The remote server returned an error: (400) Bad Request.The remote server returned an error: (400) Bad Request. 2025 Compare Climate & Weather: Simpsonville, SC vs Rolla, MO

2025 Compare Climate & Weather:
Simpsonville, SC vs Rolla, MO

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Highlights

On average, there are 193 sunny days per year in Rolla. Simpsonville averages 224 sunny days per year. The US average is 205 sunny days.

Rolla, Missouri gets 46.4 inches of rain, on average, per year. Simpsonville, South Carolina gets 48.2 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Rolla averages 12.8 inches of snow per year. Simpsonville averages 2.9 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Rolla, Missouri
Summer High: the July high is around 88.1 degrees
Winter Low: the January low is 20.8
Rain: averages 46.4 inches of rain a year
Snow: averages 12.8 inches of snow a year

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

BestPlaces Comfort Index
Rolla

The annual BestPlaces Comfort Index for Rolla is 7.2 (10=best), which means it is more comfortable than most places in Missouri.

7.2 / 10
September, May and June are the most pleasant months in Rolla, while January and December are the least comfortable months.

Simpsonville

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.

7.5 / 10
May, September and October are the most pleasant months in Simpsonville, while July and January are the least comfortable months.

Average Monthly High / Low (°F)
MonthSimpsonville, SCRolla, MO
January51° / 31°41° / 21°
February55° / 34°46° / 25°
March63° / 40°56° / 34°
April72° / 48°67° / 44°
May80° / 57°75° / 53°
June87° / 66°83° / 62°
July90° / 70°88° / 67°
August88° / 69°88° / 65°
September82° / 62°79° / 56°
October72° / 50°68° / 45°
November63° / 41°56° / 35°
December53° / 33°43° / 24°
Hot, Freezing, Rainy, Snowy Days: Simpsonville / Rolla
MonthHot DaysFreezing DaysRainy DaysSnowy Days
January0 / 017 / 269 / 81 / 3
February0 / 012 / 229 / 80 / 3
March0 / 06 / 149 / 110 / 1
April0 / 01 / 38 / 110 / 0
May1 / 00 / 08 / 130 / 0
June9 / 30 / 09 / 110 / 0
July16 / 120 / 010 / 100 / 0
August11 / 120 / 09 / 80 / 0
September3 / 20 / 07 / 80 / 0
October0 / 01 / 17 / 90 / 0
November0 / 06 / 128 / 100 / 1
December0 / 015 / 259 / 90 / 2
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.

July is the hottest month for Rolla with an average high temperature of 88.1°, which ranks it as about average compared to other places in Missouri. In Rolla, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Rolla are September, May and June.
January has the coldest nighttime temperatures for Simpsonville with an average of 31.0°. This is colder than most places in South Carolina.

January has the coldest nighttime temperatures for Rolla with an average of 20.8°. This is about average compared to other places in Missouri.

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 Rolla, there are 29.9 days annually when the high temperature is over 90°, which is cooler than most places in Missouri.

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 Rolla, there are 102.7 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Missouri.

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.

In Rolla, there are 2.6 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Missouri.

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.


May is the wettest month in Rolla with 5.2 inches of rain, and the driest month is January with 2.4 inches. The wettest season is Summer with 29% of yearly precipitation and 17% occurs in Spring, which is the driest season. The annual rainfall of 46.4 inches in Rolla means that it is wetter than most places in Missouri.

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.

May is the rainiest month in Rolla with 12.6 days of rain, and September is the driest month with only 7.9 rainy days. There are 115.1 rainy days annually in Rolla, which is one of the rainiest places in Missouri. The rainiest season is Summer when it rains 30% of the time and the driest is Spring with only a 22% chance of a rainy day.

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

An annual snowfall of 12.8 inches in Rolla means that it is about average compared to other places in Missouri.
January is the snowiest month in Simpsonville with 1.5 inches of snow, and 3 months of the year have significant snowfall.

January is the snowiest month in Rolla with 4.0 inches of snow, and 5 months of the year have significant snowfall.

DID YOU KNOW?

Many people confuse Weather and Climate, but they are different. Weather refers to the conditions of the atmosphere over a short period of time, while Climate refers to the conditions of the atmosphere over a long period of time.

Weather, more specifically, refers to how the atmosphere behaves and its effects on life and human activities. Most people think of Weather in terms of what can be observed: temperature, humidity, precipitation, and cloudy/sunny conditions. Weather conditions constantly change on a minute-to-minute basis.

Climate is a record of the average weather conditions for a given place over a long period of time, often referred to as Climate Normals. A 30-year period of record is a common requirement to be considered a Climate Normal.

Reviews for Simpsonville    2 Reviews
Jill · Sherman Oaks, CA
re:
Over 16 years ago

Hi. I'd like to know if you still feel the same way about living in Broomfield. I went there this past July to check it out (along with Lafayette, Boulder (can't  More

   |    Reply
NC For Me · Apex, NC
re:
Over 16 years ago

Apex is perfect for what you are looking for. It's close enough to Raleigh, Durham, Chapel Hill to find a job and Cary the next town over, is a little more expensive but  More

   |    Reply

Start Your Review of Simpsonville

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Reviews for Rolla    2 Reviews
Jill · Sherman Oaks, CA
re:
Over 16 years ago

Hi. I'd like to know if you still feel the same way about living in Broomfield. I went there this past July to check it out (along with Lafayette, Boulder (can't  More

   |    Reply
NC For Me · Apex, NC
re:
Over 16 years ago

Apex is perfect for what you are looking for. It's close enough to Raleigh, Durham, Chapel Hill to find a job and Cary the next town over, is a little more expensive but  More

   |    Reply

Start Your Review of Rolla

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Zips In Simpsonville, South Carolina
29680
Zips In ROLLA, MISSOURI
65401
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