October weather forecastCahokia, IL
October
Weather in October
October, like September, in Cahokia, Illinois, is another enjoyable autumn month, with an average temperature fluctuating between 49.1°F (9.5°C) and 66.6°F (19.2°C).Temperature
Cahokia in October demonstrates a small temperature transition, adjusting from an average high of a moderately hot 79.3°F (26.3°C) in September to an enjoyable 66.6°F (19.2°C). In October, the recorded average low-temperature in Cahokia is a chilly 49.1°F (9.5°C).Humidity
With an average relative humidity of 71%, October is the least humid month in Cahokia.Rainfall
In October, the rain falls for 11 days. Throughout October, 2.91" (74mm) of precipitation is accumulated. Throughout the year, in Cahokia, there are 152.2 rainfall days, and 36.46" (926mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall in Cahokia.Daylight
The average length of the day in October in Cahokia is 11h and 11min.On the first day of October in Cahokia, sunrise is at 6:57 am and sunset at 6:43 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 6:01 pm CDT.
Sunshine
The average sunshine in October is 6.2h.UV index
The average daily maximum UV index in October is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In October, a regular UV index of 3 translates into these guidelines:
Take measures. Individuals with light skin might experience burns in under 30 minutes. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. 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
Cahokia, IL
- Average high temperature in October: 66.6°F
The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (37.8°F).
- Average low temperature in October: 49.1°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 (24.6°F).
Average pressure in October
Cahokia, 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 (29.92"Hg).
Average wind speed in October
Cahokia, IL
- Average wind speed in October: 7.8mph
The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is July (5.5mph).
Average humidity in October
Cahokia, IL
- Average humidity in October: 71%
The months with the highest relative humidity are May and July (78%).
The month with the lowest relative humidity is October (71%).
Average rainfall in October
Cahokia, IL
- Average rainfall in October: 2.91"
The wettest month (with the highest rainfall) is May (4.53").
The driest month (with the least rainfall) is February (2.01").
Average rainfall days in October
Cahokia, IL
- Average rainfall days in October: 11 days
The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (7.7 days).
Average snowfall in October
Cahokia, IL
- Average snowfall in October: 0"
The month with the highest snowfall is February (2.44").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in October
Cahokia, IL
- Average snowfall days in October: 0.1 days
The month with the highest number of snowfall days is January (6.4 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
Cahokia, IL
- Average daylight in October: 11h and 12min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in October: 6h and 12min
The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in October
Cahokia, IL
- Average sunshine days in October: 18.7 days
The month with the most sunshine days is October (18.7 days).
The month with the least sunshine days is May (10.7 days).
Average UV index in October
Cahokia, 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
Cahokia, IL
- Average cloud cover in October: 33
The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in October
Cahokia, 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).





