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
October in DeKalb suggests a modest reduction in the average high-temperature, shifting from a pleasant 73°F (22.8°C) in September to a moderate 59.9°F (15.5°C). An average low-temperature of 44.1°F (6.7°C) is observed during October nights.Humidity
April and October, with an average relative humidity of 75%, are the least humid months in DeKalb.Rainfall
In DeKalb, in October, during 13.1 rainfall days, 2.68" (68mm) of precipitation is typically accumulated. Throughout the year, in DeKalb, there are 152.6 rainfall days, and 32.09" (815mm) of precipitation is accumulated.Snowfall
Months with snowfall in DeKalb are January through May, October through December. October is the first month it typically snows. Throughout October, in the average 0.8 snowfall days, it receives 0.2" (5mm) of snow. Throughout the year, there are 44.3 snowfall days, and 17.87" (454mm) of snow is accumulated.Daylight
In October, the average length of the day in DeKalb is 11h and 4min.On the first day of October, sunrise is at 6:52 am and sunset at 6:36 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 5:49 pm CDT.
Sunshine
In October, the average sunshine in DeKalb is 5.4h.UV index
In DeKalb, the average daily maximum UV index in October is 2. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: In October, a daily maximum UV index of 2 leads to the following instructions:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Frequently asked questions
What is the temperature in October in DeKalb?
What is the least humid month in DeKalb?
What is the average humidity in October in DeKalb?
How many days does it rain in October in DeKalb?
When does it start to snow in DeKalb?
How many hours of daylight does DeKalb have in October?
When are sunrise and sunset in October in DeKalb?
How long on average sun shines in October in DeKalb?
How high is the UV index in October in DeKalb?
Average temperature in October
DeKalb, IL
- Average high temperature in October: 59.9°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (27°F).
- Average low temperature in October: 44.1°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (15.1°F).
Average pressure in October
DeKalb, IL
- Average pressure in October: 30"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
DeKalb, IL
- Average wind speed in October: 8.9mph
The windiest month (with the highest average wind speed) is April (10mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in October
DeKalb, IL
- Average humidity in October: 75%
The months with the highest relative humidity are January and July (85%).
The months with the lowest relative humidity are April and October (75%).
Average rainfall in October
DeKalb, IL
- Average rainfall in October: 2.68"
The wettest month (with the highest rainfall) is May (4.37").
The driest month (with the least rainfall) is February (1.65").
Average rainfall days in October
DeKalb, IL
- Average rainfall days in October: 13.1 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (4.7 days).
Average snowfall in October
DeKalb, IL
- Average snowfall in October: 0.2"
The month with the highest snowfall is January (5.55").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in October
DeKalb, IL
- Average snowfall days in October: 0.8 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
DeKalb, 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 2min
The month with the most sunshine is July (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in October
DeKalb, IL
- Average sunshine days in October: 15.4 days
The month with the most sunshine days is November (17.2 days).
The months with the least sunshine days are June and July (10.3 days).
Average UV index in October
DeKalb, IL
- Average UV index in October: 2
The months with the highest UV index are June and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in October
DeKalb, IL
- Average cloud cover in October: 43
The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are August and September (Cloud cover 35).
Average visibility in October
DeKalb, IL
- Average visibility in October: 6mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).
DeKalb, Illinois, USA
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