2025 Compare Climate & Weather:
Somerville, MA vs Rockford, MI

Highlights

On average, there are 160 sunny days per year in Rockford. Somerville averages 197 sunny days per year. The US average is 205 sunny days.

Rockford, Michigan gets 37.1 inches of rain, on average, per year. Somerville, Massachusetts gets 48 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Rockford averages 66.2 inches of snow per year. Somerville averages 51.4 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Rockford, Michigan
Summer High: the July high is around 82.6 degrees
Winter Low: the January low is 15.4
Rain: averages 37.1 inches of rain a year
Snow: averages 66.2 inches of snow a year

Somerville, Massachusetts
Summer High: the July high is around 82.4 degrees
Winter Low: the January low is 19.1
Rain: averages 48 inches of rain a year
Snow: averages 51.4 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Rockford is 6.5 (10=best), which means it is less comfortable than most places in Michigan.

The annual BestPlaces Comfort Index for Somerville is 6.9 (10=best), which means it is about average compared to other places in Massachusetts.

Today's Weather - Somerville, MA

51°F

Today's Weather - Rockford, MI

51°F

Average Monthly High / Low (°F)

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

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

July is the hottest month for Rockford with an average high temperature of 82.6°, which ranks it as warmer than most places in Michigan. In Rockford, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Rockford are June, August and July.

January has the coldest nighttime temperatures for Somerville with an average of 19.1°. This is about average compared to other places in Massachusetts.

January has the coldest nighttime temperatures for Rockford with an average of 15.4°. This is about average compared to other places in Michigan.

In Somerville, there are 10.6 days annually when the high temperature is over 90°, which is hotter than most places in Massachusetts.

In Rockford, there are 8.2 days annually when the high temperature is over 90°, which is hotter than most places in Michigan.

In Somerville, there are 115.8 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Massachusetts.

In Rockford, there are 144.9 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Michigan.

In Somerville, there are 1.9 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Massachusetts.

In Rockford, there are 7.4 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Michigan.

March is the wettest month in Somerville with 4.7 inches of rain, and the driest month is February with 3.5 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 48.0 inches in Somerville means that it is about average compared to other places in Massachusetts.


May is the wettest month in Rockford with 4.0 inches of rain, and the driest month is February with 1.7 inches. The wettest season is Winter with 29% of yearly precipitation and 17% occurs in Spring, which is the driest season. The annual rainfall of 37.1 inches in Rockford means that it is wetter than most places in Michigan.

May is the rainiest month in Somerville with 12.8 days of rain, and September is the driest month with only 9.2 rainy days. There are 133.6 rainy days annually in Somerville, which is one of the rainiest places in Massachusetts. 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.

December is the rainiest month in Rockford with 14.8 days of rain, and July is the driest month with only 9.3 rainy days. There are 139.9 rainy days annually in Rockford, which is rainier than most places in Michigan. The rainiest season is Spring when it rains 29% of the time and the driest is Autumn with only a 21% chance of a rainy day.

An annual snowfall of 51.4 inches in Somerville means that it is snowier than most places in Massachusetts.

An annual snowfall of 66.2 inches in Rockford means that it is snowier than most places in Michigan.

January is the snowiest month in Somerville with 15.1 inches of snow, and 6 months of the year have significant snowfall.

January is the snowiest month in Rockford with 18.7 inches of snow, and 6 months of the year have significant snowfall.