Climate and monthly weather forecast
Charleston, MS

Weather in January

January, like December, in Charleston, Mississippi, is another fresh winter month, with an average temperature ranging between max 50°F (10°C) and min 35.6°F (2°C). With an average high-temperature of 50°F (10°C) and an average low-temperature of 35.6°F (2°C), January is the coldest month. Weather in January »

Weather in February

The last month of the winter, February, is another cool month in Charleston, Mississippi, with temperature in the range of an average low of 39.7°F (4.3°C) and an average high of 54.5°F (12.5°C). In February, the average high-temperature is practically the same as in January - a still fresh 54.5°F (12.5°C). Weather in February »

Weather in March

The first month of the spring, March, is an enjoyable month in Charleston, Mississippi, with an average temperature ranging between max 63.1°F (17.3°C) and min 46.6°F (8.1°C). In March, the average high-temperature marginally rises from a fresh 54.5°F (12.5°C) in February to an enjoyable 63.1°F (17.3°C). Weather in March »

Weather in April

April in Charleston, Mississippi, is an agreeable spring month, with an average temperature ranging between min 54.1°F (12.3°C) and max 72.9°F (22.7°C). In Charleston, Mississippi, the average high-temperature in April rises from an enjoyable 63.1°F (17.3°C) in March to a pleasant 72.9°F (22.7°C). Weather in April »

Weather in May

The last month of the spring, May, is a warm month in Charleston, Mississippi, with an average temperature varying between 62.8°F (17.1°C) and 81.1°F (27.3°C). In Charleston, the average high-temperature in May slightly increases from a pleasant 72.9°F (22.7°C) in April to a moderately hot 81.1°F (27.3°C). Weather in May »

Weather in June

June, the first month of the summer in Charleston, is a hot month, with an average temperature ranging between min 70°F (21.1°C) and max 89.2°F (31.8°C). In Charleston, the average high-temperature in June marginally rises from a moderately hot 81.1°F (27.3°C) in May to a tropical 89.2°F (31.8°C). Weather in June »

Weather in July

July, the same as June, in Charleston, Mississippi, is another hot summer month, with an average temperature ranging between min 72.3°F (22.4°C) and max 90.9°F (32.7°C). July is the warmest month, with an average high-temperature of 90.9°F (32.7°C) and an average low-temperature of 72.3°F (22.4°C). In July, the average heat index is appraised at a scorching 111.2°F (44°C). Weather in July »

Weather in August

August, the last month of the summer in Charleston, is another tropical month, with an average temperature fluctuating between 71.1°F (21.7°C) and 90.1°F (32.3°C). In Charleston, the average high-temperature in August is relatively the same as in July - a still hot 90.1°F (32.3°C). Weather in August »

Weather in September

September, the first month of the autumn in Charleston, is still a warm month, with an average temperature ranging between max 85.8°F (29.9°C) and min 66°F (18.9°C). In September, the average high-temperature is essentially the same as in August - a warm 85.8°F (29.9°C). Weather in September »

Weather in October

October, like September, in Charleston, Mississippi, is another warm autumn month, with an average temperature varying between 74.5°F (23.6°C) and 54.5°F (12.5°C). In Charleston, the average high-temperature in October drops from a warm 85.8°F (29.9°C) in September to a still moderately hot 74.5°F (23.6°C). Weather in October »

Weather in November

The last month of the autumn, November, is also an enjoyable month in Charleston, Mississippi, with an average temperature fluctuating between 61.3°F (16.3°C) and 45°F (7.2°C). In Charleston, the average high-temperature in November drops from a moderately hot 74.5°F (23.6°C) in October to a comfortable 61.3°F (16.3°C). Weather in November »

Weather in December

The first month of the winter, December, is still a cool month in Charleston, Mississippi, with temperature in the range of an average low of 39.7°F (4.3°C) and an average high of 53.2°F (11.8°C). In December, the average high-temperature slightly decreases from a comfortable 61.3°F (16.3°C) in November to a fresh 53.2°F (11.8°C). Weather in December »
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FAQ

What is the coldest month in Charleston?

