Contents
- Weather in October
- Frequently asked questions
- Average temperature in October
- Average pressure in October
- Average wind speed in October
- Average humidity in October
- Average rainfall in October
- Average rainfall days in October
- Average snowfall in October
- Average snowfall days in October
- Average daylight in October
- Average sunshine in October
- Average sunshine days in October
- Average UV index in October
- Average cloud cover in October
- Average visibility in October
Weather in October
Temperature
Oak Brook's October weather shows a moderate shift in high-temperatures, falling from September's warm 74.3°F (23.5°C) to a refreshing 60.6°F (15.9°C). In October, the nighttime temperature lowers to an average of 45.7°F (7.6°C).Humidity
The least humid month is October, with an average relative humidity of 72%.Rainfall
In Oak Brook, Illinois, in October, during 9.8 rainfall days, 1.22" (31mm) of precipitation is typically accumulated. In Oak Brook, during the entire year, the rain falls for 118.5 days and collects up to 13.74" (349mm) of precipitation.Snowfall
Months with snowfall in Oak Brook are January through April, October through December. October is the first month it typically snows. Throughout October, in the average 0.4 snowfall days, it receives 0.2" (5mm) of snow. In Oak Brook, during the entire year, snow falls for 34.9 days and aggregates up to 7.2" (183mm) of snow.Daylight
In October, the average length of the day in Oak Brook is 11h and 4min.On the first day of October in Oak Brook, Illinois, sunrise is at 6:49 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
The average sunshine in October in Oak Brook is 5.6h.UV index
The average daily maximum UV index in October is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: A maximum UV index of 3 in October translates into the following recommendations:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Frequently asked questions
What is the usual temperature for Oak Brook in October?
What is the least humid month in Oak Brook?
What is the average humidity in October in Oak Brook?
How much does it rain in Oak Brook in October?
When does it start snowing in Oak Brook?
What is the average length of the day in October in Oak Brook?
What time are sunrise and sunset in October in Oak Brook?
How long on average sun shines in October in Oak Brook?
What is the UV index intensity in October in Oak Brook?
Average temperature in October
Oak Brook, IL
- Average high temperature in October: 60.6°F
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (28.8°F).
- Average low temperature in October: 45.7°F
The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure in October
Oak Brook, 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
Oak Brook, IL
- Average wind speed in October: 8.6mph
The windiest month (with the highest average wind speed) is January (9.7mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).
Average humidity in October
Oak Brook, 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
Oak Brook, IL
- Average rainfall in October: 1.22"
The wettest month (with the highest rainfall) is May (1.97").
The driest month (with the least rainfall) is December (0.63").
Average rainfall days in October
Oak Brook, IL
- Average rainfall days in October: 9.8 days
The month with the highest number of rainy days is May (14.9 days).
The month with the least rainy days is February (4.2 days).
Average snowfall in October
Oak Brook, IL
- Average snowfall in October: 0.2"
The month with the highest snowfall is February (2.28").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in October
Oak Brook, IL
- Average snowfall days in October: 0.4 days
The month with the highest number of snowfall days is January (9.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Oak Brook, IL
- Average daylight in October: 11h and 1min
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 4min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in October
Oak Brook, IL
- Average sunshine days in October: 19.6 days
The month with the most sunshine days is December (20.7 days).
The month with the least sunshine days is July (11.8 days).
Average UV index in October
Oak Brook, IL
- Average UV index in October: 3
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
Oak Brook, IL
- Average cloud cover in October: 42
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in October
Oak Brook, 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).
Oak Brook, Illinois, USA
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