October weather forecast
New Grand Chain, IL

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Weather in October

October, the same as September, is another enjoyable autumn month in New Grand Chain, Illinois, with an average temperature varying between 49.6°F (9.8°C) and 67.8°F (19.9°C).

Temperature

The average high-temperature decreases in October, shifting from a warm 81.1°F (27.3°C) in September to an enjoyable 67.8°F (19.9°C). During October, the average low-temperature is a frosty 49.6°F (9.8°C).

Humidity

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

Rainfall

In New Grand Chain, Illinois, in October, during 7.5 rainfall days, 0.98" (25mm) of precipitation is typically accumulated. In New Grand Chain, during the entire year, the rain falls for 118.3 days and collects up to 13.03" (331mm) of precipitation.

Snowfall

April through October are months without snowfall in New Grand Chain.

Daylight

In October, the average length of the day is 11h and 13min.
On the first day of October, sunrise is at 6:52 am and sunset at 6:38 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 5:59 pm CDT.

Sunshine

In New Grand Chain, the average sunshine in October is 6.5h.

UV index

In New Grand Chain, the average daily maximum UV index in October is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The UV index of 3 during October leads to these advisories:
Prioritize safety - Suggestions to prevent sun damage are offered. To protect against the Sun's most potent rays, avoid direct exposure around midday. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Updated: Aug 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are October temperatures?

In New Grand Chain, 67.8°F (19.9°C) is the average high-temperature and 49.6°F (9.8°C) is the average low-temperature during October. The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in September is evaluated at 86°F (30°C).

What is the least humid month?

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

What is the average humidity in October?

The average relative humidity in October in New Grand Chain is 71%.

How many days does it rain in October?

In New Grand Chain, in October, it is raining for 7.5 days, with typically 0.98" (25mm) of accumulated precipitation.

When it does not snow?

April through October are months without snowfall.

Does it snow in October?

In New Grand Chain, in October, it doesn't snow. In November, it regularly snows.

How many hours of daylight does New Grand Chain have in October?

The average day length in October is 11h and 13min.

What time are sunrise and sunset in October?

On the first day of October, sunrise is at 6:52 am and sunset at 6:38 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 5:59 pm CDT.

How many hours of sunshine does New Grand Chain have in October?

In October, the average sunshine duration is 6.5h.

How high is the UV index in October?

In October, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes 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
New Grand Chain, IL

Average temperature in October - New Grand Chain, IL
  • Average high temperature in October: 67.8°F

The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (40.1°F).

  • Average low temperature in October: 49.6°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 (27°F).

Average pressure in October
New Grand Chain, IL

Average pressure in October - New Grand Chain, IL
  • Average pressure in October: 30.05"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in October
New Grand Chain, IL

Average wind speed in October - New Grand Chain, IL
  • Average wind speed in October: 7.6mph

The windiest months (with the highest average wind speed) are January and February (9mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

Average humidity in October
New Grand Chain, IL

Average humidity in October - New Grand Chain, IL
  • Average humidity in October: 71%

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

Average rainfall in October
New Grand Chain, IL

Average rainfall in October - New Grand Chain, IL
  • Average rainfall in October: 0.98"

The wettest month (with the highest rainfall) is June (1.5").
The driest month (with the least rainfall) is September (0.47").

Average rainfall days in October
New Grand Chain, IL

Average rainfall days in October - New Grand Chain, IL
  • Average rainfall days in October: 7.5 days

The month with the highest number of rainy days is July (13.1 days).
The months with the least rainy days are January, February and December (7.3 days).

Average snowfall in October
New Grand Chain, IL

Average snowfall in October - New Grand Chain, IL
  • Average snowfall in October: 0"

The month with the highest snowfall is February (0.67").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in October
New Grand Chain, IL

Average snowfall days in October - New Grand Chain, IL
  • Average snowfall days in October: 0.1 days

The month with the highest number of snowfall days is January (3.3 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
New Grand Chain, IL

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

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in October: 6h and 3min

The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).

Average sunshine days in October
New Grand Chain, IL

Average sunshine days in October - New Grand Chain, IL
  • Average sunshine days in October: 21.5 days

The month with the most sunshine days is October (21.5 days).
The month with the least sunshine days is June (14.8 days).

Average UV index in October
New Grand Chain, IL

Average UV index in October - New Grand Chain, 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
New Grand Chain, IL

Average cloud cover in October - New Grand Chain, IL
  • Average cloud cover in October: 33

The months with the most cloud cover are January and February (Cloud cover 51).
The month with the least cloud cover is September (Cloud cover 28).

Average visibility in October
New Grand Chain, IL

Average visibility in October - New Grand Chain, 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).

New Grand Chain, Illinois, USA

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