2025 Compare Climate & Weather:
Summit, IL vs South Beloit, IL

Change Cities

Highlights

On average, there are 190 sunny days per year in South Beloit. Summit averages 189 sunny days per year. The US average is 205 sunny days.

South Beloit, Illinois gets 36.7 inches of rain, on average, per year. Summit, Illinois gets 39.1 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

South Beloit averages 34.1 inches of snow per year. Summit averages 31.9 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

South Beloit, Illinois
Summer High: the July high is around 83 degrees
Winter Low: the January low is 11.4
Rain: averages 36.7 inches of rain a year
Snow: averages 34.1 inches of snow a year

Summit, Illinois
Summer High: the July high is around 84.1 degrees
Winter Low: the January low is 19.6
Rain: averages 39.1 inches of rain a year
Snow: averages 31.9 inches of snow a year

BestPlaces Comfort Index

South Beloit

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

6.8 / 10

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

Summit

The annual BestPlaces Comfort Index for Summit is 7.0 (10=best), which means it is about average compared to other places in Illinois.

7 / 10

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

Average Monthly High / Low (°F)

Month	Summit, IL	South Beloit, IL
January	33° / 20°	28° / 11°
February	37° / 23°	33° / 15°
March	47° / 31°	44° / 26°
April	59° / 42°	58° / 37°
May	70° / 52°	70° / 48°
June	79° / 62°	79° / 58°
July	84° / 68°	83° / 62°
August	82° / 67°	81° / 60°
September	76° / 59°	74° / 51°
October	63° / 47°	61° / 39°
November	50° / 37°	46° / 29°
December	36° / 24°	32° / 16°

Hot, Freezing, Rainy, Snowy Days: Summit / South Beloit

Month	Hot Days	Freezing Days	Rainy Days	Snowy Days
January	0 / 0	27 / 30	10 / 9	7 / 6
February	0 / 0	22 / 26	8 / 8	5 / 5
March	0 / 0	16 / 24	11 / 9	3 / 3
April	0 / 0	3 / 9	11 / 11	0 / 0
May	1 / 0	0 / 1	12 / 12	0 / 0
June	3 / 2	0 / 0	11 / 11	0 / 0
July	6 / 4	0 / 0	10 / 10	0 / 0
August	4 / 2	0 / 0	10 / 9	0 / 0
September	1 / 0	0 / 0	9 / 9	0 / 0
October	0 / 0	1 / 7	10 / 10	0 / 0
November	0 / 0	9 / 19	11 / 9	1 / 1
December	0 / 0	23 / 28	11 / 10	6 / 6

July is the hottest month for Summit with an average high temperature of 84.1°, which ranks it as cooler than most places in Illinois. In Summit, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Summit are June, September and August.

July is the hottest month for South Beloit with an average high temperature of 83.0°, which ranks it as one of the coolest places in Illinois. In South Beloit, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for South Beloit are June, August and September.

January has the coldest nighttime temperatures for Summit with an average of 19.6°. This is warmer than most places in Illinois.

January has the coldest nighttime temperatures for South Beloit with an average of 11.4°. This is one of the coldest places in Illinois.

In Summit, there are 13.8 days annually when the high temperature is over 90°, which is cooler than most places in Illinois.

In South Beloit, there are 9.1 days annually when the high temperature is over 90°, which is one of the coolest places in Illinois.

In Summit, there are 101.5 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Illinois.

In South Beloit, there are 143.6 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in Illinois.

In Summit, there are 3.7 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Illinois.

In South Beloit, there are 14.7 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in Illinois.

August is the wettest month in Summit with 4.3 inches of rain, and the driest month is February with 1.9 inches. The wettest season is Autumn with 31% of yearly precipitation and 17% occurs in Spring, which is the driest season. The annual rainfall of 39.1 inches in Summit means that it is about average compared to other places in Illinois.

June is the wettest month in South Beloit with 4.8 inches of rain, and the driest month is January with 1.4 inches. The wettest season is Autumn with 36% of yearly precipitation and 14% occurs in Spring, which is the driest season. The annual rainfall of 36.7 inches in South Beloit means that it is drier than most places in Illinois.

May is the rainiest month in Summit with 11.7 days of rain, and February is the driest month with only 8.3 rainy days. There are 124.3 rainy days annually in Summit, which is one of the rainiest places in Illinois. The rainiest season is Summer when it rains 27% of the time and the driest is Spring with only a 24% chance of a rainy day.

May is the rainiest month in South Beloit with 11.6 days of rain, and February is the driest month with only 7.5 rainy days. There are 115.6 rainy days annually in South Beloit, which is rainier than most places in Illinois. 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 31.9 inches in Summit means that it is snowier than most places in Illinois.

An annual snowfall of 34.1 inches in South Beloit means that it is snowier than most places in Illinois.

January is the snowiest month in Summit with 10.5 inches of snow, and 6 months of the year have significant snowfall.

January is the snowiest month in South Beloit with 10.5 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 Summit 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 Summit

See all reviews

Reviews for South Beloit 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 South Beloit

See all reviews

Compare Cost of Living

Compare Summit Cost of Living vs South Beloit Cost of Living: Taxes, Childcare, Groceries, Health...

Compare now

Zips In Summit, Illinois

No Zip Codes Here.

