Climate and monthly weather forecast
Charleston, AR

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Weather in January

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

Weather in February

February, the last month of the winter in Charleston, is a cool month, with an average temperature ranging between min 34.9°F (1.6°C) and max 51.4°F (10.8°C). With the advent of February, Charleston's high-temperatures adjust to a cool 51.4°F (10.8°C), closely aligning with the preceding month. Weather in February »

Weather in March

March, the first month of the spring in Charleston, is a refreshing month, with an average temperature fluctuating between 42.4°F (5.8°C) and 61.3°F (16.3°C). An increase in the average high-temperature marks March, moving from February's fresh 51.4°F (10.8°C) to a refreshing 61.3°F (16.3°C). Weather in March »

Weather in April

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

Weather in May

The last month of the spring, May, is a moderately hot month in Charleston, Arkansas, with an average temperature ranging between min 58.3°F (14.6°C) and max 78.8°F (26°C). May's arrival is noted with a slight increase in the average high-temperature, moving 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 hot month, with an average temperature varying between 66.9°F (19.4°C) and 89.1°F (31.7°C). Charleston's transition into June is marked by a temperature shift, moving from a moderately hot 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 a hot summer month in Charleston, Arkansas, with an average temperature varying between 92.8°F (33.8°C) and 70.3°F (21.3°C). The warmest period is July, when temperatures fluctuate between an average high of 92.8°F (33.8°C) and a low of 70.3°F (21.3°C). July's heat index is calculated to be a burning hot 114.8°F (46°C). Weather in July »

Weather in August

The last month of the summer, August, is another tropical month in Charleston, Arkansas, with an average temperature fluctuating between 91.4°F (33°C) and 68.7°F (20.4°C). With August's arrival, Charleston notes an average high-temperature of a still tropical 91.4°F (33°C), closely following the trend of the preceding month. Weather in August »

Weather in September

September, the first month of the autumn in Charleston, is also a moderately hot month, with an average temperature ranging between min 62.4°F (16.9°C) and max 84.4°F (29.1°C). September indicates a minor shift in the average high-temperature, from August's tropical 91.4°F (33°C) to a warm 84.4°F (29.1°C). Weather in September »

Weather in October

October, the same as September, in Charleston, Arkansas, is an agreeable autumn month, with an average temperature fluctuating between 72°F (22.2°C) and 51.4°F (10.8°C). October brings a decrease in the average high-temperature, shifting from a warm 84.4°F (29.1°C) in September to an agreeable 72°F (22.2°C). Weather in October »

Weather in November

November, the last month of the autumn in Charleston, is another mild month, with an average temperature varying between 41.7°F (5.4°C) and 59.5°F (15.3°C). November's arrival coincides with a drop in the average high-temperature, decreasing from October's pleasant 72°F (22.2°C) to a refreshing 59.5°F (15.3°C). Weather in November »

Weather in December

December, the first month of the winter in Charleston, is still a cool month, with an average temperature varying between 50.2°F (10.1°C) and 35.1°F (1.7°C). A change in temperatures is noted as November gives way to December, with average highs reducing from a refreshing 59.5°F (15.3°C) to a fresh 50.2°F (10.1°C). Weather in December »
Updated: Aug 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest time of year?

In Charleston, the average lowest temperatures are observed in January, with a high of 48°F (8.9°C) and a low of 31.5°F (-0.3°C).

What is the driest month?

The month with the least rainfall is January, when the rain falls for 7.3 days and typically collects 0.91" (23mm) of precipitation.

How much does it rain?

In Charleston, during the entire year, the rain falls for 123.9 days and collects up to 20.94" (532mm) of precipitation.

When does it snow?

Months with snowfall are January through March and December.

How many days does it snow?

In Charleston, 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?

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

What is the snowiest month?

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

What are the most humid months?

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

When is Daylight Saving Time (DST)?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.

When it does not snow?

In Charleston, snow does not fall in April through November.

What is the rainiest month in Charleston?

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

When are the longest days?

With an average of 14h and 30min of daylight, June has the longest days of the year.

When is the highest UV index?

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

What part of the year is the hottest?

July registers as the month with the average highest temperatures, reaching 92.8°F (33.8°C) at its peak and 70.3°F (21.3°C) at the lowest.

What are the least humid months?

The months with the lowest humidity are July and August, with an average relative humidity of 70%.

What month has the most sunshine?

With an average of 10.9h of sunshine, July has the most sunshine of the year.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 48min of daylight.

When is the lowest UV index?

December is the month with the lowest UV index, with an average maximum UV index of 2.

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).

Average pressure
Charleston, AR

Average pressure - Charleston, AR

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

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).

Average humidity
Charleston, AR

Average humidity - Charleston, AR

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

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").

Average rainfall days
Charleston, AR

Average rainfall days - Charleston, AR

The 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).

Average snowfall
Charleston, AR

Average snowfall - Charleston, AR

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

Average snowfall days
Charleston, AR

Average snowfall days - Charleston, AR

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

Average daylight / Average sunshine
Charleston, AR

Average daylight / Average sunshine - Charleston, AR

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 30min).

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).

Average visibility
Charleston, AR

Average visibility - Charleston, AR

The 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).

Charleston, Arkansas, USA

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