October weather forecast
Carpentersville, IL

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Weather in October

October, the same as September, in Carpentersville, Illinois, is another mild autumn month, with an average temperature ranging between max 59.5°F (15.3°C) and min 44.2°F (6.8°C).

Temperature

With the onset of October, Carpentersville's average high-temperature adjusts, receding from September's pleasant 72.5°F (22.5°C) to a mild 59.5°F (15.3°C). Carpentersville records an average low-temperature of 44.2°F (6.8°C) throughout the month of October.

Humidity

The months with the lowest humidity are April and October, with an average relative humidity of 76%.

Rainfall

In Carpentersville, Illinois, during October, the rain falls for 11.5 days and regularly aggregates up to 1.22" (31mm) of precipitation. In Carpentersville, Illinois, during the entire year, the rain falls for 132.8 days and collects up to 15.47" (393mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. October is the first month it typically snows. Throughout October, in the average 0.5 snowfall days, it receives 0.12" (3mm) of snow. Throughout the year, there are 43.2 snowfall days, and 7.4" (188mm) of snow is accumulated.

Daylight

In Carpentersville, the average length of the day in October is 11h and 4min.
On the first day of October, sunrise is at 6:50 am and sunset at 6:34 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 5:47 pm CDT.

Sunshine

In October, the average sunshine is 5.5h.

UV index

The average daily maximum UV index in October is 2. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum UV index of 2 during October leads to these instructions:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Updated: Jun 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are October temperatures?

An average high-temperature, in October, in Carpentersville, is 59.5°F (15.3°C) and the average low-temperature is 44.2°F (6.8°C).

What are the least humid months?

The months with the lowest humidity are April and October, with an average relative humidity of 76%.

What is the average humidity in October?

In Carpentersville, the average relative humidity in October is 76%.

How many days does it rain in October?

In Carpentersville, in October, it is raining for 11.5 days, with typically 1.22" (31mm) of accumulated precipitation.

When does it start snowing?

October is the first month it typically snows. Throughout October, in the average 0.5 snowfall days, it receives 0.12" (3mm) of snow.

How many hours of daylight does Carpentersville have in October?

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

When are sunrise and sunset in October?

In October, on the first day of the month, sunrise is at 6:50 am and sunset at 6:34 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 5:47 pm CDT.

How long on average sun shines in October in Carpentersville?

The average sunshine duration in October is 5.5h.

What is the UV index reading in October?

In October, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's 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
Carpentersville, IL

Average temperature in October - Carpentersville, IL
  • Average high temperature in October: 59.5°F

The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (27°F).

  • Average low temperature in October: 44.2°F

The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).

Average pressure in October
Carpentersville, IL

Average pressure in October - Carpentersville, IL
  • Average pressure in October: 30"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
Carpentersville, IL

Average wind speed in October - Carpentersville, IL
  • Average wind speed in October: 8.7mph

The windiest months (with the highest average wind speed) are January and February (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).

Average humidity in October
Carpentersville, IL

Average humidity in October - Carpentersville, IL
  • Average humidity in October: 76%

The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are April and October (76%).

Average rainfall in October
Carpentersville, IL

Average rainfall in October - Carpentersville, IL
  • Average rainfall in October: 1.22"

The wettest months (with the highest rainfall) are April and August (1.89").
The driest month (with the least rainfall) is December (0.67").

Average rainfall days in October
Carpentersville, IL

Average rainfall days in October - Carpentersville, IL
  • Average rainfall days in October: 11.5 days

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is February (4.1 days).

Average snowfall in October
Carpentersville, IL

Average snowfall in October - Carpentersville, IL
  • Average snowfall in October: 0.12"

The month with the highest snowfall is January (2.01").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in October
Carpentersville, IL

Average snowfall days in October - Carpentersville, IL
  • Average snowfall days in October: 0.5 days

The month with the highest number of snowfall days is January (12.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in October / Average sunshine in October - Carpentersville, 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 3min

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in October
Carpentersville, IL

Average sunshine days in October - Carpentersville, IL
  • Average sunshine days in October: 16.5 days

The month with the most sunshine days is December (18.5 days).
The month with the least sunshine days is July (10.7 days).

Average UV index in October
Carpentersville, IL

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

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

Average cloud cover in October
Carpentersville, IL

Average cloud cover in October - Carpentersville, IL
  • Average cloud cover in October: 43

The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are July, August and September (Cloud cover 32).

Average visibility in October
Carpentersville, IL

Average visibility in October - Carpentersville, 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).

Carpentersville, Illinois, USA

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