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
With October's onset, the weather shows a temperature decrease, transitioning from a warm 77°F (25°C) in September to an enjoyable 63.9°F (17.7°C). In Illiopolis, the average temperature during the nights of October drops to a frosty 47.8°F (8.8°C).Humidity
With an average relative humidity of 70%, October is the least humid month.Rainfall
In Illiopolis, Illinois, in October, it is raining for 10.6 days, with typically 2.01" (51mm) of accumulated precipitation. In Illiopolis, during the entire year, the rain falls for 141.8 days and collects up to 22.24" (565mm) of precipitation.Snowfall
In Illiopolis, Illinois, snow does not fall in May through October.Daylight
The average length of the day in October is 11h and 8min.On the first day of October, sunrise is at 6:53 am and sunset at 6:38 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 5:55 pm CDT.
Sunshine
The average sunshine in October is 5.9h.UV index
The average daily maximum UV index in October in Illiopolis is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: The UV index of 3 during October leads to these advisories:
Exercise prevention - Protecting skin and eyes from harm is required. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Frequently asked questions
What is the average October temperature in Illiopolis?
What is the least humid month in Illiopolis?
What is the average humidity in October in Illiopolis?
How many days does it rain in October in Illiopolis?
When it does not snow in Illiopolis?
Does it snow in Illiopolis in October?
What is the average length of the day in October in Illiopolis?
When is the sunrise / sunset in October in Illiopolis?
How many hours of sunshine does Illiopolis have in October?
What is the UV index intensity in October in Illiopolis?
Average temperature in October
Illiopolis, 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 (32.5°F).
- Average low temperature in October: 47.8°F
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure in October
Illiopolis, IL
- Average pressure in October: 30.02"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in October
Illiopolis, IL
- Average wind speed in October: 9.1mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).
Average humidity in October
Illiopolis, IL
- Average humidity in October: 70%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (70%).
Average rainfall in October
Illiopolis, IL
- Average rainfall in October: 2.01"
The wettest month (with the highest rainfall) is May (2.68").
The driest month (with the least rainfall) is December (1.1").
Average rainfall days in October
Illiopolis, IL
- Average rainfall days in October: 10.6 days
The month with the highest number of rainy days is May (17 days).
The months with the least rainy days are January and February (6.3 days).
Average snowfall in October
Illiopolis, IL
- Average snowfall in October: 0"
The month with the highest snowfall is January (2.24").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in October
Illiopolis, IL
- Average snowfall days in October: 0.3 days
The month with the highest number of snowfall days is January (9.4 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in October /
Average sunshine in October
Illiopolis, IL
- Average daylight in October: 11h and 1min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in October: 5h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in October
Illiopolis, IL
- Average sunshine days in October: 18.1 days
The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is May (10.8 days).
Average UV index in October
Illiopolis, 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 January (UV index 1).
Average cloud cover in October
Illiopolis, IL
- Average cloud cover in October: 36
The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are June and September (Cloud cover 31).
Average visibility in October
Illiopolis, 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).
Illiopolis, Illinois, USA
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