2025 Compare Climate & Weather:
Rapid City, SD vs Shelbyville, KY

Highlights

On average, there are 191 sunny days per year in Shelbyville. Rapid City averages 226 sunny days per year. The US average is 205 sunny days.

Shelbyville, Kentucky gets 48.2 inches of rain, on average, per year. Rapid City, South Dakota gets 18.2 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Shelbyville averages 11.8 inches of snow per year. Rapid City averages 38 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Shelbyville, Kentucky
Summer High: the July high is around 87.7 degrees
Winter Low: the January low is 21.4
Rain: averages 48.2 inches of rain a year
Snow: averages 11.8 inches of snow a year

Rapid City, South Dakota
Summer High: the July high is around 85.3 degrees
Winter Low: the January low is 14.2
Rain: averages 18.2 inches of rain a year
Snow: averages 38 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Shelbyville is 7.1 (10=best), which means it is one of the least comfortable places in Kentucky.

The annual BestPlaces Comfort Index for Rapid City is 7.0 (10=best), which means it is one of the most pleasant places in South Dakota.

Today's Weather - Rapid City, SD

82°F

Today's Weather - Shelbyville, KY

67°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Rapid City / Shelbyville

July is the hottest month for Rapid City with an average high temperature of 85.3°, which ranks it as about average compared to other places in South Dakota. In Rapid City, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Rapid City are June, September and August.

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

January has the coldest nighttime temperatures for Rapid City with an average of 14.2°. This is one of the warmest places in South Dakota.

January has the coldest nighttime temperatures for Shelbyville with an average of 21.4°. This is one of the coldest places in Kentucky.

In Rapid City, there are 22.5 days annually when the high temperature is over 90°, which is about average compared to other places in South Dakota.

In Shelbyville, there are 29.2 days annually when the high temperature is over 90°, which is hotter than most places in Kentucky.

In Rapid City, there are 159.6 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in South Dakota.

In Shelbyville, there are 111.6 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Kentucky.

In Rapid City, there are 14.9 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in South Dakota.

In Shelbyville, there are 2.5 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in Kentucky.

May is the wettest month in Rapid City with 3.8 inches of rain, and the driest month is January with 0.3 inches. The wettest season is Autumn with 38% of yearly precipitation and 6% occurs in Spring, which is the driest season. The annual rainfall of 18.2 inches in Rapid City means that it is drier than most places in South Dakota.


May is the wettest month in Shelbyville with 5.5 inches of rain, and the driest month is September with 3.2 inches. The wettest season is Summer with 29% of yearly precipitation and 22% occurs in Winter, which is the driest season. The annual rainfall of 48.2 inches in Shelbyville means that it is wetter than most places in Kentucky.

June is the rainiest month in Rapid City with 11.8 days of rain, and November is the driest month with only 4.0 rainy days. There are 85.4 rainy days annually in Rapid City, which is rainier than most places in South Dakota. The rainiest season is Autumn when it rains 34% of the time and the driest is Spring with only a 15% chance of a rainy day.

December is the rainiest month in Shelbyville with 12.3 days of rain, and September is the driest month with only 7.7 rainy days. There are 124.3 rainy days annually in Shelbyville, which is rainier than most places in Kentucky. The rainiest season is Summer when it rains 28% of the time and the driest is Winter with only a 21% chance of a rainy day.

An annual snowfall of 38.0 inches in Rapid City means that it is about average compared to other places in South Dakota.

An annual snowfall of 11.8 inches in Shelbyville means that it is snowier than most places in Kentucky.

March is the snowiest month in Rapid City with 8.6 inches of snow, and 8 months of the year have significant snowfall.

February is the snowiest month in Shelbyville with 4.0 inches of snow, and 4 months of the year have significant snowfall.