October weather forecast
Summerfield, IL

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Weather in October

October, like September, in Summerfield, Illinois, is another refreshing autumn month, with an average temperature varying between 66.4°F (19.1°C) and 49.1°F (9.5°C).

Temperature

As October arrives, Summerfield's weather displays a decrease in high-temperatures, transitioning from September's moderately hot 78.8°F (26°C) to a refreshing 66.4°F (19.1°C). The month of October records an average low-temperature of 49.1°F (9.5°C).

Humidity

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

Rainfall

In October, in Summerfield, the rain falls for 10.5 days. Throughout October, 2.32" (59mm) of precipitation is accumulated. Throughout the year, there are 151.1 rainfall days, and 30.43" (773mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall. October is the first month it typically snows in Summerfield. Throughout October, in the average 0.1 snowfall days, it receives 0.08" (2mm) of snow. Throughout the year, in Summerfield, there are 22.4 snowfall days, and 6.1" (155mm) of snow is accumulated.

Daylight

The average length of the day in October in Summerfield is 11h and 11min.
On the first day of the month, sunrise is at 6:55 am and sunset at 6:41 pm. On the last day of October, sunrise is at 7:25 am and sunset at 5:59 pm CDT.

Sunshine

In Summerfield, the average sunshine in October is 6.3h.

UV index

In October, the average daily maximum UV index in Summerfield is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 3 in October converts into the following recommendations:
Take precautions - Protection against sunburn is recommended. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Summerfield in October?

The high-temperature, in October, in Summerfield, records 66.4°F (19.1°C), while the low-temperature is 49.1°F (9.5°C). In August, the average heat index (a.k.a. 'feels like', 'real feel'), which factors the actual air temperature with the relative humidity, is appraised at 93.2°F (34°C).

What is the least humid month in Summerfield?

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

What is the average humidity in October in Summerfield?

In October, the average relative humidity is 71%.

How many days does it rain in October in Summerfield?

In Summerfield, in October, it is raining for 10.5 days, with typically 2.32" (59mm) of accumulated precipitation.

When does it start to snow in Summerfield?

October is the first month it typically snows in Summerfield. Throughout October, in the average 0.1 snowfall days, it receives 0.08" (2mm) of snow.

What is the average length of the day in October in Summerfield?

In October, the average day length in Summerfield, Illinois, is 11h and 11min.

When are sunrise and sunset in October in Summerfield?

On the first day of October in Summerfield, Illinois, sunrise is at 6:55 am and sunset at 6:41 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 5:59 pm CDT.

How long on average sun shines in October in Summerfield?

In October, the average sunshine duration is 6.3h.

How high is the UV index in October in Summerfield?

The average daily maximum UV index in October in Summerfield, Illinois, is 3. A UV Index of 3 to 5 symbolizes a moderate health threat from unprotected exposure to 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
Summerfield, IL

Average temperature in October - Summerfield, IL
  • Average high temperature in October: 66.4°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (37.8°F).

  • Average low temperature in October: 49.1°F

The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).

Average pressure in October
Summerfield, IL

Average pressure in October - Summerfield, IL
  • Average pressure in October: 30.03"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in October
Summerfield, IL

Average wind speed in October - Summerfield, IL
  • Average wind speed in October: 8mph

The windiest month (with the highest average wind speed) is January (9.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

Average humidity in October
Summerfield, IL

Average humidity in October - Summerfield, IL
  • Average humidity in October: 71%

The month with the highest relative humidity is July (80%).
The month with the lowest relative humidity is October (71%).

Average rainfall in October
Summerfield, IL

Average rainfall in October - Summerfield, IL
  • Average rainfall in October: 2.32"

The wettest month (with the highest rainfall) is June (3.66").
The driest month (with the least rainfall) is February (1.5").

Average rainfall days in October
Summerfield, IL

Average rainfall days in October - Summerfield, IL
  • Average rainfall days in October: 10.5 days

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (8 days).

Average snowfall in October
Summerfield, IL

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

The month with the highest snowfall is February (1.85").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in October
Summerfield, IL

Average snowfall days in October - Summerfield, IL
  • Average snowfall days in October: 0.1 days

The month with the highest number of snowfall days is January (7.5 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
Summerfield, IL

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

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in October: 6h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).

Average sunshine days in October
Summerfield, IL

Average sunshine days in October - Summerfield, IL
  • Average sunshine days in October: 18.8 days

The month with the most sunshine days is October (18.8 days).
The month with the least sunshine days is July (11 days).

Average UV index in October
Summerfield, IL

Average UV index in October - Summerfield, 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, November and December (UV index 2).

Average cloud cover in October
Summerfield, IL

Average cloud cover in October - Summerfield, IL
  • Average cloud cover in October: 32

The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 28).

Average visibility in October
Summerfield, IL

Average visibility in October - Summerfield, 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).

Summerfield, Illinois, USA

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