October weather forecast
Zion, IL

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Weather in October

October, like September, is another mild autumn month in Zion, Illinois, with an average temperature varying between 46.9°F (8.3°C) and 58.3°F (14.6°C).

Temperature

In October, the average high-temperature decreases from an agreeable 70.9°F (21.6°C) in September to a refreshing 58.3°F (14.6°C). Throughout October, Zion anticipates an average low-temperature of 46.9°F (8.3°C).

Humidity

The months with the lowest humidity in Zion are October and November, with an average relative humidity of 75%.

Rainfall

In Zion, during October, the rain falls for 12.9 days and regularly aggregates up to 1.89" (48mm) of precipitation. In Zion, Illinois, during the entire year, the rain falls for 142.5 days and collects up to 21.5" (546mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall in Zion. October is the first month it typically snows in Zion. Throughout October, in the average 0.7 snowfall days, it receives 0.16" (4mm) of snow. Throughout the year, there are 45.5 snowfall days, and 9.37" (238mm) of snow is accumulated.

Daylight

In October, the average length of the day is 11h and 2min.
On the first day of October, sunrise is at 6:49 am and sunset at 6:32 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 5:45 pm CDT.

Sunshine

The average sunshine in October is 5.6h.

UV index

In October, the average daily maximum UV index in Zion is 2. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: In October, a daily maximum UV index of 2 leads to the following instructions:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
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Frequently asked questions

What is the usual temperature for Zion in October?

October temperatures in Zion, Illinois, vary between a high-temperature of 58.3°F (14.6°C) and a low-temperature of 46.9°F (8.3°C).

What is the least humid month in Zion?

October and November, with an average relative humidity of 75%, are the least humid months in Zion, Illinois.

What is the average humidity in October in Zion?

In October, the average relative humidity in Zion, Illinois, is 75%.

How many days does it rain in October in Zion?

In Zion, during October, the rain falls for 12.9 days and regularly aggregates up to 1.89" (48mm) of precipitation.

When does it start to snow in Zion?

October is the first month it typically snows in Zion, Illinois. Throughout October, in the average 0.7 snowfall days, it receives 0.16" (4mm) of snow.

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

The average day length in October in Zion is 11h and 2min.

What time are sunrise and sunset in October in Zion?

On the first day of October in Zion, Illinois, sunrise is at 6:49 am and sunset at 6:32 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 5:45 pm CDT.

How long on average sun shines in October in Zion?

The average sunshine duration in October in Zion is 5.6h.

How high is the UV index in October in Zion?

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

Average temperature in October - Zion, IL
  • Average high temperature in October: 58.3°F

The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (27.9°F).

  • Average low temperature in October: 46.9°F

The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).

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Average pressure in October
Zion, IL

Average pressure in October - Zion, IL
  • Average pressure in October: 30"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in October
Zion, IL

Average wind speed in October - Zion, IL
  • Average wind speed in October: 10.5mph

The windiest month (with the highest average wind speed) is January (11.9mph).
The calmest month (with the lowest average wind speed) is August (7.3mph).

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Average humidity in October
Zion, IL

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

The month with the highest relative humidity is January (83%).
The months with the lowest relative humidity are October and November (75%).

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Average rainfall in October
Zion, IL

Average rainfall in October - Zion, IL
  • Average rainfall in October: 1.89"

The wettest months (with the highest rainfall) are June and August (2.68").
The driest month (with the least rainfall) is December (0.91").

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Average rainfall days in October
Zion, IL

Average rainfall days in October - Zion, IL
  • Average rainfall days in October: 12.9 days

The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is February (5.2 days).

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Average snowfall in October
Zion, IL

Average snowfall in October - Zion, IL
  • Average snowfall in October: 0.16"

The month with the highest snowfall is February (2.6").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in October
Zion, IL

Average snowfall days in October - Zion, IL
  • Average snowfall days in October: 0.7 days

The month with the highest number of snowfall days is January (12.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in October / Average sunshine in October - Zion, IL
  • Average daylight in October: 11h and 0min

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 6min).

  • Average sunshine in October: 5h and 4min

The months with the most sunshine are July and August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

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Average sunshine days in October
Zion, IL

Average sunshine days in October - Zion, IL
  • Average sunshine days in October: 14.6 days

The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is July (10.8 days).

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Average UV index in October
Zion, IL

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

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

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Average cloud cover in October
Zion, IL

Average cloud cover in October - Zion, IL
  • Average cloud cover in October: 43

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 27).

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Average visibility in October
Zion, IL

Average visibility in October - Zion, 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).

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Zion, Illinois, USA

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