2025 Compare Climate & Weather:
Merrill, MI vs Merrillville, IN

Highlights

On average, there are 188 sunny days per year in Merrillville. Merrill averages 171 sunny days per year. The US average is 205 sunny days.

Merrillville, Indiana gets 38.4 inches of rain, on average, per year. Merrill, Michigan gets 32.2 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Merrillville averages 32.5 inches of snow per year. Merrill averages 40.9 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Merrillville, Indiana
Summer High: the July high is around 82.8 degrees
Winter Low: the January low is 16.3
Rain: averages 38.4 inches of rain a year
Snow: averages 32.5 inches of snow a year

Merrill, Michigan
Summer High: the July high is around 81.9 degrees
Winter Low: the January low is 15.2
Rain: averages 32.2 inches of rain a year
Snow: averages 40.9 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Merrillville is 6.9 (10=best), which means it is less comfortable than most places in Indiana.

The annual BestPlaces Comfort Index for Merrill is 6.7 (10=best), which means it is more comfortable than most places in Michigan.

Today's Weather - Merrill, MI

54°F

Today's Weather - Merrillville, IN

56°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Merrill / Merrillville

July is the hottest month for Merrill with an average high temperature of 81.9°, which ranks it as about average compared to other places in Michigan. In Merrill, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Merrill are June, August and July.

July is the hottest month for Merrillville with an average high temperature of 82.8°, which ranks it as one of the coolest places in Indiana. In Merrillville, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Merrillville are June, September and August.

January has the coldest nighttime temperatures for Merrill with an average of 15.2°. This is about average compared to other places in Michigan.

January has the coldest nighttime temperatures for Merrillville with an average of 16.3°. This is colder than most places in Indiana.

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

In Merrillville, there are 11.4 days annually when the high temperature is over 90°, which is cooler than most places in Indiana.

In Merrill, there are 146.5 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Michigan.

In Merrillville, there are 125.7 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Indiana.

In Merrill, there are 6.8 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Michigan.

In Merrillville, there are 7.6 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in Indiana.

September is the wettest month in Merrill with 3.7 inches of rain, and the driest month is February with 1.6 inches. The wettest season is Winter with 29% of yearly precipitation and 16% occurs in Spring, which is the driest season. The annual rainfall of 32.2 inches in Merrill means that it is drier than most places in Michigan.


August is the wettest month in Merrillville with 4.5 inches of rain, and the driest month is February with 1.8 inches. The wettest season is Autumn with 32% of yearly precipitation and 17% occurs in Spring, which is the driest season. The annual rainfall of 38.4 inches in Merrillville means that it is one of the driest places in Indiana.

December is the rainiest month in Merrill with 11.7 days of rain, and February is the driest month with only 8.8 rainy days. There are 127.9 rainy days annually in Merrill, which is about average compared to other places in Michigan. The rainiest season is Winter when it rains 26% of the time and the driest is Autumn with only a 24% chance of a rainy day.

May is the rainiest month in Merrillville with 11.6 days of rain, and February is the driest month with only 8.5 rainy days. There are 121.1 rainy days annually in Merrillville, which is rainier than most places in Indiana. The rainiest season is Summer when it rains 27% of the time and the driest is Winter with only a 24% chance of a rainy day.

An annual snowfall of 40.9 inches in Merrill means that it is less snowy than most places in Michigan.

An annual snowfall of 32.5 inches in Merrillville means that it is snowier than most places in Indiana.

January is the snowiest month in Merrill with 11.6 inches of snow, and 6 months of the year have significant snowfall.

January is the snowiest month in Merrillville with 10.8 inches of snow, and 6 months of the year have significant snowfall.