October weather forecast
Atlanta, IL

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Weather in October

October, the same as September, is another refreshing autumn month in Atlanta, Illinois, with an average temperature varying between 46.9°F (8.3°C) and 63.3°F (17.4°C).

Temperature

October ushers in a slight temperature change, with average high-temperatures reducing from September's moderately hot 76.1°F (24.5°C) to a refreshing 63.3°F (17.4°C). In the month of October, the temperature generally rests at an average low of 46.9°F (8.3°C).

Humidity

The least humid month is October, with an average relative humidity of 70%.

Rainfall

In Atlanta, in October, it is raining for 9.8 days, with typically 1.34" (34mm) of accumulated precipitation. Throughout the year, there are 135 rainfall days, and 17.72" (450mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

The average length of the day in October is 11h and 7min.
On the first day of October in Atlanta, Illinois, sunrise is at 6:54 am and sunset at 6:38 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 5:54 pm CDT.

Sunshine

The average sunshine in October is 6h.

UV index

In October, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.
Note: In October, the maximum UV index of 3 translates into these guidelines:
Be vigilant - A duty to shield skin and eyes from injury exists. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Updated: Aug 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are October temperatures?

In October, in Atlanta, the average high-temperature is 63.3°F (17.4°C), and the average low-temperature is 46.9°F (8.3°C). The average heat index (a.k.a. 'real feel', 'feels like'), which factors the actual air temperature with the relative humidity, in August is appraised at 87.8°F (31°C).

What is the least humid month?

October is the least humid month, with an average relative humidity of 70%.

What is the average humidity in October?

In Atlanta, Illinois, the average relative humidity in October is 70%.

How much does it rain in October?

In Atlanta, during October, the rain falls for 9.8 days and regularly aggregates up to 1.34" (34mm) of precipitation.

When it does not snow?

In Atlanta, snow does not fall in May through October.

Does it snow in October?

In Atlanta, in October, it doesn't snow. In November, it regularly snows.

What is the average length of the day in October?

In October, the average day length is 11h and 7min.

When is the sunrise / sunset in October?

In October, on the first day of the month, sunrise is at 6:54 am and sunset at 6:38 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 5:54 pm CDT.

How long on average sun shines in October?

In October, the average sunshine duration is 6h.

What is the UV index intensity in October in Atlanta?

The average daily maximum UV index in October is 3. A UV Index of 3 to 5 symbolizes a moderate vulnerability from exposure to the Sun's 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
Atlanta, IL

Average temperature in October - Atlanta, IL
  • Average high temperature in October: 63.3°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (31.6°F).

  • Average low temperature in October: 46.9°F

The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

Average pressure in October
Atlanta, IL

Average pressure in October - Atlanta, IL
  • Average pressure in October: 30.02"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in October
Atlanta, IL

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

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).

Average humidity in October
Atlanta, IL

Average humidity in October - Atlanta, IL
  • Average humidity in October: 70%

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (70%).

Average rainfall in October
Atlanta, IL

Average rainfall in October - Atlanta, IL
  • Average rainfall in October: 1.34"

The wettest month (with the highest rainfall) is May (2.2").
The driest month (with the least rainfall) is December (0.87").

Average rainfall days in October
Atlanta, IL

Average rainfall days in October - Atlanta, IL
  • Average rainfall days in October: 9.8 days

The month with the highest number of rainy days is May (16.5 days).
The month with the least rainy days is February (5.9 days).

Average snowfall in October
Atlanta, IL

Average snowfall in October - Atlanta, IL
  • Average snowfall in October: 0"

The month with the highest snowfall is January (2.2").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in October
Atlanta, IL

Average snowfall days in October - Atlanta, IL
  • Average snowfall days in October: 0.2 days

The month with the highest number of snowfall days is January (9.5 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
Atlanta, IL

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

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in October: 6h and 0min

The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in October
Atlanta, IL

Average sunshine days in October - Atlanta, IL
  • Average sunshine days in October: 19.5 days

The months with the most sunshine days are November and December (20 days).
The month with the least sunshine days is May (11.6 days).

Average UV index in October
Atlanta, IL

Average UV index in October - Atlanta, IL
  • Average UV index in October: 3

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in October
Atlanta, IL

Average cloud cover in October - Atlanta, IL
  • Average cloud cover in October: 36

The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 30).

Average visibility in October
Atlanta, IL

Average visibility in October - Atlanta, 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).

Atlanta, Illinois, USA

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