October weather forecastSummit, IL
October
Weather in October
October, the same as September, in Summit, Illinois, is a moderate autumn month, with an average temperature varying between 60.1°F (15.6°C) and 47.8°F (8.8°C).Temperature
Summit's average high-temperature decreases in October, falling from an agreeable 72.9°F (22.7°C) in September to a refreshing 60.1°F (15.6°C). During October nights, Summit records an average temperature of 47.8°F (8.8°C).Humidity
With an average relative humidity of 72%, October is the least humid month.Rainfall
In Summit, in October, it is raining for 9.4 days, with typically 0.83" (21mm) of accumulated precipitation. Throughout the year, in Summit, there are 110.8 rainfall days, and 9.61" (244mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. October is the first month it typically snows in Summit. Throughout October, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. In Summit, during the entire year, snow falls for 32.3 days and aggregates up to 4.09" (104mm) of snow.Daylight
In Summit, Illinois, the average length of the day in October is 11h and 4min.On the first day of October, sunrise is at 6:48 am and sunset at 6:32 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 5:46 pm CDT.
Sunshine
In October, the average sunshine in Summit is 5.9h.UV index
In October, the average daily maximum UV index in Summit is 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for average individuals.Note: In October, the average maximum UV index of 2 translates into the following recommendations:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Summit, IL
- Average high temperature in October: 60.1°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (29.5°F).
- Average low temperature in October: 47.8°F
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (19.2°F).
Average pressure in October
Summit, IL
- Average pressure in October: 30.01"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in October
Summit, IL
- Average wind speed in October: 9.8mph
The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest month (with the lowest average wind speed) is August (6.7mph).
Average humidity in October
Summit, IL
- Average humidity in October: 72%
The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (72%).
Average rainfall in October
Summit, IL
- Average rainfall in October: 0.83"
The wettest month (with the highest rainfall) is May (1.38").
The driest month (with the least rainfall) is December (0.43").
Average rainfall days in October
Summit, IL
- Average rainfall days in October: 9.4 days
The month with the highest number of rainy days is July (13.3 days).
The month with the least rainy days is February (4.1 days).
Average snowfall in October
Summit, IL
- Average snowfall in October: 0.04"
The month with the highest snowfall is February (1.38").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in October
Summit, IL
- Average snowfall days in October: 0.1 days
The month with the highest number of snowfall days is January (10.1 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
Summit, IL
- Average daylight in October: 11h and 6min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in October: 5h and 54min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in October
Summit, IL
- Average sunshine days in October: 18.7 days
The month with the most sunshine days is November (21.3 days).
The month with the least sunshine days is June (12.3 days).
Average UV index in October
Summit, IL
- Average UV index in October: 2
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
Summit, IL
- Average cloud cover in October: 41
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in October
Summit, IL
- Average visibility in October: 6mi
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).