Premium Subscription

Includes Cost of Living compares for child care, utilities, transportation, health, taxes, housing for home owners vs renters, weather, insurance premiums and so much more.

Upgrade now

Compare City	Compared To This City
Palm Beach, Florida	Sarasota, Florida	Compare
Santa Barbara, California	Ojai, California	Compare
Gilford, New Hampshire	Moorefield, West Virginia	Compare
Norfolk, Virginia	Williamsburg, Virginia	Compare
Gilford, New Hampshire	Moorefield, West Virginia	Compare
Buffalo, New York	Amsterdam, New York	Compare
London, Kentucky	Amsterdam, New York	Compare
Santa Fe, New Mexico	Fort Collins, Colorado	Compare
Little Rock, Arkansas	Orlando, Florida	Compare
Rutledge, Tennessee	Shelbyville, Tennessee	Compare

2025 Compare Climate & Weather:
Summit, IL vs South Beloit, IL

Highlights

Weather Highlights

BestPlaces Comfort Index

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Summit / South Beloit

January has the coldest nighttime temperatures for Summit with an average of 19.6°. This is warmer than most places in Illinois.

January has the coldest nighttime temperatures for South Beloit with an average of 11.4°. This is one of the coldest places in Illinois.

In Summit, there are 13.8 days annually when the high temperature is over 90°, which is cooler than most places in Illinois.

In South Beloit, there are 9.1 days annually when the high temperature is over 90°, which is one of the coolest places in Illinois.

In Summit, there are 101.5 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Illinois.

In South Beloit, there are 143.6 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in Illinois.

In Summit, there are 3.7 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Illinois.

In South Beloit, there are 14.7 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in Illinois.

An annual snowfall of 31.9 inches in Summit means that it is snowier than most places in Illinois.

An annual snowfall of 34.1 inches in South Beloit means that it is snowier than most places in Illinois.

January is the snowiest month in Summit with 10.5 inches of snow, and 6 months of the year have significant snowfall.

January is the snowiest month in South Beloit with 10.5 inches of snow, and 6 months of the year have significant snowfall.

DID YOU KNOW?

Reviews for Summit 2 Reviews

Reviews for South Beloit 2 Reviews

Most Recent Searches On Compare Climate & Weather

Compare Cost of Living

Zips In Summit, Illinois

Zips In SOUTH BELOIT, ILLINOIS

Learn More About SUMMIT, ILLINOIS

Learn More About South Beloit, Illinois

Premium Subscription

BestPlaces Tools

About BestPlaces

Follow Us

2025 Compare Climate & Weather:Summit, IL vs South Beloit, IL

Highlights

Weather Highlights

BestPlaces Comfort Index

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Summit / South Beloit

January has the coldest nighttime temperatures for Summit with an average of 19.6°. This is warmer than most places in Illinois.January has the coldest nighttime temperatures for South Beloit with an average of 11.4°. This is one of the coldest places in Illinois.

In Summit, there are 13.8 days annually when the high temperature is over 90°, which is cooler than most places in Illinois.In South Beloit, there are 9.1 days annually when the high temperature is over 90°, which is one of the coolest places in Illinois.

In Summit, there are 101.5 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Illinois.In South Beloit, there are 143.6 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in Illinois.

In Summit, there are 3.7 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Illinois.In South Beloit, there are 14.7 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in Illinois.

An annual snowfall of 31.9 inches in Summit means that it is snowier than most places in Illinois.An annual snowfall of 34.1 inches in South Beloit means that it is snowier than most places in Illinois.

January is the snowiest month in Summit with 10.5 inches of snow, and 6 months of the year have significant snowfall.January is the snowiest month in South Beloit with 10.5 inches of snow, and 6 months of the year have significant snowfall.

DID YOU KNOW?

Reviews for Summit 2 Reviews

Reviews for South Beloit 2 Reviews

Most Recent Searches On Compare Climate & Weather

Compare Cost of Living

Zips In Summit, Illinois

Zips In SOUTH BELOIT, ILLINOIS

Learn More About SUMMIT, ILLINOIS

Learn More About South Beloit, Illinois

Premium Subscription

BestPlaces Tools

About BestPlaces

Follow Us

2025 Compare Climate & Weather:
Summit, IL vs South Beloit, IL

January has the coldest nighttime temperatures for Summit with an average of 19.6°. This is warmer than most places in Illinois.

January has the coldest nighttime temperatures for South Beloit with an average of 11.4°. This is one of the coldest places in Illinois.

In Summit, there are 13.8 days annually when the high temperature is over 90°, which is cooler than most places in Illinois.

In South Beloit, there are 9.1 days annually when the high temperature is over 90°, which is one of the coolest places in Illinois.

In Summit, there are 101.5 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Illinois.

In South Beloit, there are 143.6 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in Illinois.

In Summit, there are 3.7 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Illinois.

In South Beloit, there are 14.7 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in Illinois.

An annual snowfall of 31.9 inches in Summit means that it is snowier than most places in Illinois.

An annual snowfall of 34.1 inches in South Beloit means that it is snowier than most places in Illinois.

January is the snowiest month in Summit with 10.5 inches of snow, and 6 months of the year have significant snowfall.

January is the snowiest month in South Beloit with 10.5 inches of snow, and 6 months of the year have significant snowfall.