October weather forecastSumner, IL
October
Weather in October
October, like September, in Sumner, Illinois, is another enjoyable autumn month, with an average temperature ranging between min 49.3°F (9.6°C) and max 66°F (18.9°C).Temperature
Welcoming October, Sumner observes a shift in the average high-temperature, falling from September's moderately hot 78.3°F (25.7°C) to an enjoyable 66°F (18.9°C). Sumner experiences a consistent average temperature of 49.3°F (9.6°C) throughout the nights in October.Humidity
The least humid month in Sumner, Illinois, is October, with an average relative humidity of 70%.Rainfall
In Sumner, in October, it is raining for 11.3 days, with typically 2.44" (62mm) of accumulated precipitation. Throughout the year, there are 160.3 rainfall days, and 34.33" (872mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
The average length of the day in October is 11h and 10min.On the first day of October in Sumner, Illinois, sunrise is at 6:48 am and sunset at 6:33 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 5:52 pm CDT.
Sunshine
In Sumner, the average sunshine in October is 6.8h.UV index
In Sumner, the average daily maximum UV index in October is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: An average UV index of 3 in October transforms into this advice:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Sumner, IL
- Average high temperature in October: 66°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (36.7°F).
- Average low temperature in October: 49.3°F
The month with the highest average low temperature is July (67.3°F).
The coldest month (with the lowest average low temperature) is January (24.4°F).
Average pressure in October
Sumner, IL
- Average pressure in October: 30.04"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 in October
Sumner, IL
- Average wind speed in October: 8.6mph
The windiest month (with the highest average wind speed) is February (10.1mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).
Average humidity in October
Sumner, IL
- Average humidity in October: 70%
The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is October (70%).
Average rainfall in October
Sumner, IL
- Average rainfall in October: 2.44"
The wettest month (with the highest rainfall) is April (4.69").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in October
Sumner, IL
- Average rainfall days in October: 11.3 days
The month with the highest number of rainy days is May (19.6 days).
The month with the least rainy days is February (9.4 days).
Average snowfall in October
Sumner, IL
- Average snowfall in October: 0"
The month with the highest snowfall is January (1.69").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in October
Sumner, IL
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in October /
Average sunshine in October
Sumner, IL
- Average daylight in October: 11h and 12min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in October: 6h and 48min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in October
Sumner, IL
- Average sunshine days in October: 18 days
The month with the most sunshine days is October (18 days).
The month with the least sunshine days is May (9.4 days).
Average UV index in October
Sumner, IL
- Average UV index in October: 3
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in October
Sumner, IL
- Average cloud cover in October: 33
The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in October
Sumner, 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).
