October weather forecast
Allerton, IL

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Weather in October

October, the same as September, is another refreshing autumn month in Allerton, Illinois, with an average temperature ranging between max 63.9°F (17.7°C) and min 48°F (8.9°C).

Temperature

The beginning of October marks a decrease in the average high-temperature, transitioning from a moderately hot 77°F (25°C) in September to a comfortable 63.9°F (17.7°C). Allerton witnesses an average low-temperature of 48°F (8.9°C) throughout the month of October.

Humidity

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

Rainfall

In Allerton, in October, it is raining for 9.9 days, with typically 1.3" (33mm) of accumulated precipitation. Throughout the year, there are 132 rainfall days, and 15.94" (405mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall. October is the first month it typically snows. Throughout October, in the average 0.2 snowfall days, it receives 0.04" (1mm) of snow. In Allerton, during the entire year, snow falls for 25.6 days and aggregates up to 4.41" (112mm) of snow.

Daylight

The average length of the day in October in Allerton is 11h and 8min.
On the first day of October, sunrise is at 6:48 am and sunset at 6:33 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 5:50 pm CDT.

Sunshine

In October, the average sunshine in Allerton, Illinois, is 6.3h.

UV index

In Allerton, the average daily maximum UV index in October is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: In October, the maximum UV index of 3 transforms into these recommendations:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. To protect against the Sun's most potent rays, avoid direct exposure around midday. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
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Frequently asked questions

What is the temperature in October in Allerton?

In October, the average high-temperature and low-temperature in Allerton, Illinois, are 63.9°F (17.7°C) and 48°F (8.9°C) respectively. The average heat index (a.k.a. 'apparent temperature', 'feels like'), which factors the actual air temperature with the relative humidity, in August is estimated at 86°F (30°C).

What is the least humid month in Allerton?

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

What is the average humidity in October in Allerton?

The average relative humidity in October in Allerton is 70%.

How many days does it rain in October in Allerton?

In Allerton, in October, during 9.9 rainfall days, 1.3" (33mm) of precipitation is typically accumulated.

When does it start snowing in Allerton?

October is the first month it typically snows in Allerton. Throughout October, in the average 0.2 snowfall days, it receives 0.04" (1mm) of snow.

How many hours of daylight does Allerton have in October?

In Allerton, Illinois, the average day length in October is 11h and 8min.

When are sunrise and sunset in October in Allerton?

On the first day of October in Allerton, Illinois, sunrise is at 6:48 am and sunset at 6:33 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 5:50 pm CDT.

How many hours of sunshine does Allerton have in October?

In Allerton, Illinois, the average sunshine duration in October is 6.3h.

What is the UV index intensity in October in Allerton?

In Allerton, the average daily maximum UV index in October is 3. A UV Index of 3 to 5 symbolizes a medium hazard to health 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
Allerton, IL

Average temperature in October - Allerton, IL
  • Average high temperature in October: 63.9°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.3°F).

  • Average low temperature in October: 48°F

The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (21°F).

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Average pressure in October
Allerton, IL

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

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in October
Allerton, IL

Average wind speed in October - Allerton, IL
  • Average wind speed in October: 9.4mph

The windiest month (with the highest average wind speed) is January (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).

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Average humidity in October
Allerton, IL

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

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in October
Allerton, IL

Average rainfall in October - Allerton, IL
  • Average rainfall in October: 1.3"

The wettest month (with the highest rainfall) is April (1.97").
The driest month (with the least rainfall) is February (0.83").

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Average rainfall days in October
Allerton, IL

Average rainfall days in October - Allerton, IL
  • Average rainfall days in October: 9.9 days

The month with the highest number of rainy days is July (15.7 days).
The month with the least rainy days is February (6 days).

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Average snowfall in October
Allerton, IL

Average snowfall in October - Allerton, IL
  • Average snowfall in October: 0.04"

The month with the highest snowfall is December (1.26").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in October
Allerton, IL

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

The month with the highest number of snowfall days is January (8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in October / Average sunshine in October - Allerton, 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 2min

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 6min).

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Average sunshine days in October
Allerton, IL

Average sunshine days in October - Allerton, IL
  • Average sunshine days in October: 18.3 days

The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is July (11.1 days).

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Average UV index in October
Allerton, IL

Average UV index in October - Allerton, 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).

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Average cloud cover in October
Allerton, IL

Average cloud cover in October - Allerton, IL
  • Average cloud cover in October: 35

The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is June (Cloud cover 30).

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Average visibility in October
Allerton, IL

Average visibility in October - Allerton, 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).

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Allerton, Illinois, USA

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