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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
Weather in January
January, the same as December, is an icy winter month in Charleston, Missouri, with an average temperature fluctuating between 41.5°F (5.3°C) and 28.8°F (-1.8°C). With average high temperatures of 41.5°F (5.3°C) and lows of 28.8°F (-1.8°C), January is the coldest month. Weather in January »
Weather in February
The last month of the winter, February, is a frosty month in Charleston, Missouri, with an average temperature ranging between min 32.5°F (0.3°C) and max 46.2°F (7.9°C). The transition from January to February sees average high-temperatures adjusting to a frosty 46.2°F (7.9°C), from a not significantly different 41.5°F (5.3°C). Weather in February »
Weather in March
The first month of the spring, March, is a refreshing month in Charleston, Missouri, with an average temperature varying between 41.2°F (5.1°C) and 57°F (13.9°C). The start of March signals an increase in the average high-temperature, moving from a chilly 46.2°F (7.9°C) in February to a moderate 57°F (13.9°C). Weather in March »
Weather in April
April is an enjoyable spring month in Charleston, Missouri, with temperature in the range of an average high of 67.8°F (19.9°C) and an average low of 50.5°F (10.3°C). Charleston's transition into April is marked by a temperature shift, moving from a refreshing 57°F (13.9°C) in March to a comfortable 67.8°F (19.9°C). Weather in April »
Weather in May
May, the last month of the spring in Charleston, is a moderately hot month, with temperature in the range of an average high of 76.6°F (24.8°C) and an average low of 60.3°F (15.7°C). A subtle rise in the average high-temperature is observed during May, adjusting from a refreshing 67.8°F (19.9°C) in April to a warm 76.6°F (24.8°C). Weather in May »
Weather in June
June, the first month of the summer in Charleston, is a hot month, with an average temperature fluctuating between 86°F (30°C) and 68.4°F (20.2°C). The start of June is characterized by an increase in the average high-temperature, transitioning from a warm 76.6°F (24.8°C) in May to a tropical 86°F (30°C). Weather in June »
Weather in July
July, the same as June, in Charleston, Missouri, is another hot summer month, with an average temperature ranging between min 70.2°F (21.2°C) and max 88.2°F (31.2°C). July is the warmest month, with the temperature often reaching an average high of 88.2°F (31.2°C) and an average low of 70.2°F (21.2°C). July's average heat index is computed to be a blisteringly hot 104°F (40°C). Weather in July »
Weather in August
The last month of the summer, August, is another tropical month in Charleston, Missouri, with temperature in the range of an average high of 86.4°F (30.2°C) and an average low of 67.6°F (19.8°C). The introduction of August sees an average high-temperature of a still hot 86.4°F (30.2°C), hardly deviating from July. 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 fluctuating between 62.2°F (16.8°C) and 81.7°F (27.6°C). The arrival of September coincides with an average high-temperature of a moderately hot 81.7°F (27.6°C), indicating a minimal shift from August's 86.4°F (30.2°C). Weather in September »
Weather in October
October, like September, is an agreeable autumn month in Charleston, Missouri, with an average temperature ranging between max 69.4°F (20.8°C) and min 51.4°F (10.8°C). The average high-temperature drops in October, from September's warm 81.7°F (27.6°C) to an agreeable 69.4°F (20.8°C). Weather in October »
Weather in November
The last month of the autumn, November, is another refreshing month in Charleston, Missouri, with an average temperature ranging between min 40.8°F (4.9°C) and max 55.6°F (13.1°C). With November's arrival, Charleston sees a decrease in average high-temperatures, moving from a pleasant 69.4°F (20.8°C) in October to a moderate 55.6°F (13.1°C). Weather in November »
Weather in December
December, the first month of the winter in Charleston, is still a chilly month, with an average temperature fluctuating between 46.2°F (7.9°C) and 34°F (1.1°C). In Charleston, entering December brings a temperature decrement, reducing from November's moderate 55.6°F (13.1°C) to a frosty 46.2°F (7.9°C). Weather in December »
[Resources]Frequently asked questions
What is the coldest time of year in Charleston?
Charleston's January weather, with an average high temperature of 41.5°F (5.3°C) and an average low temperature of 28.8°F (-1.8°C), tends to be the coldest of the year.
How much does it rain in Charleston?
Throughout the year, in Charleston, there are 153 rainfall days, and 33.9" (861mm) of precipitation is accumulated.
When does it snow in Charleston?
Months with snowfall are January through April, November and December.
How many days does it snow in Charleston?
Throughout the year, in Charleston, Missouri, there are 11.2 snowfall days, and 4.69" (119mm) of snow is accumulated.
What is the month with the lowest UV index in Charleston?
January and December, with an average maximum UV index of 2, are months with the lowest UV index in Charleston, Missouri.
What is the snowiest month in Charleston?
February is the month with the most snowfall in Charleston, Missouri. Snow falls for 3.6 days and accumulates 1.69" (43mm) of snow.
What is the month with the least sunshine in Charleston?
With an average of 4.7h of sunshine, February has the least sunshine of the year.
What are the most humid months in Charleston?
March and May, with an average relative humidity of 78%, are most humid months in Charleston.
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 wettest month in Charleston?
