2025 Compare Climate & Weather:
McCormick, SC vs Simpsonville, SC

Highlights

On average, there are 224 sunny days per year in Simpsonville. McCormick averages 220 sunny days per year. The US average is 205 sunny days.

Simpsonville, South Carolina gets 48.2 inches of rain, on average, per year. McCormick, South Carolina gets 45.4 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Simpsonville averages 2.9 inches of snow per year. McCormick averages 0.6 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Simpsonville, South Carolina
Summer High: the July high is around 89.8 degrees
Winter Low: the January low is 31
Rain: averages 48.2 inches of rain a year
Snow: averages 2.9 inches of snow a year

McCormick, South Carolina
Summer High: the July high is around 92.3 degrees
Winter Low: the January low is 31.4
Rain: averages 45.4 inches of rain a year
Snow: averages 0.6 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Simpsonville is 7.5 (10=best), which means it is one of the most pleasant places in South Carolina.

The annual BestPlaces Comfort Index for McCormick is 7.4 (10=best), which means it is more comfortable than most places in South Carolina.

Today's Weather - McCormick, SC

61°F

Today's Weather - Simpsonville, SC

58°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: McCormick / Simpsonville

July is the hottest month for McCormick with an average high temperature of 92.3°, which ranks it as warmer than most places in South Carolina. In McCormick, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for McCormick are April, October and May.

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

January has the coldest nighttime temperatures for McCormick with an average of 31.4°. This is about average compared to other places in South Carolina.

January has the coldest nighttime temperatures for Simpsonville with an average of 31.0°. This is colder than most places in South Carolina.

In McCormick, there are 60.8 days annually when the high temperature is over 90°, which is hotter than most places in South Carolina.

In Simpsonville, there are 40.9 days annually when the high temperature is over 90°, which is cooler than most places in South Carolina.

In McCormick, there are 48.3 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in South Carolina.

In Simpsonville, there are 57.5 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in South Carolina.

In McCormick, 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.

In Simpsonville, 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.

March is the wettest month in McCormick with 4.7 inches of rain, and the driest month is April with 2.9 inches. The wettest season is Autumn with 27% of yearly precipitation and 22% occurs in Winter, which is the driest season. The annual rainfall of 45.4 inches in McCormick means that it is drier than most places in South Carolina.


March is the wettest month in Simpsonville with 4.6 inches of rain, and the driest month is April with 3.4 inches. The wettest season is Autumn with 27% of yearly precipitation and 23% occurs in Winter, which is the driest season. The annual rainfall of 48.2 inches in Simpsonville means that it is wetter than most places in South Carolina.

January is the rainiest month in McCormick with 9.4 days of rain, and October is the driest month with only 6.1 rainy days. There are 95.1 rainy days annually in McCormick, which is one of the least rainy places in South Carolina. The rainiest season is Spring when it rains 28% of the time and the driest is Winter with only a 21% chance of a rainy day.

July is the rainiest month in Simpsonville with 9.9 days of rain, and October is the driest month with only 6.6 rainy days. There are 101.7 rainy days annually in Simpsonville, which is about average compared to other places in South Carolina. The rainiest season is Autumn 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 0.6 inches in McCormick means that it is less snowy than most places in South Carolina.

An annual snowfall of 2.9 inches in Simpsonville means that it is one of the snowiest places in South Carolina.

January is the snowiest month in McCormick with 0.4 inches of snow, and no months of the year have significant snowfall.

January is the snowiest month in Simpsonville with 1.5 inches of snow, and 3 months of the year have significant snowfall.