The remote server returned an error: (400) Bad Request.The remote server returned an error: (400) Bad Request. 2025 Compare Climate & Weather: Round Lake, IL vs Rochester Hills, MI

2025 Compare Climate & Weather:
Round Lake, IL vs Rochester Hills, MI

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Highlights

On average, there are 179 sunny days per year in Rochester Hills. Round Lake averages 192 sunny days per year. The US average is 205 sunny days.

Rochester Hills, Michigan gets 32 inches of rain, on average, per year. Round Lake, Illinois gets 36.7 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Rochester Hills averages 33.1 inches of snow per year. Round Lake averages 43.2 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Rochester Hills, Michigan
Summer High: the July high is around 82.3 degrees
Winter Low: the January low is 15.7
Rain: averages 32 inches of rain a year
Snow: averages 33.1 inches of snow a year

Round Lake, Illinois
Summer High: the July high is around 82.2 degrees
Winter Low: the January low is 13.9
Rain: averages 36.7 inches of rain a year
Snow: averages 43.2 inches of snow a year

BestPlaces Comfort Index
Rochester Hills

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

6.8 / 10
August, July and June are the most pleasant months in Rochester Hills, while January and February are the least comfortable months.

Round Lake

The annual BestPlaces Comfort Index for Round Lake is 6.7 (10=best), which means it is one of the least comfortable places in Illinois.

6.7 / 10
June, September and August are the most pleasant months in Round Lake, while January and December are the least comfortable months.

Average Monthly High / Low (°F)
MonthRound Lake, ILRochester Hills, MI
January29° / 14°30° / 16°
February33° / 17°33° / 17°
March44° / 27°43° / 25°
April57° / 37°57° / 36°
May68° / 47°68° / 47°
June78° / 58°78° / 57°
July82° / 63°82° / 61°
August81° / 61°80° / 60°
September73° / 53°73° / 52°
October61° / 42°59° / 40°
November47° / 31°47° / 31°
December33° / 18°34° / 21°
Hot, Freezing, Rainy, Snowy Days: Round Lake / Rochester Hills
MonthHot DaysFreezing DaysRainy DaysSnowy Days
January0 / 029 / 2910 / 128 / 8
February0 / 026 / 269 / 96 / 6
March0 / 023 / 2610 / 104 / 3
April0 / 08 / 1011 / 111 / 1
May0 / 01 / 112 / 110 / 0
June2 / 10 / 011 / 100 / 0
July4 / 30 / 010 / 90 / 0
August2 / 10 / 010 / 90 / 0
September0 / 00 / 09 / 100 / 0
October0 / 04 / 510 / 100 / 0
November0 / 016 / 1710 / 112 / 1
December0 / 028 / 2810 / 127 / 6
July is the hottest month for Round Lake with an average high temperature of 82.2°, which ranks it as one of the coolest places in Illinois. In Round Lake, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Round Lake are June, August and July.

July is the hottest month for Rochester Hills with an average high temperature of 82.3°, which ranks it as warmer than most places in Michigan. In Rochester Hills, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Rochester Hills are June, August and July.
January has the coldest nighttime temperatures for Round Lake with an average of 13.9°. This is colder than most places in Illinois.

January has the coldest nighttime temperatures for Rochester Hills with an average of 15.7°. This is about average compared to other places in Michigan.

In Round Lake, there are 8.0 days annually when the high temperature is over 90°, which is one of the coolest places in Illinois.

In Rochester Hills, there are 5.5 days annually when the high temperature is over 90°, which is about average compared to other places in Michigan.

In Round Lake, there are 134.2 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Illinois.

In Rochester Hills, there are 141.6 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Michigan.

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

In Rochester Hills, there are 5.5 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Michigan.

June is the wettest month in Round Lake with 4.2 inches of rain, and the driest month is January with 1.7 inches. The wettest season is Autumn with 33% of yearly precipitation and 15% occurs in Spring, which is the driest season. The annual rainfall of 36.7 inches in Round Lake means that it is drier than most places in Illinois.


June is the wettest month in Rochester Hills with 3.4 inches of rain, and the driest month is January with 1.7 inches. The wettest season is Autumn with 29% of yearly precipitation and 17% occurs in Spring, which is the driest season. The annual rainfall of 32.0 inches in Rochester Hills means that it is drier than most places in Michigan.

May is the rainiest month in Round Lake with 12.3 days of rain, and September is the driest month with only 8.7 rainy days. There are 121.2 rainy days annually in Round Lake, which is one of the rainiest places in Illinois. The rainiest season is Summer when it rains 28% of the time and the driest is Winter with only a 24% chance of a rainy day.

December is the rainiest month in Rochester Hills with 11.8 days of rain, and February is the driest month with only 9.2 rainy days. There are 123.4 rainy days annually in Rochester Hills, which is less rainy than most places in Michigan. The rainiest season is Spring when it rains 26% of the time and the driest is Autumn with only a 23% chance of a rainy day.

An annual snowfall of 43.2 inches in Round Lake means that it is one of the snowiest places in Illinois.

An annual snowfall of 33.1 inches in Rochester Hills means that it is one of the least snowy places in Michigan.
January is the snowiest month in Round Lake with 12.9 inches of snow, and 6 months of the year have significant snowfall.

January is the snowiest month in Rochester Hills with 9.8 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 Round Lake    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 Round Lake

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Reviews for Rochester Hills    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 Rochester Hills

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Zips In Round Lake, Illinois
No Zip Codes Here.
Zips In ROCHESTER HILLS, MICHIGAN
48307, 48309, 48306
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