for Berthoud 2 Reviews

Reviews for Janesville 2 Reviews

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Zips In Berthoud, Colorado

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2025 Compare Climate & Weather:
Berthoud, CO vs Janesville, WI

December has the coldest nighttime temperatures for Berthoud with an average of 13.1°. This is colder than most places in Colorado.

January has the coldest nighttime temperatures for Janesville with an average of 11.2°. This is warmer than most places in Wisconsin.

In Berthoud, there are 33.2 days annually when the high temperature is over 90°, which is hotter than most places in Colorado.

In Janesville, there are 8.7 days annually when the high temperature is over 90°, which is hotter than most places in Wisconsin.

In Berthoud, there are 10.2 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Colorado.

In Janesville, there are 15.1 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Wisconsin.

An annual snowfall of 38.5 inches in Berthoud means that it is less snowy than most places in Colorado.

An annual snowfall of 34.2 inches in Janesville means that it is one of the least snowy places in Wisconsin.

March is the snowiest month in Berthoud with 8.2 inches of snow, and 7 months of the year have significant snowfall.

January is the snowiest month in Janesville with 10.2 inches of snow, and 6 months of the year have significant snowfall.