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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Climate and monthly weather forecast
Weather in January
January, like December, in Charleston, Mississippi, is another fresh winter month, with an average temperature ranging between min 35.6°F (2°C) and max 50°F (10°C). January, marked by an average high-temperature of 50°F (10°C) and a low-temperature of 35.6°F (2°C), 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 an average temperature ranging between max 54.5°F (12.5°C) and min 39.7°F (4.3°C). The introduction of February notes a subtle temperature variation to a still cool 54.5°F (12.5°C) from January's 50°F (10°C). Weather in February »
Weather in March
March, the first month of the spring in Charleston, is an enjoyable month, with an average temperature fluctuating between 63.1°F (17.3°C) and 46.6°F (8.1°C). A slight uplift in the average high-temperature marks March, adjusting from February's fresh 54.5°F (12.5°C) to a comfortable 63.1°F (17.3°C). Weather in March »
Weather in April
April is an agreeable spring month in Charleston, Mississippi, with an average temperature ranging between min 54.1°F (12.3°C) and max 72.9°F (22.7°C). With the onset of April, Charleston's average high-temperature experiences a rise, moving from March's refreshing 63.1°F (17.3°C) to an agreeable 72.9°F (22.7°C). Weather in April »
Weather in May
May, the last month of the spring in Charleston, is a moderately hot month, with an average temperature fluctuating between 62.8°F (17.1°C) and 81.1°F (27.3°C). A subtle rise in the average high-temperature is observed during May, adjusting 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 tropical month, with temperature in the range of an average high of 89.2°F (31.8°C) and an average low of 70°F (21.1°C). As Charleston transitions into June, the average high-temperature is observed to slightly rise from a warm 81.1°F (27.3°C) in May to a hot 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 varying between 90.9°F (32.7°C) and 72.3°F (22.4°C). Charleston records the warmest temperatures in July, averaging a high of 90.9°F (32.7°C) and a low of 72.3°F (22.4°C). July's heat index is evaluated 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 hot month, with an average temperature ranging between min 71.1°F (21.7°C) and max 90.1°F (32.3°C). July's transformation into August witnesses an average high-temperature of a still tropical 90.1°F (32.3°C), noting a minor change from the preceding month. Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Charleston, Mississippi, with an average temperature varying between 66°F (18.9°C) and 85.8°F (29.9°C). As Charleston, Mississippi, transitions into September, the average high-temperature stands at a warm 85.8°F (29.9°C), offering little variation from the preceding month. Weather in September »
Weather in October
October, like September, in Charleston, Mississippi, is a moderately hot autumn month, with an average temperature varying between 54.5°F (12.5°C) and 74.5°F (23.6°C). Charleston's October weather shows a moderate shift in high-temperatures, falling from September's warm 85.8°F (29.9°C) 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 another comfortable month in Charleston, Mississippi, with an average temperature varying between 61.3°F (16.3°C) and 45°F (7.2°C). November's onset brings a reduction in the average high-temperature, from a warm 74.5°F (23.6°C) in October to an enjoyable 61.3°F (16.3°C). Weather in November »
Weather in December
December, the first month of the winter in Charleston, is also a fresh month, with an average temperature fluctuating between 53.2°F (11.8°C) and 39.7°F (4.3°C). In Charleston, the average high-temperature in December gently drops from an enjoyable 61.3°F (16.3°C) in November to a cool 53.2°F (11.8°C). Weather in December »
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year in Charleston?
January, with average temperatures reaching a high of 50°F (10°C) and a low of 35.6°F (2°C), is the coldest month.
How many days does it rain in Charleston?
In Charleston, 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, Mississippi, are January, February, November and December.
How many days does it snow in Charleston?
Throughout the year, in Charleston, Mississippi, there are 2.5 snowfall days, and 0.35" (9mm) of snow is accumulated.
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 in Charleston, Mississippi.
What is the most humid month in Charleston?
February, March and December, with an average relative humidity of 79%, are most humid months in Charleston.
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?
March through October are months without snowfall.
When is Daylight Saving Time (DST) in Charleston?
On Sunday, March 10. 2024, 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 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.
When are the longest days in Charleston?
With an average of 14h and 24min of daylight, June has the longest days of the year in Charleston.
What month has the most sunshine in Charleston?
The month with the most sunshine is June, with an average of 10.5h of sunshine.
When is 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 are the warmest months in Charleston?
