2025 Compare Climate & Weather:
Rapid City, SD vs Greenville, SC

Highlights

On average, there are 220 sunny days per year in Greenville. Rapid City averages 226 sunny days per year. The US average is 205 sunny days.

Greenville, South Carolina gets 50.9 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.

Greenville averages 2.5 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

Greenville, South Carolina
Summer High: the July high is around 89.8 degrees
Winter Low: the January low is 30.9
Rain: averages 50.9 inches of rain a year
Snow: averages 2.5 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 Greenville is 7.5 (10=best), which means it is one of the most pleasant places in South Carolina.

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

70°F

Today's Weather - Greenville, SC

67°F

Average Monthly High / Low (°F)

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

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 Greenville with an average high temperature of 89.8°, which ranks it as cooler than most places in South Carolina. In Greenville, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Greenville are May, September and October.

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 Greenville with an average of 30.9°. This is colder than most places in South Carolina.

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 Greenville, there are 40.6 days annually when the high temperature is over 90°, which is cooler than most places in South Carolina.

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 Greenville, there are 57.6 days annually when the nighttime low temperature falls below freezing, which is colder than most places in South Carolina.

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 Greenville, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in South Carolina.

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.


July is the wettest month in Greenville with 4.9 inches of rain, and the driest month is April with 3.6 inches. The wettest season is Autumn with 28% of yearly precipitation and 24% occurs in Winter, which is the driest season. The annual rainfall of 50.9 inches in Greenville means that it is wetter than most places in South Carolina.

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.

July is the rainiest month in Greenville with 10.5 days of rain, and October is the driest month with only 6.9 rainy days. There are 105.1 rainy days annually in Greenville, which is rainier than most places in South Carolina. The rainiest season is Autumn when it rains 28% of the time and the driest is Winter with only a 22% 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 2.5 inches in Greenville means that it is one of the snowiest places in South Carolina.

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

January is the snowiest month in Greenville with 1.2 inches of snow, and 3 months of the year have significant snowfall.