October weather forecast
Leaf River, IL

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Weather in October

October, the same as September, in Leaf River, Illinois, is a moderate autumn month, with an average temperature ranging between min 43.7°F (6.5°C) and max 59.7°F (15.4°C).

Temperature

As September shifts into October, a slight alteration in temperatures is observed, with average highs reducing from a pleasant 73°F (22.8°C) to a moderate 59.7°F (15.4°C). An average low-temperature of 43.7°F (6.5°C) marks the nights in Leaf River, Illinois throughout October.

Humidity

The months with the lowest humidity are April and October, with an average relative humidity of 75%.

Rainfall

In Leaf River, in October, it is raining for 12.5 days, with typically 2.87" (73mm) of accumulated precipitation. Throughout the year, in Leaf River, Illinois, there are 154.8 rainfall days, and 32.36" (822mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Leaf River. October is the first month it typically snows. Throughout October, in the average 0.8 snowfall days, it receives 0.83" (21mm) of snow. Throughout the year, there are 45.5 snowfall days, and 19.25" (489mm) of snow is accumulated.

Daylight

In October, the average length of the day is 11h and 4min.
On the first day of October in Leaf River, sunrise is at 6:55 am and sunset at 6:38 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 5:52 pm CDT.

Sunshine

In Leaf River, the average sunshine in October is 5.2h.

UV index

In Leaf River, the average daily maximum UV index in October is 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 2 during October translates into the following directions:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Leaf River in October?

In October, the average high-temperature and low-temperature in Leaf River, Illinois, are 59.7°F (15.4°C) and 43.7°F (6.5°C) respectively.

What is the least humid month in Leaf River?

April and October, with an average relative humidity of 75%, are the least humid months in Leaf River.

What is the average humidity in October in Leaf River?

The average relative humidity in October in Leaf River is 75%.

How much does it rain in Leaf River in October?

In Leaf River, Illinois, in October, it is raining for 12.5 days, with typically 2.87" (73mm) of accumulated precipitation.

When does it start snowing in Leaf River?

October is the first month it typically snows in Leaf River. Throughout October, in the average 0.8 snowfall days, it receives 0.83" (21mm) of snow.

How many hours of daylight does Leaf River have in October?

The average day length in October is 11h and 4min.

When are sunrise and sunset in October in Leaf River?

On the first day of October in Leaf River, sunrise is at 6:55 am and sunset at 6:38 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 5:52 pm CDT.

How many hours of sunshine does Leaf River have in October?

In October, the average sunshine duration in Leaf River, Illinois, is 5.2h.

What is the UV index reading in October in Leaf River?

In Leaf River, the average daily maximum UV index in October is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
Leaf River, IL

Average temperature in October - Leaf River, IL
  • Average high temperature in October: 59.7°F

The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (26.1°F).

  • Average low temperature in October: 43.7°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 (13.8°F).

Average pressure in October
Leaf River, IL

Average pressure in October - Leaf River, IL
  • Average pressure in October: 30"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in October
Leaf River, IL

Average wind speed in October - Leaf River, IL
  • Average wind speed in October: 9.1mph

The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).

Average humidity in October
Leaf River, IL

Average humidity in October - Leaf River, IL
  • Average humidity in October: 75%

The month with the highest relative humidity is January (86%).
The months with the lowest relative humidity are April and October (75%).

Average rainfall in October
Leaf River, IL

Average rainfall in October - Leaf River, IL
  • Average rainfall in October: 2.87"

The wettest month (with the highest rainfall) is May (4.53").
The driest month (with the least rainfall) is February (1.57").

Average rainfall days in October
Leaf River, IL

Average rainfall days in October - Leaf River, IL
  • Average rainfall days in October: 12.5 days

The month with the highest number of rainy days is May (19.1 days).
The month with the least rainy days is February (5.3 days).

Average snowfall in October
Leaf River, IL

Average snowfall in October - Leaf River, IL
  • Average snowfall in October: 0.83"

The month with the highest snowfall is January (5.79").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in October
Leaf River, IL

Average snowfall days in October - Leaf River, IL
  • Average snowfall days in October: 0.8 days

The month with the highest number of snowfall days is January (12.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in October /
Average sunshine in October
Leaf River, IL

Average daylight in October / Average sunshine in October - Leaf River, 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 1min

The month with the most sunshine is July (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

Average sunshine days in October
Leaf River, IL

Average sunshine days in October - Leaf River, IL
  • Average sunshine days in October: 16.3 days

The month with the most sunshine days is November (17 days).
The month with the least sunshine days is June (9.2 days).

Average UV index in October
Leaf River, IL

Average UV index in October - Leaf River, IL
  • Average UV index in October: 2

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in October
Leaf River, IL

Average cloud cover in October - Leaf River, IL
  • Average cloud cover in October: 43

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is September (Cloud cover 34).

Average visibility in October
Leaf River, IL

Average visibility in October - Leaf River, IL
  • Average visibility in October: 6mi

The months with the highest visibility are March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, February, July and August (5mi).

Leaf River, Illinois, USA

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