Climate and monthly weather forecast
Charleston, KY

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Weather in January

January, like December, in Charleston, Kentucky, is an icy winter month, with an average temperature varying between 41.2°F (5.1°C) and 28°F (-2.2°C). In Charleston, the month of January registers the lowest temperatures, averaging 41.2°F (5.1°C) at the peak and 28°F (-2.2°C) at the lowest. Weather in January »

Weather in February

The last month of the winter, February, is a frosty month in Charleston, Kentucky, with an average temperature fluctuating between 46°F (7.8°C) and 31.8°F (-0.1°C). The shift into February records an average high-temperature of a frosty 46°F (7.8°C), subtly varied from January's 41.2°F (5.1°C). Weather in February »

Weather in March

March, the first month of the spring in Charleston, is a mild month, with an average temperature varying between 55.9°F (13.3°C) and 40.3°F (4.6°C). The shift from February to March is marked by an increase in the average high-temperature, moving from a chilly 46°F (7.8°C) to a mild 55.9°F (13.3°C). Weather in March »

Weather in April

April in Charleston, Kentucky, is a refreshing spring month, with an average temperature varying between 49.3°F (9.6°C) and 66.9°F (19.4°C). As March transitions into April, Charleston sees a rise in the average high-temperature, moving from a mild 55.9°F (13.3°C) to a still refreshing 66.9°F (19.4°C). Weather in April »

Weather in May

May, the last month of the spring in Charleston, is a warm month, with temperature in the range of an average low of 58.6°F (14.8°C) and an average high of 75.9°F (24.4°C). The shift from April to May is marked by an increase in the average high-temperature, moving from an enjoyable 66.9°F (19.4°C) to a warm 75.9°F (24.4°C). Weather in May »

Weather in June

The first month of the summer, June, is still a warm month in Charleston, Kentucky, with an average temperature ranging between max 84°F (28.9°C) and min 65.8°F (18.8°C). June's arrival is noted with a slight increase in the average high-temperature, moving from 75.9°F (24.4°C) in May to a still warm 84°F (28.9°C). Weather in June »

Weather in July

July in Charleston, Kentucky, is a tropical summer month, with an average temperature varying between 86.4°F (30.2°C) and 68.4°F (20.2°C). Charleston's warmest month, July, generally records average temperatures ranging from a high of 86.4°F (30.2°C) to a low of 68.4°F (20.2°C). The heat index in July is estimated at a sweltering 100.4°F (38°C). Weather in July »

Weather in August

August, the last month of the summer in Charleston, is also a moderately hot month, with temperature in the range of an average low of 66.7°F (19.3°C) and an average high of 85.5°F (29.7°C). August's arrival registers an average high-temperature of a moderately hot 85.5°F (29.7°C), closely aligning with the temperature of the previous month. Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Charleston, Kentucky, with an average temperature varying between 80.2°F (26.8°C) and 61.3°F (16.3°C). With September's arrival, Charleston notes an average high-temperature of a still moderately hot 80.2°F (26.8°C), closely following the trend of the preceding month. Weather in September »

Weather in October

October, like September, is another pleasant autumn month in Charleston, Kentucky, with an average temperature ranging between min 50.2°F (10.1°C) and max 68.5°F (20.3°C). With October's arrival, Charleston sees a decrease in average high-temperatures, moving from a moderately hot 80.2°F (26.8°C) in September to a pleasant 68.5°F (20.3°C). Weather in October »

Weather in November

The last month of the autumn, November, is another cool month in Charleston, Kentucky, with an average temperature varying between 55.2°F (12.9°C) and 39.9°F (4.4°C). The start of November involves a temperature drop, moving from an agreeable 68.5°F (20.3°C) in October to a fresh 55.2°F (12.9°C). Weather in November »

Weather in December

The first month of the winter, December, is also a frosty month in Charleston, Kentucky, with an average temperature fluctuating between 45.7°F (7.6°C) and 34°F (1.1°C). The commencement of December involves a temperature shift, with the average high-temperature dropping from a cool 55.2°F (12.9°C) in November to a frosty 45.7°F (7.6°C). Weather in December »
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the coldest in Charleston?

