2025 Compare Climate & Weather:
Summerville, SC vs Royal Palm Beach, FL

Highlights

On average, there are 232 sunny days per year in Royal Palm Beach. Summerville averages 209 sunny days per year. The US average is 205 sunny days.

Royal Palm Beach, Florida gets 62.7 inches of rain, on average, per year. Summerville, South Carolina gets 51 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Royal Palm Beach averages 0 inches of snow per year. Summerville averages 0.7 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Royal Palm Beach, Florida
Summer High: the July high is around 89.9 degrees
Winter Low: the January low is 55.5
Rain: averages 62.7 inches of rain a year
Snow: averages 0 inches of snow a year

Summerville, South Carolina
Summer High: the July high is around 91.5 degrees
Winter Low: the January low is 34.6
Rain: averages 51 inches of rain a year
Snow: averages 0.7 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Royal Palm Beach is 6.5 (10=best), which means it is less comfortable than most places in Florida.

The annual BestPlaces Comfort Index for Summerville is 7.3 (10=best), which means it is less comfortable than most places in South Carolina.

Today's Weather - Summerville, SC

62°F

Today's Weather - Royal Palm Beach, FL

72°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Summerville / Royal Palm Beach

July is the hottest month for Summerville with an average high temperature of 91.5°, which ranks it as warmer than most places in South Carolina. In Summerville, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Summerville are October, April and May.

August is the hottest month for Royal Palm Beach with an average high temperature of 90.4°, which ranks it as cooler than most places in Florida. In Royal Palm Beach, there are 6 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Royal Palm Beach are March, December and February.

January has the coldest nighttime temperatures for Summerville with an average of 34.6°. This is warmer than most places in South Carolina.

January has the coldest nighttime temperatures for Royal Palm Beach with an average of 55.5°. This is warmer than most places in Florida.

In Summerville, there are 60.7 days annually when the high temperature is over 90°, which is hotter than most places in South Carolina.

In Royal Palm Beach, there are 58.4 days annually when the high temperature is over 90°, which is cooler than most places in Florida.

In Summerville, there are 39.8 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in South Carolina.

In Royal Palm Beach, there are 0.4 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Florida.

In Summerville, 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 Royal Palm Beach, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Florida.

August is the wettest month in Summerville with 6.7 inches of rain, and the driest month is November with 2.8 inches. The wettest season is Autumn with 36% of yearly precipitation and 20% occurs in Summer, which is the driest season. The annual rainfall of 51.0 inches in Summerville means that it is wetter than most places in South Carolina.


June is the wettest month in Royal Palm Beach with 8.6 inches of rain, and the driest month is February with 2.9 inches. The wettest season is Autumn with 36% of yearly precipitation and 15% occurs in Spring, which is the driest season. The annual rainfall of 62.7 inches in Royal Palm Beach means that it is wetter than most places in Florida.

August is the rainiest month in Summerville with 12.3 days of rain, and November is the driest month with only 6.7 rainy days. There are 103.7 rainy days annually in Summerville, which is about average compared to other places in South Carolina. The rainiest season is Autumn when it rains 33% of the time and the driest is Summer with only a 21% chance of a rainy day.

August is the rainiest month in Royal Palm Beach with 17.4 days of rain, and April is the driest month with only 6.9 rainy days. There are 132.8 rainy days annually in Royal Palm Beach, which is rainier than most places in Florida. The rainiest season is Autumn when it rains 37% of the time and the driest is Spring with only a 18% chance of a rainy day.

An annual snowfall of 0.7 inches in Summerville means that it is about average compared to other places in South Carolina.

There is rarely any recorded snowfall in Royal Palm Beach, ranking it as one of the least snowy places in Florida.

December is the snowiest month in Summerville with 0.3 inches of snow, and no months of the year have significant snowfall.

Any measurable snowfall is a rare occurance in Royal Palm Beach.