October weather forecast
Thornton, IL

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Weather in October

October, the same as September, is another refreshing autumn month in Thornton, Illinois, with an average temperature varying between 46.9°F (8.3°C) and 61.2°F (16.2°C).

Temperature

The onset of October comes with a shift in the average high-temperature, falling from a moderately hot 73.9°F (23.3°C) in September to an enjoyable 61.2°F (16.2°C). In Thornton, the average low-temperature during the month of October is a chilly 46.9°F (8.3°C).

Humidity

October is the least humid month, with an average relative humidity of 73%.

Rainfall

In Thornton, in October, during 14.3 rainfall days, 2.76" (70mm) of precipitation is typically accumulated. Throughout the year, there are 155.6 rainfall days, and 31.3" (795mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall. October is the first month it typically snows. Throughout October, in the average 0.3 snowfall days, it receives 0.08" (2mm) of snow. Throughout the year, there are 44.6 snowfall days, and 16.46" (418mm) of snow is accumulated.

Daylight

The average length of the day in October in Thornton is 11h and 5min.
On the first day of the month, sunrise is at 6:48 am and sunset at 6:31 pm. On the last day of October, sunrise is at 7:21 am and sunset at 5:46 pm CDT.

Sunshine

In Thornton, Illinois, the average sunshine in October is 5.9h.

UV index

In Thornton, the average daily maximum UV index in October is 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for average individuals.
Note: The daily high UV index of 2 during October translates into the following recommendations:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Opt for tightly woven and loose clothing to enhance protection from the Sun. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Updated: Jun 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Thornton in October?

October temperatures vary between a high-temperature of 61.2°F (16.2°C) and a low-temperature of 46.9°F (8.3°C). In July, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is calculated to be 87.8°F (31°C).

What is the least humid month?

The least humid month is October, with an average relative humidity of 73%.

What is the average humidity in October?

In Thornton, the average relative humidity in October is 73%.

How many days does it rain in October?

In Thornton, in October, during 14.3 rainfall days, 2.76" (70mm) of precipitation is typically accumulated.

When does it start to snow?

October is the first month it typically snows. Throughout October, in the average 0.3 snowfall days, it receives 0.08" (2mm) of snow.

What is the average length of the day in October?

In October, the average day length is 11h and 5min.

What time are sunrise and sunset in October?

In October, on the first day of the month, sunrise is at 6:48 am and sunset at 6:31 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 5:46 pm CDT.

How many hours of sunshine does Thornton have in October?

The average sunshine duration in October is 5.9h.

How high is the UV index in October?

The average daily maximum UV index in October is 2. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to UV radiation.
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
Thornton, IL

Average temperature in October - Thornton, IL
  • Average high temperature in October: 61.2°F

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (29.7°F).

  • Average low temperature in October: 46.9°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

Average pressure in October
Thornton, IL

Average pressure in October - Thornton, IL
  • Average pressure in October: 30.01"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in October
Thornton, IL

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

The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).

Average humidity in October
Thornton, IL

Average humidity in October - Thornton, IL
  • Average humidity in October: 73%

The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (73%).

Average rainfall in October
Thornton, IL

Average rainfall in October - Thornton, IL
  • Average rainfall in October: 2.76"

The wettest month (with the highest rainfall) is May (4.17").
The driest month (with the least rainfall) is December (1.54").

Average rainfall days in October
Thornton, IL

Average rainfall days in October - Thornton, IL
  • Average rainfall days in October: 14.3 days

The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is February (6.1 days).

Average snowfall in October
Thornton, IL

Average snowfall in October - Thornton, IL
  • Average snowfall in October: 0.08"

The month with the highest snowfall is January (4.53").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in October
Thornton, IL

Average snowfall days in October - Thornton, IL
  • Average snowfall days in October: 0.3 days

The month with the highest number of snowfall days is January (12.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in October /
Average sunshine in October
Thornton, IL

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

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in October: 5h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

Average sunshine days in October
Thornton, IL

Average sunshine days in October - Thornton, IL
  • Average sunshine days in October: 14.4 days

The month with the most sunshine days is November (16.4 days).
The month with the least sunshine days is April (10.2 days).

Average UV index in October
Thornton, IL

Average UV index in October - Thornton, IL
  • Average UV index in October: 2

The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in October
Thornton, IL

Average cloud cover in October - Thornton, IL
  • Average cloud cover in October: 42

The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in October
Thornton, IL

Average visibility in October - Thornton, IL
  • Average visibility in October: 6mi

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

Thornton, Illinois, USA

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