Temperature readings reach their annual highs in January, averaging 41.2°F (5.1°C) and a minimum average of 28°F (-2.2°C).

How much does it rain in Charleston?

In Charleston, during the entire year, the rain falls for 118.1 days and collects up to 12.28" (312mm) of precipitation.

When does it snow in Charleston?

January through March, November and December are months with snowfall.

How many days does it snow in Charleston?

Throughout the year, in Charleston, there are 8.7 snowfall days, and 0.91" (23mm) of snow is accumulated.

What is the month with the least sunshine in Charleston?

With an average of 4.6h of sunshine, January has the least sunshine of the year in Charleston, Kentucky.

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

The months with the lowest UV index in Charleston, Kentucky, are January, February and December, with an average maximum UV index of 2.

What is the snowiest month in Charleston?

The month with the most snowfall is February, when snow falls for 2.3 days and typically aggregates up to 0.31" (8mm) of snow.

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.

What is the rainiest month in Charleston?

April is the month with the most rainfall in Charleston, Kentucky. Rain falls for 11.3 days and accumulates 1.34" (34mm) of precipitation.

When it does not snow in Charleston?

In Charleston, Kentucky, snow does not fall in April through October.

What is the most humid month in Charleston?

May is the most humid month in Charleston, Kentucky, with an average relative humidity of 80%.

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

The months with the highest UV index in Charleston, Kentucky, are May through August, with an average maximum UV index of 6.

When are the longest days in Charleston?

With an average of 14h and 42min of daylight, June has the longest days of the year.

What month has the most sunshine in Charleston?

The month with the most sunshine in Charleston is June, with an average of 10.6h of sunshine.

What time of the year is the hottest in Charleston?

With average high and low temperatures of 86.4°F (30.2°C) and 68.4°F (20.2°C) respectively, July is Charleston's warmest month.

What is the driest month in Charleston?

September is the month with the least rainfall. Rain falls for 8.7 days and accumulates 0.47" (12mm) of precipitation.

What is the least humid month in Charleston?

With an average relative humidity of 71%, October is the least humid month in Charleston.

What is the month with the shortest days in Charleston?

With an average of 9h and 42min of daylight, December has the shortest days of the year in Charleston, Kentucky.

Average temperature
Charleston, KY

Average temperature - Charleston, KY

The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (41.2°F).

The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (28°F).

Average pressure
Charleston, KY

Average pressure - Charleston, KY

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, KY

Average wind speed - Charleston, KY

The windiest month (with the highest average wind speed) is February (9.4mph).
The calmest month (with the lowest average wind speed) is July (5.5mph).

Average humidity
Charleston, KY

Average humidity - Charleston, KY

The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (71%).

Average rainfall
Charleston, KY

Average rainfall - Charleston, KY

The wettest month (with the highest rainfall) is April (1.34").
The driest month (with the least rainfall) is September (0.47").

Average rainfall days
Charleston, KY

Average rainfall days - Charleston, KY

The month with the highest number of rainy days is May (13.4 days).
The month with the least rainy days is January (6.9 days).

Average snowfall
Charleston, KY

Average snowfall - Charleston, KY

The month with the highest snowfall is February (0.31").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days
Charleston, KY

Average snowfall days - Charleston, KY

The month with the highest number of snowfall days is January (2.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight / Average sunshine
Charleston, KY

Average daylight / Average sunshine - Charleston, KY

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).

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

Average sunshine days
Charleston, KY

Average sunshine days - Charleston, KY

The month with the most sunshine days is October (21.7 days).
The month with the least sunshine days is May (14.1 days).

Average UV index
Charleston, KY

Average UV index - Charleston, KY

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

Average visibility
Charleston, KY

Average visibility - Charleston, KY

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).

Charleston, Kentucky, USA

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