The warmest period in Charleston is July, when temperatures fluctuate between an average high of 90.9°F (32.7°C) and a low of 72.3°F (22.4°C).
What is the rainiest month in Charleston?
July is the month with the most rainfall. Rain falls for 14.4 days and accumulates 1.57" (40mm) of precipitation.
What is the driest month in Charleston?
September is the month with the least rainfall in Charleston, Mississippi. 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, with an average relative humidity of 69%.
What is the month with the shortest days in Charleston?
With an average of 9h and 54min of daylight, December has the shortest days of the year.
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).
Average pressure
Charleston, MS
- Average pressure in January:
30.17"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.98"Hg - Average pressure in May:
29.98"Hg - Average pressure in June:
29.95"Hg
- Average pressure in July:
29.98"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.14"Hg - Average pressure in December:
30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed
Charleston, MS
- Average wind speed in January:
8.1mph - Average wind speed in February:
8.2mph - Average wind speed in March:
8mph - Average wind speed in April:
8mph - Average wind speed in May:
6.6mph - Average wind speed in June:
5.7mph
- Average wind speed in July:
5.2mph - Average wind speed in August:
5mph - Average wind speed in September:
5.5mph - Average wind speed in October:
6.6mph - Average wind speed in November:
7.1mph - Average wind speed in December:
7.6mph
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).
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%).
Average rainfall
Charleston, MS
- Average rainfall in January:
1.02" - Average rainfall in February:
1.42" - Average rainfall in March:
1.18" - Average rainfall in April:
1.38" - Average rainfall in May:
1.1" - Average rainfall in June:
1.34"
- Average rainfall in July:
1.57" - Average rainfall in August:
1.14" - Average rainfall in September:
0.43" - Average rainfall in October:
0.91" - Average rainfall in November:
0.63" - Average rainfall in December:
1.14"
The wettest month (with the highest rainfall) is July (1.57").
The driest month (with the least rainfall) is September (0.43").
Average rainfall days
Charleston, MS
- Average rainfall days in January:
8.5 days - Average rainfall days in February:
8.4 days - Average rainfall days in March:
10.2 days - Average rainfall days in April:
9.3 days - Average rainfall days in May:
10.2 days - Average rainfall days in June:
10.9 days
- Average rainfall days in July:
14.4 days - Average rainfall days in August:
12.7 days - Average rainfall days in September:
8.5 days - Average rainfall days in October:
6.8 days - Average rainfall days in November:
5.3 days - Average rainfall days in December:
8.5 days
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).
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").
Average snowfall days
Charleston, MS
- Average snowfall days in January:
0.4 days - Average snowfall days in February:
0.9 days - Average snowfall days in March:
0.3 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.1 days - Average snowfall days in November:
0.4 days - Average snowfall days in December:
0.4 days
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).
Average daylight / Average sunshine
Charleston, MS
- Average daylight in January:
10h and 1min - Average daylight in February:
11h and 0min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
13h and 5min - Average daylight in June:
14h and 2min
- Average daylight in July:
14h and 1min - Average daylight in August:
13h and 2min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 2min - Average daylight in November:
10h and 2min - Average daylight in December:
9h and 5min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in January:
4h and 5min - Average sunshine in February:
4h and 4min - Average sunshine in March:
6h and 2min - Average sunshine in April:
9h and 1min - Average sunshine in May:
9h and 4min - Average sunshine in June:
10h and 3min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
10h and 2min - Average sunshine in September:
9h and 3min - Average sunshine in October:
6h and 3min - Average sunshine in November:
5h and 4min - Average sunshine in December:
4h and 5min
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).
Average sunshine days
Charleston, MS
- Average sunshine days in January:
20.4 days - Average sunshine days in February:
17.4 days - Average sunshine days in March:
18.5 days - Average sunshine days in April:
19.2 days - Average sunshine days in May:
19.3 days - Average sunshine days in June:
16.7 days
- Average sunshine days in July:
13.5 days - Average sunshine days in August:
14.5 days - Average sunshine days in September:
18.3 days - Average sunshine days in October:
22.7 days - Average sunshine days in November:
23.5 days - Average sunshine days in December:
20.6 days
The month with the most sunshine days is November (23.5 days).
The month with the least sunshine days is July (13.5 days).
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).
Average cloud cover
Charleston, MS
The month with the most cloud cover is February (Cloud cover 49).
The months with the least cloud cover are June and September (Cloud cover 28).
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).