October weather forecast
Deer Grove, IL

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Weather in October

October, the same as September, is another refreshing autumn month in Deer Grove, Illinois, with temperature in the range of an average high of 61°F (16.1°C) and an average low of 45°F (7.2°C).

Temperature

The onset of October brings a small change in high-temperatures, falling from a moderately hot 74.3°F (23.5°C) in September to a comfortable 61°F (16.1°C). During the month of October, Deer Grove's nighttime temperature lowers to an average of 45°F (7.2°C).

Humidity

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

Rainfall

In Deer Grove, in October, it is raining for 9.5 days, with typically 1.14" (29mm) of accumulated precipitation. In Deer Grove, during the entire year, the rain falls for 114.5 days and collects up to 12.72" (323mm) of precipitation.

Snowfall

Months with snowfall are January through April, October through December. 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, in Deer Grove, there are 31.5 snowfall days, and 5.2" (132mm) of snow is accumulated.

Daylight

In October, the average length of the day is 11h and 4min.
On the first day of October, sunrise is at 6:56 am and sunset at 6:39 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 5:54 pm CDT.

Sunshine

In Deer Grove, the average sunshine in October is 5.5h.

UV index

In October, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the average person.
Note: The daily maximum UV index of 2 in October interprets into the following advice:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Updated: Jun 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Deer Grove in October?

The average high-temperature, in October, in Deer Grove, is 61°F (16.1°C), while the average low-temperature is 45°F (7.2°C).

What is the least humid month?

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

What is the average humidity in October?

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

How much does it rain in October?

In Deer Grove, in October, it is raining for 9.5 days, with typically 1.14" (29mm) 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 Deer Grove have in October?

In October, the average day length is 11h and 4min.

When is the sunrise / sunset in October?

In October, on the first day of the month, sunrise is at 6:56 am and sunset at 6:39 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 5:54 pm CDT.

How many hours of sunshine does Deer Grove have in October?

The average sunshine duration in October is 5.5h.

What is the UV index reading in October?

In Deer Grove, the average daily maximum UV index in October is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to Sun's UV rays.
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
Deer Grove, IL

Average temperature in October - Deer Grove, IL
  • Average high temperature in October: 61°F

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (27.5°F).

  • Average low temperature in October: 45°F

The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (15.6°F).

Average pressure in October
Deer Grove, IL

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

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in October
Deer Grove, IL

Average wind speed in October - Deer Grove, IL
  • Average wind speed in October: 9.3mph

The windiest month (with the highest average wind speed) is April (10.5mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

Average humidity in October
Deer Grove, IL

Average humidity in October - Deer Grove, IL
  • Average humidity in October: 73%

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (73%).

Average rainfall in October
Deer Grove, IL

Average rainfall in October - Deer Grove, IL
  • Average rainfall in October: 1.14"

The wettest month (with the highest rainfall) is May (2.01").
The driest month (with the least rainfall) is January (0.55").

Average rainfall days in October
Deer Grove, IL

Average rainfall days in October - Deer Grove, IL
  • Average rainfall days in October: 9.5 days

The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (3.8 days).

Average snowfall in October
Deer Grove, IL

Average snowfall in October - Deer Grove, IL
  • Average snowfall in October: 0.12"

The month with the highest snowfall is January (1.57").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in October
Deer Grove, IL

Average snowfall days in October - Deer Grove, IL
  • Average snowfall days in October: 0.5 days

The month with the highest number of snowfall days is January (10.1 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
Deer Grove, IL

Average daylight in October / Average sunshine in October - Deer Grove, 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 3min

The months with the most sunshine are June, July and August (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in October
Deer Grove, IL

Average sunshine days in October - Deer Grove, IL
  • Average sunshine days in October: 19.7 days

The month with the most sunshine days is December (20.8 days).
The month with the least sunshine days is June (13.5 days).

Average UV index in October
Deer Grove, IL

Average UV index in October - Deer Grove, 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
Deer Grove, IL

Average cloud cover in October - Deer Grove, IL
  • Average cloud cover in October: 40

The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is September (Cloud cover 32).

Average visibility in October
Deer Grove, IL

Average visibility in October - Deer Grove, IL
  • Average visibility in October: 6mi

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

Deer Grove, Illinois, USA

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