Monthly weather forecast and climate
Charleston, AR

Weather in January

January, like December, is a frosty winter month in Charleston, Arkansas, with temperature in the range of an average low of 31.5°F (-0.3°C) and an average high of 48°F (8.9°C). January is the coldest month, with an average high-temperature of 48°F (8.9°C) and an average low-temperature of 31.5°F (-0.3°C). Weather in January »

Weather in February

February, the last month of the winter, in Charleston, is a fresh month, with average temperature ranging between max 51.4°F (10.8°C) and min 34.9°F (1.6°C). In February, the average high-temperature is practically the same as in January - a fresh 51.4°F (10.8°C). Weather in February »

Weather in March

The first month of the spring, March, is a comfortable month in Charleston, Arkansas, with average temperature varying between 42.4°F (5.8°C) and 61.3°F (16.3°C). In March, the average high-temperature increases, from a fresh 51.4°F (10.8°C) in February, to a comfortable 61.3°F (16.3°C). Weather in March »

Weather in April

April is an agreeable spring month in Charleston, Arkansas, with average temperature ranging between min 50°F (10°C) and max 70.5°F (21.4°C). In Charleston, the average high-temperature in April increases, from a comfortable 61.3°F (16.3°C) in March, to a pleasant 70.5°F (21.4°C). Weather in April »

Weather in May

May, the last month of the spring, in Charleston, is a moderately hot month, with average temperature ranging between max 78.8°F (26°C) and min 58.3°F (14.6°C). In May, the average high-temperature slightly increases, from an agreeable 70.5°F (21.4°C) in April, to a moderately hot 78.8°F (26°C). Weather in May »

Weather in June

June, the first month of the summer, in Charleston, is a tropical month, with average temperature fluctuating between 89.1°F (31.7°C) and 66.9°F (19.4°C). In Charleston, the average high-temperature rises, from a warm 78.8°F (26°C) in May, to a tropical 89.1°F (31.7°C). Weather in June »

Weather in July

July, like June, is another hot summer month in Charleston, Arkansas, with average temperature ranging between max 92.8°F (33.8°C) and min 70.3°F (21.3°C). With an average high-temperature of 92.8°F (33.8°C) and an average low-temperature of 70.3°F (21.3°C), July is the warmest month. The average heat index is appraised at a blazing hot 115°F (46.1°C). Weather in July »

Weather in August

August, the last month of the summer, in Charleston, is another hot month, with temperature in the range of an average low of 68.7°F (20.4°C) and an average high of 91.4°F (33°C). In Charleston, the average high-temperature is essentially the same as in July - a still tropical 91.4°F (33°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Charleston, Arkansas, with average temperature ranging between min 62.4°F (16.9°C) and max 84.4°F (29.1°C). In September, the average high-temperature slightly decreases, from a hot 91.4°F (33°C) in August, to a warm 84.4°F (29.1°C). Weather in September »

Weather in October

October, like September, is another pleasant autumn month in Charleston, Arkansas, with average temperature varying between 72°F (22.2°C) and 51.4°F (10.8°C). In Charleston, the average high-temperature in October drops, from a warm 84.4°F (29.1°C) in September, to a pleasant 72°F (22.2°C). Weather in October »

Weather in November

The last month of the autumn, November, is another mild month in Charleston, Arkansas, with average temperature ranging between max 59.5°F (15.3°C) and min 41.7°F (5.4°C). In Charleston, the average high-temperature drops, from an agreeable 72°F (22.2°C) in October, to a mild 59.5°F (15.3°C). Weather in November »

Weather in December

The first month of the winter, December, is also a fresh month in Charleston, Arkansas, with average temperature varying between 35.1°F (1.7°C) and 50.2°F (10.1°C). In December, the average high-temperature decreases, from a moderate 59.5°F (15.3°C) in November, to a cool 50.2°F (10.1°C). Weather in December »
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FAQ

What is the coldest month in Charleston?

With an average high-temperature of 48°F (8.9°C) and an average low-temperature of 31.5°F (-0.3°C), January is the coldest month.