The coldest month in Charleston, Mississippi, is January, with an average high-temperature of 50°F (10°C) and an average low-temperature of 35.6°F (2°C).

How many days does it rain in Charleston?

In Charleston, Mississippi, during the entire year, the rain falls for 113.7 days and collects up to 13.27" (337mm) of precipitation.

When does it snow in Charleston?

Months with snowfall in Charleston are January, February, November and December.

How many days does it snow in Charleston?

In Charleston, Mississippi, during the entire year, snow falls for 2.5 days and aggregates up to 0.35" (9mm) of snow.

What is the month with the lowest UV index in Charleston?

January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index.

What are the most humid months in Charleston?

February, March and December, with an average relative humidity of 79%, are most humid months.

When does it snow the most in Charleston?

The month with the most snowfall is February, when snow falls for 0.9 days and typically aggregates up to 0.2" (5mm) of snow.

What is the month with the least sunshine in Charleston?

February has the least sunshine of the year in Charleston, with an average of 4.6h of sunshine.

When it does not snow in Charleston?

In Charleston, snow does not fall in March through October.

When is Daylight Saving Time (DST) in Charleston?

On Sunday, March 12. 2023, at 2:00 am, Daylight Saving Time starts in Charleston, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 5. 2023, at 2:00 am, and the time zone reverts from CDT to CST.

When are the longest days in Charleston?

The month with the longest days in Charleston, Mississippi, is June, with an average of 14h and 23min of daylight.

What month has the most sunshine in Charleston?

With an average of 10.5h of sunshine, June has the most sunshine of the year in Charleston.

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

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

What is the warmest month in Charleston?

With an average high-temperature of 90.9°F (32.7°C) and an average low-temperature of 72.3°F (22.4°C), July is the warmest month.

What is the wettest month in Charleston?

The month with the most rainfall is July, when the rain falls for 14.4 days and typically aggregates up to 1.57" (40mm) of precipitation.

What is the driest month in Charleston?

September is the month with the least rainfall. Rain falls for 8.5 days and accumulates 0.43" (11mm) of precipitation.

What is the least humid month in Charleston?

October is the least humid month in Charleston, Mississippi, with an average relative humidity of 69%.

What is the month with the shortest days in Charleston?

The month with the shortest days is December, with an average of 9h and 56min of daylight.

Average temperature
Charleston, MS

Average temperature - Charleston, MS

The warmest month (with the highest average high temperature) is July (90.9°F).
The month with the lowest average high temperature is January (50°F).

The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is January (35.6°F).

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Average pressure
Charleston, MS

Average pressure - Charleston, MS

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

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Average wind speed
Charleston, MS

Average wind speed - Charleston, MS

The windiest month (with the highest average wind speed) is February (8.2mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average humidity
Charleston, MS

Average humidity - Charleston, MS

The months with the highest relative humidity are February, March and December (79%).
The month with the lowest relative humidity is October (69%).

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Average rainfall
Charleston, MS

Average rainfall - Charleston, MS

The wettest month (with the highest rainfall) is July (1.57").
The driest month (with the least rainfall) is September (0.43").

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Average rainfall days
Charleston, MS

Average rainfall days - Charleston, MS

The month with the highest number of rainy days is July (14.4 days).
The month with the least rainy days is November (5.3 days).

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Average snowfall
Charleston, MS

Average snowfall - Charleston, MS

The month with the highest snowfall is February (0.2").
The months with the least snowfall are March, April, May, June, July, August, September and October (0").

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Average snowfall days
Charleston, MS

Average snowfall days - Charleston, MS

The month with the highest number of snowfall days is February (0.9 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).

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Average daylight / Average sunshine
Charleston, MS

Average daylight / Average sunshine - Charleston, MS

The month with the longest days is June (Average daylight: 14h and 23min).
The month with the shortest days is December (Average daylight: 9h and 56min).

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days
Charleston, MS

Average sunshine days - Charleston, MS

The month with the most sunshine days is November (23.5 days).
The month with the least sunshine days is July (13.5 days).

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Average UV index
Charleston, MS

Average UV index - Charleston, MS

The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).

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Average visibility
Charleston, MS

Average visibility - Charleston, MS

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

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