2025 Compare Climate & Weather:
La Grange, IL vs Dover, NH

Highlights

On average, there are 198 sunny days per year in Dover. La Grange averages 191 sunny days per year. The US average is 205 sunny days.

Dover, New Hampshire gets 47.1 inches of rain, on average, per year. La Grange, Illinois gets 39.1 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Dover averages 52.5 inches of snow per year. La Grange averages 31.6 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Dover, New Hampshire
Summer High: the July high is around 81.2 degrees
Winter Low: the January low is 13.4
Rain: averages 47.1 inches of rain a year
Snow: averages 52.5 inches of snow a year

La Grange, Illinois
Summer High: the July high is around 83.9 degrees
Winter Low: the January low is 15.9
Rain: averages 39.1 inches of rain a year
Snow: averages 31.6 inches of snow a year

BestPlaces Comfort Index

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

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

Today's Weather - La Grange, IL

46°F

Today's Weather - Dover, NH

52°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: La Grange / Dover

July is the hottest month for La Grange with an average high temperature of 83.9°, which ranks it as cooler than most places in Illinois. In La Grange, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for La Grange are June, September and August.

July is the hottest month for Dover with an average high temperature of 81.2°, which ranks it as about average compared to other places in New Hampshire. In Dover, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Dover are June, August and July.

January has the coldest nighttime temperatures for La Grange with an average of 15.9°. This is about average compared to other places in Illinois.

January has the coldest nighttime temperatures for Dover with an average of 13.4°. This is warmer than most places in New Hampshire.

In La Grange, there are 9.8 days annually when the high temperature is over 90°, which is one of the coolest places in Illinois.

In Dover, there are 6.7 days annually when the high temperature is over 90°, which is about average compared to other places in New Hampshire.

In La Grange, there are 130.4 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Illinois.

In Dover, there are 152.0 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in New Hampshire.

In La Grange, there are 5.3 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Illinois.

In Dover, there are 7.0 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in New Hampshire.

August is the wettest month in La Grange 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 La Grange means that it is about average compared to other places in Illinois.


March is the wettest month in Dover with 4.5 inches of rain, and the driest month is January with 3.1 inches. The wettest season is Summer with 27% of yearly precipitation and 21% occurs in Spring, which is the driest season. The annual rainfall of 47.1 inches in Dover means that it is wetter than most places in New Hampshire.

May is the rainiest month in La Grange with 11.8 days of rain, and February is the driest month with only 8.2 rainy days. There are 120.5 rainy days annually in La Grange, which is rainier than most places in Illinois. The rainiest season is Summer when it rains 27% of the time and the driest is Winter with only a 23% chance of a rainy day.

May is the rainiest month in Dover with 11.4 days of rain, and February is the driest month with only 7.7 rainy days. There are 118.0 rainy days annually in Dover, which is one of the least rainy places in New Hampshire. 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 31.6 inches in La Grange means that it is snowier than most places in Illinois.

An annual snowfall of 52.5 inches in Dover means that it is one of the least snowy places in New Hampshire.

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

January is the snowiest month in Dover with 16.5 inches of snow, and 6 months of the year have significant snowfall.