2025 Compare Climate & Weather:
Powell, OH vs Hilton Head Island, SC

Highlights

On average, there are 215 sunny days per year in Hilton Head Island. Powell averages 178 sunny days per year. The US average is 205 sunny days.

Hilton Head Island, South Carolina gets 48.1 inches of rain, on average, per year. Powell, Ohio gets 38.8 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Hilton Head Island averages 0.1 inches of snow per year. Powell averages 22.6 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Hilton Head Island, South Carolina
Summer High: the July high is around 90.8 degrees
Winter Low: the January low is 39.2
Rain: averages 48.1 inches of rain a year
Snow: averages 0.1 inches of snow a year

Powell, Ohio
Summer High: the July high is around 84.9 degrees
Winter Low: the January low is 20.3
Rain: averages 38.8 inches of rain a year
Snow: averages 22.6 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Hilton Head Island is 7.1 (10=best), which means it is one of the least comfortable places in South Carolina.

The annual BestPlaces Comfort Index for Powell is 7.1 (10=best), which means it is more comfortable than most places in Ohio.

Today's Weather - Powell, OH

59°F

Today's Weather - Hilton Head Island, SC

82°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Powell / Hilton Head Island

July is the hottest month for Powell with an average high temperature of 84.9°, which ranks it as warmer than most places in Ohio. In Powell, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Powell are September, June and May.

July is the hottest month for Hilton Head Island with an average high temperature of 90.8°, which ranks it as cooler than most places in South Carolina. In Hilton Head Island, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Hilton Head Island are October, April and May.

January has the coldest nighttime temperatures for Powell with an average of 20.3°. This is warmer than most places in Ohio.

January has the coldest nighttime temperatures for Hilton Head Island with an average of 39.2°. This is one of the warmest places in South Carolina.

In Powell, there are 14.7 days annually when the high temperature is over 90°, which is hotter than most places in Ohio.

In Hilton Head Island, there are 51.5 days annually when the high temperature is over 90°, which is about average compared to other places in South Carolina.

In Powell, there are 115.0 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Ohio.

In Hilton Head Island, there are 17.5 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in South Carolina.

In Powell, there are 3.8 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Ohio.

In Hilton Head Island, 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.

June is the wettest month in Powell with 4.5 inches of rain, and the driest month is February with 2.1 inches. The wettest season is Autumn with 31% of yearly precipitation and 19% occurs in Spring, which is the driest season. The annual rainfall of 38.8 inches in Powell means that it is drier than most places in Ohio.


August is the wettest month in Hilton Head Island with 7.1 inches of rain, and the driest month is May with 2.2 inches. The wettest season is Autumn with 37% of yearly precipitation and 18% occurs in Summer, which is the driest season. The annual rainfall of 48.1 inches in Hilton Head Island means that it is wetter than most places in South Carolina.

April is the rainiest month in Powell with 13.4 days of rain, and September is the driest month with only 8.4 rainy days. There are 131.1 rainy days annually in Powell, which is rainier than most places in Ohio. The rainiest season is Summer when it rains 29% of the time and the driest is Winter with only a 23% chance of a rainy day.

August is the rainiest month in Hilton Head Island with 12.3 days of rain, and May is the driest month with only 6.4 rainy days. There are 103.4 rainy days annually in Hilton Head Island, which is about average compared to other places in South Carolina. The rainiest season is Autumn when it rains 32% of the time and the driest is Summer with only a 20% chance of a rainy day.

An annual snowfall of 22.6 inches in Powell means that it is about average compared to other places in Ohio.

An annual snowfall of 0.1 inches in Hilton Head Island means that it is one of the least snowy places in South Carolina.

January is the snowiest month in Powell with 7.4 inches of snow, and 6 months of the year have significant snowfall.

December is the snowiest month in Hilton Head Island with 0.1 inches of snow, and no months of the year have significant snowfall.