October weather forecastVergennes, IL
October
Weather in October
October, like September, in Vergennes, Illinois, is another enjoyable autumn month, with an average temperature fluctuating between 49.3°F (9.6°C) and 67.1°F (19.5°C).Temperature
October shows a mild decline in the average high-temperature, falling from September's moderately hot 79.7°F (26.5°C) to a refreshing 67.1°F (19.5°C). In the month of October, Vergennes records a consistent average low-temperature of 49.3°F (9.6°C).Humidity
The least humid month is October, with an average relative humidity of 71%.Rainfall
In October, the rain falls for 9.9 days. Throughout October, 2.36" (60mm) of precipitation is accumulated. In Vergennes, during the entire year, the rain falls for 147.6 days and collects up to 29.17" (741mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
The average length of the day in October is 11h and 12min.On the first day of the month, sunrise is at 6:53 am and sunset at 6:39 pm. On the last day of October, sunrise is at 7:22 am and sunset at 5:59 pm CDT.
Sunshine
In October, the average sunshine is 6.4h.UV index
In Vergennes, the average daily maximum UV index in October is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: A maximum high daily UV index of 3 during October translates into the following directions:
Act with care - The suggestion to avoid sunburn is emphasized. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Vergennes, IL
- Average high temperature in October: 67.1°F
The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in October: 49.3°F
The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).
Average pressure in October
Vergennes, 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 (29.93"Hg).
Average wind speed in October
Vergennes, IL
- Average wind speed in October: 8mph
The windiest months (with the highest average wind speed) are January and February (9.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in October
Vergennes, IL
- Average humidity in October: 71%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall in October
Vergennes, IL
- Average rainfall in October: 2.36"
The wettest month (with the highest rainfall) is April (3.58").
The driest month (with the least rainfall) is January (1.5").
Average rainfall days in October
Vergennes, IL
- Average rainfall days in October: 9.9 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is December (8.2 days).
Average snowfall in October
Vergennes, IL
- Average snowfall in October: 0"
The month with the highest snowfall is February (1.5").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in October
Vergennes, IL
- Average snowfall days in October: 0.1 days
The month with the highest number of snowfall days is January (5.4 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
Vergennes, 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 36min).
- Average sunshine in October: 6h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in October
Vergennes, IL
- Average sunshine days in October: 19.5 days
The months with the most sunshine days are October and November (19.5 days).
The month with the least sunshine days is May (11.4 days).
Average UV index in October
Vergennes, 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
Vergennes, IL
- Average cloud cover in October: 33
The months with the most cloud cover are January and February (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility in October
Vergennes, 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).