How many days does it rain in Charleston?

Throughout the year, in Charleston, Arkansas, there are 123.9 rainfall days, and 20.94" (532mm) of precipitation is accumulated.

What is the driest month in Charleston?

January is the month with the least rainfall. Rain falls for 7.3 days and accumulates 0.91" (23mm) of precipitation.

When does it snow in Charleston?

January through March and December are months with snowfall.

How much does it snow in Charleston?

In Charleston, Arkansas, during the entire year, snow falls for 3.6 days, and aggregates up to 0.63" (16mm) of snow.

What is the month with the least sunshine in Charleston?

The month with the least sunshine is January, with an average of 5.5h of sunshine.

When does it snow the most in Charleston?

The month with the most snowfall is February when snow falls for 1.6 days and typically aggregates up to 0.28" (7mm) of snow.

What is the most humid month in Charleston?

March and May, with an average relative humidity of 78%, are most humid months.

When it does not snow in Charleston?

April through November are months without snowfall in Charleston, Arkansas.

What is the wettest month in Charleston?

May is the month with the most rainfall. Rain falls for 13.3 days and accumulates 3.19" (81mm) of precipitation.

When are the longest days in Charleston?

The month with the longest days in Charleston is June, with an average of 14.5h of daylight.

What are the months with the highest UV index in Charleston?

June and July, with an average maximum UV index of 7, are months with the highest UV index.

What is the warmest month in Charleston?

The warmest month is July, with an average high-temperature of 92.8°F (33.8°C) and an average low-temperature of 70.3°F (21.3°C).

What is the least humid month in Charleston?

July and August, with an average relative humidity of 70%, are the least humid months in Charleston, Arkansas.

What month has the most sunshine in Charleston?

July has the most sunshine of the year in Charleston, Arkansas, with an average of 10.9h of sunshine.

What is the month with the shortest days in Charleston?

The month with the shortest days is December, with an average of 9.8h of daylight.

When is the lowest UV index in Charleston?

With an average maximum UV index of 2, December is the month with the lowest UV index in Charleston, Arkansas.

Average temperature
Charleston, AR

Average temperature - Charleston, AR

The warmest month (with the highest average high temperature) is July (92.8°F).
The month with the lowest average high temperature is January (48°F).

The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).

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Average pressure
Charleston, AR

Average pressure - Charleston, AR

The month with the highest atmospheric pressure is January (30.17").
The month with the lowest atmospheric pressure is June (29.93").

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Average wind speed
Charleston, AR

Average wind speed - Charleston, AR

The windiest month (with the highest average wind speed) is April (7.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).

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Average humidity
Charleston, AR

Average humidity - Charleston, AR

Months with the highest relative humidity are March and May (78%).
Months with the lowest relative humidity are July and August (70%).

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Average rainfall
Charleston, AR

Average rainfall - Charleston, AR

The wettest month (with the highest rainfall) is May (3.19").
The driest month (with the least rainfall) is January (0.91").

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Average rainfall days
Charleston, AR

Average rainfall days - Charleston, AR

Months with the highest number of rainy days are May and July (13.3 days).
The month with the least rainy days is January (7.3 days).

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Average snowfall
Charleston, AR

Average snowfall - Charleston, AR

The month with the highest snowfall is February (0.28").
Months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days
Charleston, AR

Average snowfall days - Charleston, AR

The month with the highest number of snowfall days is February (1.6 days).
Months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight / Average sunshine
Charleston, AR

Average daylight / Average sunshine - Charleston, AR

The month with the longest days is June (Average daylight: 14.5h).
The month with the shortest days is December (Average daylight: 9.8h).

The month with the most sunshine is July (Average sunshine: 10.9h).
The month with the least sunshine is January (Average sunshine: 5.5h).

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Average sunshine days
Charleston, AR

Average sunshine days - Charleston, AR

The month with the most sunshine days is January (22.3 days).
The month with the least sunshine days is July (14.8 days).

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Average visibility
Charleston, AR

Average visibility - Charleston, AR

Months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).

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