October weather forecast
Prairie du Rocher, IL

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Weather in October

October, the same as September, is another comfortable autumn month in Prairie du Rocher, Illinois, with an average temperature fluctuating between 49.1°F (9.5°C) and 67.6°F (19.8°C).

Temperature

The average high-temperature drops in October, from September's warm 80.2°F (26.8°C) to a comfortable 67.6°F (19.8°C). The temperature lowers to an average of 49.1°F (9.5°C) during October nights.

Humidity

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

Rainfall

In Prairie du Rocher, in October, it is raining for 10.7 days, with typically 2.76" (70mm) of accumulated precipitation. Throughout the year, there are 145 rainfall days, and 32.24" (819mm) of precipitation is accumulated.

Snowfall

In Prairie du Rocher, snow does not fall in April through October.

Daylight

The average length of the day in October is 11h and 11min.
On the first day of October in Prairie du Rocher, sunrise is at 6:56 am and sunset at 6:42 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 6:01 pm CDT.

Sunshine

In Prairie du Rocher, the average sunshine in October is 6.3h.

UV index

In October, the average daily maximum UV index in Prairie du Rocher is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for average individuals.
Note: A typical high UV index of 3 in October suggests the following recommendations:
Take measures. Individuals with light skin might experience burns in under 30 minutes. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Stay sun-safe with clothing that is both closely woven and worn loosely.
Updated: Aug 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average October temperature?

In Prairie du Rocher, in October, the average high-temperature is 67.6°F (19.8°C), and the average low-temperature is 49.1°F (9.5°C). In August, the average heat index (a.k.a. 'feels like', 'real feel'), which factors the actual air temperature with the relative humidity, is calculated to be 98.6°F (37°C).

What is the least humid month?

The least humid month is October, with an average relative humidity of 71%.

What is the average humidity in October?

In Prairie du Rocher, the average relative humidity in October is 71%.

How many days does it rain in October?

In October, the rain falls for 10.7 days. Throughout October, 2.76" (70mm) of precipitation is accumulated.

When it does not snow?

In Prairie du Rocher, snow does not fall in April through October.

Does it snow in October?

In Prairie du Rocher, Illinois, in October, it doesn't snow. In November, it regularly snows.

What is the average length of the day in October?

The average day length in October is 11h and 11min.

When are sunrise and sunset in October in Prairie du Rocher?

On the first day of October, sunrise is at 6:56 am and sunset at 6:42 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 6:01 pm CDT.

How many hours of sunshine does Prairie du Rocher have in October?

The average sunshine duration in October is 6.3h.

What is the UV index intensity in October?

The average daily maximum UV index in October is 3. A UV Index reading of 3 to 5 represents a moderate vulnerability from unprotected exposure to UV radiation.
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
Prairie du Rocher, IL

Average temperature in October - Prairie du Rocher, IL
  • Average high temperature in October: 67.6°F

The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (39.6°F).

  • Average low temperature in October: 49.1°F

The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (25.9°F).

Average pressure in October
Prairie du Rocher, IL

Average pressure in October - Prairie du Rocher, IL
  • Average pressure in October: 30.04"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in October
Prairie du Rocher, IL

Average wind speed in October - Prairie du Rocher, IL
  • Average wind speed in October: 7.7mph

The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

Average humidity in October
Prairie du Rocher, IL

Average humidity in October - Prairie du Rocher, IL
  • Average humidity in October: 71%

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (71%).

Average rainfall in October
Prairie du Rocher, IL

Average rainfall in October - Prairie du Rocher, IL
  • Average rainfall in October: 2.76"

The wettest month (with the highest rainfall) is May (3.86").
The driest months (with the least rainfall) are February and September (1.81").

Average rainfall days in October
Prairie du Rocher, IL

Average rainfall days in October - Prairie du Rocher, IL
  • Average rainfall days in October: 10.7 days

The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is January (7.3 days).

Average snowfall in October
Prairie du Rocher, IL

Average snowfall in October - Prairie du Rocher, IL
  • Average snowfall in October: 0"

The months with the highest snowfall are January and February (2.36").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in October
Prairie du Rocher, IL

Average snowfall days in October - Prairie du Rocher, IL
  • Average snowfall days in October: 0 days

The month with the highest number of snowfall days is January (5.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in October /
Average sunshine in October
Prairie du Rocher, IL

Average daylight in October / Average sunshine in October - Prairie du Rocher, 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 36min).

  • Average sunshine in October: 6h and 2min

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
Prairie du Rocher, IL

Average sunshine days in October - Prairie du Rocher, IL
  • Average sunshine days in October: 19 days

The month with the most sunshine days is December (19.7 days).
The month with the least sunshine days is July (12.3 days).

Average UV index in October
Prairie du Rocher, IL

Average UV index in October - Prairie du Rocher, 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
Prairie du Rocher, IL

Average cloud cover in October - Prairie du Rocher, IL
  • Average cloud cover in October: 33

The months with the most cloud cover are January and February (Cloud cover 49).
The months with the least cloud cover are June and August (Cloud cover 28).

Average visibility in October
Prairie du Rocher, IL

Average visibility in October - Prairie du Rocher, 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).

Prairie du Rocher, Illinois, USA

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