October weather forecast
Cary, IL

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Weather in October

October, like September, is a moderate autumn month in Cary, Illinois, with an average temperature ranging between min 44.2°F (6.8°C) and max 59°F (15°C).

Temperature

Observing a mild shift, the average high-temperature during October reduces from September's agreeable 72.5°F (22.5°C) to a moderate 59°F (15°C). During October, Cary records an average temperature of 44.2°F (6.8°C) at night.

Humidity

The least humid month is October, with an average relative humidity of 75%.

Rainfall

In Cary, during October, the rain falls for 13.7 days and regularly aggregates up to 2.09" (53mm) of precipitation. In Cary, Illinois, during the entire year, the rain falls for 151.2 days and collects up to 24.17" (614mm) 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 0.08" (2mm) of snow. In Cary, during the entire year, snow falls for 48.9 days and aggregates up to 14.76" (375mm) of snow.

Daylight

In Cary, the average length of the day in October is 11h and 3min.
On the first day of the month, sunrise is at 6:50 am and sunset at 6:33 pm. On the last day of October, sunrise is at 7:25 am and sunset at 5:47 pm CDT.

Sunshine

In October, the average sunshine is 5.5h.

UV index

In Cary, the average daily maximum UV index in October is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index, 2 in October, converts into the following recommendations:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Updated: Jul 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average October temperature?

Cary in October has an average high-temperature of 59°F (15°C) and an average low-temperature of 44.2°F (6.8°C).

What is the least humid month?

The least humid month is October, with an average relative humidity of 75%.

What is the average humidity in October?

In October, the average relative humidity is 75%.

How much does it rain in October?

In Cary, in October, during 13.7 rainfall days, 2.09" (53mm) of precipitation is typically accumulated.

When does it start snowing?

October is the first month it typically snows. Throughout October, in the average 0.5 snowfall days, it receives 0.08" (2mm) of snow.

How many hours of daylight does Cary have in October?

In October, the average day length is 11h and 3min.

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 6:33 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 5:47 pm CDT.

How many hours of sunshine does Cary have in October?

The average sunshine duration in October is 5.5h.

What is the UV index intensity in October?

In Cary, the average daily maximum UV index in October is 2. A UV Index estimate of 2, and below, represents a low health threat 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
Cary, IL

Average temperature in October - Cary, IL
  • Average high temperature in October: 59°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 (27°F).

  • Average low temperature in October: 44.2°F

The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).

Average pressure in October
Cary, IL

Average pressure in October - Cary, 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
Cary, IL

Average wind speed in October - Cary, IL
  • Average wind speed in October: 8.8mph

The windiest month (with the highest average wind speed) is January (10mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

Average humidity in October
Cary, IL

Average humidity in October - Cary, IL
  • Average humidity in October: 75%

The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is October (75%).

Average rainfall in October
Cary, IL

Average rainfall in October - Cary, IL
  • Average rainfall in October: 2.09"

The wettest month (with the highest rainfall) is June (3.15").
The driest month (with the least rainfall) is December (1.1").

Average rainfall days in October
Cary, IL

Average rainfall days in October - Cary, IL
  • Average rainfall days in October: 13.7 days

The month with the highest number of rainy days is July (18.8 days).
The months with the least rainy days are January and February (5.3 days).

Average snowfall in October
Cary, IL

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

The month with the highest snowfall is January (3.82").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in October
Cary, IL

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

The month with the highest number of snowfall days is January (13.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in October / Average sunshine in October - Cary, 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 36min).

Average sunshine days in October
Cary, IL

Average sunshine days in October - Cary, IL
  • Average sunshine days in October: 14.2 days

The month with the most sunshine days is November (16.2 days).
The month with the least sunshine days is June (10 days).

Average UV index in October
Cary, IL

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

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

Average cloud cover in October
Cary, IL

Average cloud cover in October - Cary, 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 August and September (Cloud cover 31).

Average visibility in October
Cary, IL

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

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

Cary, Illinois, USA

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