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
October brings a decrease in the average high-temperature, shifting from a warm 77°F (25°C) in September to a comfortable 63.9°F (17.7°C). Throughout the October nights, Chestnut encounters a low-temperature of 47.8°F (8.8°C).Humidity
October is the least humid month, with an average relative humidity of 70%.Rainfall
In Chestnut, Illinois, during October, the rain falls for 10.6 days and regularly aggregates up to 2.01" (51mm) of precipitation. Throughout the year, in Chestnut, there are 141.8 rainfall days, and 22.24" (565mm) of precipitation is accumulated.Snowfall
In Chestnut, 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 in Chestnut, 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
In October, the average sunshine in Chestnut, Illinois, is 5.9h.UV index
In Chestnut, the average daily maximum UV index in October is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 3 in October translates into these instructions:
Undertake precautions - Obligation exists to protect against skin and eye damage. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are October temperatures in Chestnut?
What is the least humid month in Chestnut?
What is the average humidity in October in Chestnut?
How many days does it rain in October in Chestnut?
When it does not snow in Chestnut?
Does it snow in Chestnut in October?
How many hours of daylight does Chestnut have in October?
What time are sunrise and sunset in October in Chestnut?
How many hours of sunshine does Chestnut have in October?
What is the UV index intensity in October in Chestnut?
Average temperature in October
Chestnut, 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
Chestnut, 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
Chestnut, 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
Chestnut, 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
Chestnut, 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
Chestnut, 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
Chestnut, 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
Chestnut, 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
Chestnut, 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
Chestnut, 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
Chestnut, 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
Chestnut, 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
Chestnut, 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).
Chestnut, Illinois, USA
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