October weather forecastKarnak, IL
October
Weather in October
October, the same as September, is another enjoyable autumn month in Karnak, Illinois, with an average temperature ranging between max 67.8°F (19.9°C) and min 49.6°F (9.8°C).Temperature
Karnak's average high-temperature decreases in October, falling from a warm 81.1°F (27.3°C) in September to a refreshing 67.8°F (19.9°C). The mean low-temperature during October nights is a frosty 49.6°F (9.8°C).Humidity
The least humid month is October, with an average relative humidity of 71%.Rainfall
In Karnak, during October, the rain falls for 7.5 days and regularly aggregates up to 0.98" (25mm) of precipitation. Throughout the year, there are 118.3 rainfall days, and 13.03" (331mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
In October, the average length of the day is 11h and 13min.On the first day of October, sunrise is at 6:51 am and sunset at 6:38 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 5:58 pm CDT.
Sunshine
In Karnak, the average sunshine in October is 6.5h.UV index
The average daily maximum UV index in October is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: In October, the UV index of 3 transforms into the following advice:
Be vigilant - Suggestions to stave off sun damage are provided. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Karnak, IL
- Average high temperature in October: 67.8°F
The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (40.1°F).
- Average low temperature in October: 49.6°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (27°F).
Average pressure in October
Karnak, IL
- Average pressure in October: 30.05"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in October
Karnak, IL
- Average wind speed in October: 7.6mph
The windiest months (with the highest average wind speed) are January and February (9mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in October
Karnak, IL
- Average humidity in October: 71%
The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall in October
Karnak, IL
- Average rainfall in October: 0.98"
The wettest month (with the highest rainfall) is June (1.5").
The driest month (with the least rainfall) is September (0.47").
Average rainfall days in October
Karnak, IL
- Average rainfall days in October: 7.5 days
The month with the highest number of rainy days is July (13.1 days).
The months with the least rainy days are January, February and December (7.3 days).
Average snowfall in October
Karnak, IL
- Average snowfall in October: 0"
The month with the highest snowfall is February (0.67").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in October
Karnak, IL
- Average snowfall days in October: 0.1 days
The month with the highest number of snowfall days is January (3.3 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
Karnak, IL
- Average daylight in October: 11h and 12min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in October: 6h and 30min
The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).
Average sunshine days in October
Karnak, IL
- Average sunshine days in October: 21.5 days
The month with the most sunshine days is October (21.5 days).
The month with the least sunshine days is June (14.8 days).
Average UV index in October
Karnak, IL
- Average UV index in October: 3
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in October
Karnak, IL
- Average cloud cover in October: 33
The months with the most cloud cover are January and February (Cloud cover 51).
The month with the least cloud cover is September (Cloud cover 28).
Average visibility in October
Karnak, 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).
