Duncan, SC Climate

Duncan, SC has a humid subtropical climate with hot summers and mild winters. Summers in Duncan are usually hot and humid, with temperatures often reaching into the mid-80s Fahrenheit on average. Winters in Duncan tend to be mild with temperatures rarely dropping below freezing. Precipitation is abundant throughout the year with most months receiving over 4 inches of rain on average. Thunderstorms are also common during warmer months, bringing occasional heavy rainfall and strong winds.

Duncan, South Carolina gets 48 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Duncan averages 2 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 220 sunny days per year in Duncan. The US average is 205 sunny days.

Duncan gets some kind of precipitation, on average, 109 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.

Weather Highlights

Summer High: the July high is around 91 degrees
Winter Low: the January low is 29
Rain: averages 48 inches of rain a year
Snow: averages 2 inches of snow a year

Bestplaces Comfort Index

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

6.5 Summer - 6.8 Winter

May, October and September are the most pleasant months in Duncan, while July and January are the least comfortable months.

Climate	Duncan, South Carolina	United States
	Unlock	38.1 in.
	2.3 in.	Unlock
	Unlock	106.2 days
	220 days	Unlock
	90.7°	85.8°
	Unlock	21.7°
	7.5	Unlock
	Unlock	4.3
	863 ft.	Unlock

Climate

YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

July is the hottest month for Duncan with an average high temperature of 90.7°, which ranks it as cooler than most places in South Carolina. In Duncan, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Duncan are May, April and October.

In Duncan, there are 48.4 days annually when the high temperature is over 90°, which is cooler than most places in South Carolina.

January has the coldest nighttime temperatures for Duncan with an average of 29.1°. This is one of the coldest places in South Carolina.

In Duncan, there are 74.9 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in South Carolina.

In Duncan, 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.

Humidity in Duncan can be uncomfortable during the summer, but comfortable for most of the year. The most uncomfortably humid months are July, August and June. The humid season runs from June-September and the most comfortable months are October-May.

March is the wettest month in Duncan with 4.6 inches of rain, and the driest month is April with 3.5 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 48.4 inches in Duncan means that it is wetter than most places in South Carolina.

July is the rainiest month in Duncan with 10.7 days of rain, and October is the driest month with only 7.0 rainy days. There are 109.4 rainy days annually in Duncan, which is one of the rainiest 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 2.3 inches in Duncan means that it is snowier than most places in South Carolina. January is the snowiest month in Duncan with 1.2 inches of snow, and 2 months of the year have significant snowfall.

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