October weather forecastWheaton, IL
October
Weather in October
October in Wheaton is characterized by cooling temperatures, colorful fall foliage, and diminishing rainfall. October experiences the highest wind speed, with an average wind speed of 8.7mph (14km/h). Leaves changing colors and falling, combined with the crisp weather, do create a classic fall ambiance. Sunshine duration decreases as winter's shadows slowly start to creep in. Wrap up warmly for late evening walks as nighttime temperatures begin to reach towards freezing.Temperature
Stepping into October, Wheaton observes a temperature decline, with the average high falling from September's moderately hot 73.6°F (23.1°C) to a refreshing 60.4°F (15.8°C). During October, the average low-temperature is a chilly 45.5°F (7.5°C).Humidity
October is the least humid month, with an average relative humidity of 73%.Rainfall
In Wheaton, during October, the rain falls for 13.9 days and regularly aggregates up to 2.83" (72mm) of precipitation. In Wheaton, Illinois, during the entire year, the rain falls for 164.3 days and collects up to 33.78" (858mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. October is the first month it typically snows. Throughout October, in the average 0.5 snowfall days, it receives 0.35" (9mm) of snow. In Wheaton, during the entire year, snow falls for 47 days and aggregates up to 20.2" (513mm) of snow.Daylight
In Wheaton, the average length of the day in October is 11h and 4min.On the first day of the month, sunrise is at 6:50 am and sunset at 6:33 pm. On the last day of October, sunrise is at 7:24 am and sunset at 5:47 pm CDT.
Sunshine
In October, the average sunshine is 5.6h.UV index
In Wheaton, the average daily maximum UV index in October is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily high UV index of 2 during October translates into the following recommendations:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Wheaton, IL
- Average high temperature in October: 60.4°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (28°F).
- Average low temperature in October: 45.5°F
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).
Average pressure in October
Wheaton, 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
Wheaton, IL
- Average wind speed in October: 8.7mph
The windiest month (with the highest average wind speed) is January (9.8mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in October
Wheaton, IL
- Average humidity in October: 73%
The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is October (73%).
Average rainfall in October
Wheaton, IL
- Average rainfall in October: 2.83"
The wettest month (with the highest rainfall) is May (4.45").
The driest months (with the least rainfall) are November and December (1.65").
Average rainfall days in October
Wheaton, IL
- Average rainfall days in October: 13.9 days
The month with the highest number of rainy days is July (20.1 days).
The month with the least rainy days is February (5.8 days).
Average snowfall in October
Wheaton, IL
- Average snowfall in October: 0.35"
The month with the highest snowfall is January (5.87").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in October
Wheaton, IL
- Average snowfall days in October: 0.5 days
The month with the highest number of snowfall days is January (13.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Wheaton, 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 36min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in October
Wheaton, IL
- Average sunshine days in October: 13.8 days
The month with the most sunshine days is November (16.1 days).
The month with the least sunshine days is July (8.2 days).
Average UV index in October
Wheaton, 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 January (UV index 1).
Average cloud cover in October
Wheaton, IL
- Average cloud cover in October: 42
The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are August and September (Cloud cover 32).
Average visibility in October
Wheaton, IL
- Average visibility in October: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
