2025 Compare Climate & Weather:
Frederick, MD vs Mount Vernon, IN

Highlights

On average, there are 204 sunny days per year in Mount Vernon. Frederick averages 200 sunny days per year. The US average is 205 sunny days.

Mount Vernon, Indiana gets 46.4 inches of rain, on average, per year. Frederick, Maryland gets 42.5 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Mount Vernon averages 9.1 inches of snow per year. Frederick averages 23.1 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Mount Vernon, Indiana
Summer High: the July high is around 89.4 degrees
Winter Low: the January low is 26.2
Rain: averages 46.4 inches of rain a year
Snow: averages 9.1 inches of snow a year

Frederick, Maryland
Summer High: the July high is around 87.7 degrees
Winter Low: the January low is 23.3
Rain: averages 42.5 inches of rain a year
Snow: averages 23.1 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Mount Vernon is 7.2 (10=best), which means it is one of the most pleasant places in Indiana.

The annual BestPlaces Comfort Index for Frederick is 7.3 (10=best), which means it is more comfortable than most places in Maryland.

Today's Weather - Frederick, MD

66°F

Today's Weather - Mount Vernon, IN

57°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Frederick / Mount Vernon

July is the hottest month for Frederick with an average high temperature of 87.7°, which ranks it as warmer than most places in Maryland. In Frederick, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Frederick are September, May and June.

July is the hottest month for Mount Vernon with an average high temperature of 89.4°, which ranks it as one of the hottest places in Indiana. In Mount Vernon, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Mount Vernon are May, September and October.

January has the coldest nighttime temperatures for Frederick with an average of 23.3°. This is colder than most places in Maryland.

January has the coldest nighttime temperatures for Mount Vernon with an average of 26.2°. This is one of the warmest places in Indiana.

In Frederick, there are 26.3 days annually when the high temperature is over 90°, which is hotter than most places in Maryland.

In Mount Vernon, there are 44.8 days annually when the high temperature is over 90°, which is one of the hottest places in Indiana.

In Frederick, there are 100.8 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Maryland.

In Mount Vernon, there are 72.7 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Indiana.

In Frederick, there are 0.8 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Maryland.

In Mount Vernon, there are 0.7 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in Indiana.

May is the wettest month in Frederick with 4.2 inches of rain, and the driest month is February with 2.8 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 42.5 inches in Frederick means that it is drier than most places in Maryland.


May is the wettest month in Mount Vernon with 5.6 inches of rain, and the driest month is August with 3.0 inches. The wettest season is Summer with 31% of yearly precipitation and 23% occurs in Spring, which is the driest season. The annual rainfall of 46.4 inches in Mount Vernon means that it is wetter than most places in Indiana.

May is the rainiest month in Frederick with 11.3 days of rain, and October is the driest month with only 7.5 rainy days. There are 107.2 rainy days annually in Frederick, which is less rainy than most places in Maryland. The rainiest season is Summer when it rains 29% of the time and the driest is Spring with only a 23% chance of a rainy day.

May is the rainiest month in Mount Vernon with 11.1 days of rain, and August is the driest month with only 6.4 rainy days. There are 108.1 rainy days annually in Mount Vernon, which is less rainy than most places in Indiana. The rainiest season is Summer when it rains 30% of the time and the driest is Winter with only a 22% chance of a rainy day.

An annual snowfall of 23.1 inches in Frederick means that it is snowier than most places in Maryland.

An annual snowfall of 9.1 inches in Mount Vernon means that it is one of the least snowy places in Indiana.

January is the snowiest month in Frederick with 8.6 inches of snow, and 6 months of the year have significant snowfall.

February is the snowiest month in Mount Vernon with 2.8 inches of snow, and 4 months of the year have significant snowfall.