April is the month with the most rainfall in Charleston, Missouri. Rain falls for 14.7 days and accumulates 3.9" (99mm) of precipitation.
When it does not snow in Charleston?
May through October are months without snowfall in Charleston, Missouri.
When is the highest UV index in Charleston?
The months with the highest UV index in Charleston are May through August, with an average maximum UV index of 6.
When are the longest days in Charleston?
The month with the longest days in Charleston, Missouri, is June, with an average of 14h and 42min of daylight.
What is the month with the most sunshine in Charleston?
The months with the most sunshine in Charleston, Missouri, are June and July, with an average of 10.7h of sunshine.
What time of the year is the hottest in Charleston?
July is the month when Charleston's temperatures reach their peak, with averages of 88.2°F (31.2°C) and lows of 70.2°F (21.2°C).
What is the driest month in Charleston?
September is the month with the least rainfall. Rain falls for 11.4 days and accumulates 1.22" (31mm) of precipitation.
What is the least humid month in Charleston?
October is the least humid month, with an average relative humidity of 69%.
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.
Average temperature
Charleston, MO
The warmest month (with the highest average high temperature) is July (88.2°F).
The month with the lowest average high temperature is January (41.5°F).
The month with the highest average low temperature is July (70.2°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).
Average pressure
Charleston, MO
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
29.97"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.98"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.02"Hg - Average pressure in October:
30.05"Hg - Average pressure in November:
30.14"Hg - Average pressure in December:
30.14"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed
Charleston, MO
- Average wind speed in January:
9.3mph - Average wind speed in February:
9.3mph - Average wind speed in March:
9.3mph - Average wind speed in April:
9.2mph - Average wind speed in May:
7.8mph - Average wind speed in June:
6.5mph
- Average wind speed in July:
5.8mph - Average wind speed in August:
5.7mph - Average wind speed in September:
6.4mph - Average wind speed in October:
7.8mph - Average wind speed in November:
8.5mph - Average wind speed in December:
8.6mph
The windiest months (with the highest average wind speed) are January, February and March (9.3mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity
Charleston, MO
The months with the highest relative humidity are March and May (78%).
The month with the lowest relative humidity is October (69%).
Average rainfall
Charleston, MO
- Average rainfall in January:
2.05" - Average rainfall in February:
3.31" - Average rainfall in March:
3.74" - Average rainfall in April:
3.9" - Average rainfall in May:
3.7" - Average rainfall in June:
2.91"
- Average rainfall in July:
2.68" - Average rainfall in August:
2.68" - Average rainfall in September:
1.22" - Average rainfall in October:
2.36" - Average rainfall in November:
2.76" - Average rainfall in December:
2.6"
The wettest month (with the highest rainfall) is April (3.9").
The driest month (with the least rainfall) is September (1.22").
Average rainfall days
Charleston, MO
- Average rainfall days in January:
9.4 days - Average rainfall days in February:
10.8 days - Average rainfall days in March:
14.9 days - Average rainfall days in April:
14.7 days - Average rainfall days in May:
16.4 days - Average rainfall days in June:
14.8 days
- Average rainfall days in July:
16.2 days - Average rainfall days in August:
13.7 days - Average rainfall days in September:
11.4 days - Average rainfall days in October:
10.4 days - Average rainfall days in November:
10.2 days - Average rainfall days in December:
10.1 days
The month with the highest number of rainy days is May (16.4 days).
The month with the least rainy days is January (9.4 days).
Average snowfall
Charleston, MO
The month with the highest snowfall is February (1.69").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Charleston, MO
- Average snowfall days in January:
3.2 days - Average snowfall days in February:
3.6 days - Average snowfall days in March:
1.7 days - Average snowfall days in April:
0.3 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 days - Average snowfall days in November:
0.9 days - Average snowfall days in December:
1.5 days
The month with the highest number of snowfall days is February (3.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Charleston, MO
- Average daylight in January:
10h and 0min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 1min - Average daylight in June:
14h and 4min
- Average daylight in July:
14h and 2min - Average daylight in August:
13h and 3min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 1min - Average daylight in December:
9h and 4min
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).
- 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:
8h and 5min - Average sunshine in May:
9h and 2min - Average sunshine in June:
10h and 4min
- Average sunshine in July:
10h and 4min - Average sunshine in August:
10h and 3min - Average sunshine in September:
9h and 4min - Average sunshine in October:
6h and 4min - Average sunshine in November:
5h and 4min - Average sunshine in December:
5h and 0min
The months with the most sunshine are June and July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days
Charleston, MO
- Average sunshine days in January:
18.2 days - Average sunshine days in February:
13.5 days - Average sunshine days in March:
12.8 days - Average sunshine days in April:
12.8 days - Average sunshine days in May:
12.1 days - Average sunshine days in June:
12.9 days
- Average sunshine days in July:
12.8 days - Average sunshine days in August:
15.1 days - Average sunshine days in September:
17.1 days - Average sunshine days in October:
19.5 days - Average sunshine days in November:
18.5 days - Average sunshine days in December:
18.5 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is May (12.1 days).
Average UV index
Charleston, MO
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 and December (UV index 2).
Average cloud cover
Charleston, MO
The months with the most cloud cover are February and March (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 25).
Average visibility
Charleston, MO
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, Missouri, USA
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