2025 Compare Climate & Weather:
Rockford, IL vs Quincy, MA

Highlights

On average, there are 202 sunny days per year in Quincy. Rockford averages 188 sunny days per year. The US average is 205 sunny days.

Quincy, Massachusetts gets 48.6 inches of rain, on average, per year. Rockford, Illinois gets 37.1 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Quincy averages 45.4 inches of snow per year. Rockford averages 35.1 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Quincy, Massachusetts
Summer High: the July high is around 82.4 degrees
Winter Low: the January low is 20.2
Rain: averages 48.6 inches of rain a year
Snow: averages 45.4 inches of snow a year

Rockford, Illinois
Summer High: the July high is around 83.7 degrees
Winter Low: the January low is 12.7
Rain: averages 37.1 inches of rain a year
Snow: averages 35.1 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Quincy is 7.0 (10=best), which means it is more comfortable than most places in Massachusetts.

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

Today's Weather - Rockford, IL

69°F

Today's Weather - Quincy, MA

62°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Rockford / Quincy

July is the hottest month for Rockford with an average high temperature of 83.7°, which ranks it as cooler than most places in Illinois. In Rockford, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Rockford are June, September and August.

July is the hottest month for Quincy with an average high temperature of 82.4°, which ranks it as warmer than most places in Massachusetts. In Quincy, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Quincy are June, August and July.

January has the coldest nighttime temperatures for Rockford with an average of 12.7°. This is one of the coldest places in Illinois.

January has the coldest nighttime temperatures for Quincy with an average of 20.2°. This is warmer than most places in Massachusetts.

In Rockford, there are 12.1 days annually when the high temperature is over 90°, which is cooler than most places in Illinois.

In Quincy, there are 10.8 days annually when the high temperature is over 90°, which is hotter than most places in Massachusetts.

In Rockford, there are 138.3 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Illinois.

In Quincy, there are 110.0 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Massachusetts.

In Rockford, there are 12.9 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in Illinois.

In Quincy, there are 1.3 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Massachusetts.

June is the wettest month in Rockford with 4.9 inches of rain, and the driest month is January with 1.4 inches. The wettest season is Autumn with 37% of yearly precipitation and 13% occurs in Spring, which is the driest season. The annual rainfall of 37.1 inches in Rockford means that it is drier than most places in Illinois.


March is the wettest month in Quincy with 4.8 inches of rain, and the driest month is February with 3.6 inches. The wettest season is Summer with 26% of yearly precipitation and 24% occurs in Spring, which is the driest season. The annual rainfall of 48.6 inches in Quincy means that it is wetter than most places in Massachusetts.

May is the rainiest month in Rockford with 12.0 days of rain, and February is the driest month with only 8.0 rainy days. There are 116.0 rainy days annually in Rockford, which is rainier than most places in Illinois. The rainiest season is Summer when it rains 28% of the time and the driest is Winter with only a 23% chance of a rainy day.

May is the rainiest month in Quincy with 12.1 days of rain, and September is the driest month with only 8.9 rainy days. There are 128.3 rainy days annually in Quincy, which is rainier than most places in Massachusetts. The rainiest season is Summer when it rains 28% of the time and the driest is Autumn with only a 23% chance of a rainy day.

An annual snowfall of 35.1 inches in Rockford means that it is one of the snowiest places in Illinois.

An annual snowfall of 45.4 inches in Quincy means that it is snowier than most places in Massachusetts.

December is the snowiest month in Rockford with 11.4 inches of snow, and 6 months of the year have significant snowfall.

January is the snowiest month in Quincy with 13.2 inches of snow, and 6 months of the year have significant snowfall.