October weather forecast
Cahokia, IL

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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.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Cahokia in October?

Cahokia in October has an average high-temperature of 66.6°F (19.2°C) and an average low-temperature of 49.1°F (9.5°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines relative humidity and air temperature, in August is calculated to be 95°F (35°C).

What is the least humid month in Cahokia?

With an average relative humidity of 71%, October is the least humid month in Cahokia, Illinois.

What is the average humidity in October in Cahokia?

In Cahokia, the average relative humidity in October is 71%.

How many days does it rain in October in Cahokia?

In October, the rain falls for 11 days. Throughout October, 2.91" (74mm) of precipitation is accumulated.

When it does not snow in Cahokia?

In Cahokia, snow does not fall in April through October.

Does it snow in Cahokia in October?

In Cahokia, Illinois, in October, it doesn't snow. In November, it regularly snows.

What is the average length of the day in October in Cahokia?

In Cahokia, the average day length in October is 11h and 11min.

When is the sunrise / sunset in October in Cahokia?

In October, on the first day of the month, 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.

How long on average sun shines in October in Cahokia?

The average sunshine duration in October in Cahokia is 6.2h.

What is the UV index intensity in October in Cahokia?

In Cahokia, Illinois, the average daily maximum UV index in October is 3. A UV Index estimate of 3 to 5 represents a moderate health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
Cahokia, IL

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 - 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 - 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 - 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 - 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 - 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 - 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 - 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 / Average sunshine in October - Cahokia, IL
  • Average daylight in October: 11h and 1min

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 1min

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 - 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 - 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 - 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 - 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).

Cahokia, Illinois, USA

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