October weather forecastVandalia, IL
October
Weather in October
October, like September, in Vandalia, Illinois, is another refreshing autumn month, with an average temperature varying between 48.6°F (9.2°C) and 65.1°F (18.4°C).Temperature
The onset of October comes with a shift in the average high-temperature, falling from a moderately hot 77.9°F (25.5°C) in September to a refreshing 65.1°F (18.4°C). The low-temperature averages to a chilly 48.6°F (9.2°C) during the nights of October.Humidity
October is the least humid month in Vandalia, Illinois, with an average relative humidity of 71%.Rainfall
In Vandalia, Illinois, in October, during 11.6 rainfall days, 3.11" (79mm) of precipitation is typically accumulated. In Vandalia, during the entire year, the rain falls for 164.1 days and collects up to 36.73" (933mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
The average length of the day in October in Vandalia is 11h and 10min.On the first day of the month, sunrise is at 6:53 am and sunset at 6:38 pm. On the last day of October, in Vandalia, sunrise is at 7:23 am and sunset at 5:56 pm CDT.
Sunshine
In October, the average sunshine is 6.3h.UV index
The average daily maximum UV index in October in Vandalia is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 3 in October interprets into the following recommendations:
Exercise care. People with light skin might get burns in fewer than 30 minutes. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Vandalia, IL
- Average high temperature in October: 65.1°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°F).
- Average low temperature in October: 48.6°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 (23.4°F).
Average pressure in October
Vandalia, IL
- Average pressure in October: 30.03"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
Vandalia, IL
- Average wind speed in October: 8.6mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in October
Vandalia, IL
- Average humidity in October: 71%
The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in October
Vandalia, IL
- Average rainfall in October: 3.11"
The wettest month (with the highest rainfall) is June (4.57").
The driest month (with the least rainfall) is February (2.01").
Average rainfall days in October
Vandalia, IL
- Average rainfall days in October: 11.6 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (9.2 days).
Average snowfall in October
Vandalia, IL
- Average snowfall in October: 0"
The month with the highest snowfall is December (2.4").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in October
Vandalia, IL
- Average snowfall days in October: 0.2 days
The month with the highest number of snowfall days is January (8.3 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
Vandalia, IL
- Average daylight in October: 11h and 12min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in October: 6h and 18min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in October
Vandalia, IL
- Average sunshine days in October: 17.2 days
The month with the most sunshine days is October (17.2 days).
The month with the least sunshine days is July (8.6 days).
Average UV index in October
Vandalia, 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
Vandalia, IL
- Average cloud cover in October: 34
The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are June, July and September (Cloud cover 30).
Average visibility in October
Vandalia, 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).
