Contents
- Weather in October
- Frequently asked questions
- Average temperature in October
- Average pressure in October
- Average wind speed in October
- Average humidity in October
- Average rainfall in October
- Average rainfall days in October
- Average snowfall in October
- Average snowfall days in October
- Average daylight in October
- Average sunshine in October
- Average sunshine days in October
- Average UV index in October
- Average cloud cover in October
- Average visibility in October
Weather in October
Temperature
Charleston in October undergoes a mild reduction in the average high-temperature, shifting from September's warm 77.2°F (25.1°C) to a comfortable 63.9°F (17.7°C). An average low-temperature of 48.2°F (9°C) is expected in Charleston during October.Humidity
The least humid month is October, with an average relative humidity of 70%.Rainfall
In Charleston, in October, it is raining for 11.1 days, with typically 2.13" (54mm) of accumulated precipitation. In Charleston, during the entire year, the rain falls for 148 days and collects up to 25.63" (651mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. October is the first month it typically snows. Throughout October, in the average 0.1 snowfall days, it receives 0.08" (2mm) of snow. Throughout the year, there are 26.6 snowfall days, and 7.01" (178mm) of snow is accumulated.Daylight
In October, the average length of the day is 11h and 9min.On the first day of the month, sunrise is at 6:49 am and sunset at 6:34 pm. On the last day of October, in Charleston, sunrise is at 7:20 am and sunset at 5:51 pm CDT.
Sunshine
In Charleston, the average sunshine in October is 6.3h.UV index
In October, the average daily maximum UV index in Charleston is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: The daily high UV index of 3 in October translates into this advice:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Frequently asked questions
What is the average October temperature in Charleston?
What is the least humid month in Charleston?
What is the average humidity in October in Charleston?
How much does it rain in Charleston in October?
When does it start snowing in Charleston?
What is the average length of the day in October in Charleston?
When is the sunrise / sunset in October in Charleston?
How long on average sun shines in October in Charleston?
What is the UV index intensity in October in Charleston?
Average temperature in October
Charleston, IL
- Average high temperature in October: 63.9°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (34°F).
- Average low temperature in October: 48.2°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (21.9°F).
Average pressure in October
Charleston, IL
- Average pressure in October: 30.03"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in October
Charleston, IL
- Average wind speed in October: 9.2mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is July (6.2mph).
Average humidity in October
Charleston, IL
- Average humidity in October: 70%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (70%).
Average rainfall in October
Charleston, IL
- Average rainfall in October: 2.13"
The wettest month (with the highest rainfall) is April (3.31").
The driest month (with the least rainfall) is February (1.3").
Average rainfall days in October
Charleston, IL
- Average rainfall days in October: 11.1 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (7.8 days).
Average snowfall in October
Charleston, IL
- Average snowfall in October: 0.08"
The month with the highest snowfall is December (2.13").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in October
Charleston, IL
- Average snowfall days in October: 0.1 days
The month with the highest number of snowfall days is January (8.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Charleston, IL
- Average daylight in October: 11h and 1min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in October: 6h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in October
Charleston, IL
- Average sunshine days in October: 18.3 days
The month with the most sunshine days is October (18.3 days).
The month with the least sunshine days is July (10.6 days).
Average UV index in October
Charleston, IL
- Average UV index in October: 3
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in October
Charleston, IL
- Average cloud cover in October: 36
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is June (Cloud cover 31).
Average visibility in October
Charleston, IL
- Average visibility in October: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Charleston, Illinois, USA
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