October weather forecast
Wheaton, IL

Weather in October

October, the same as September, in Wheaton, Illinois, is a moderate autumn month, with temperature in the range of an average low of 45.5°F (7.5°C) and an average high of 60.4°F (15.8°C).

Temperature

In Wheaton, the average high-temperature in October drops from a moderately hot 73.6°F (23.1°C) in September to a moderate 60.4°F (15.8°C). The average low-temperature, is 45.5°F (7.5°C).

Humidity

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

Rainfall

In October, in Wheaton, the rain falls for 13.9 days. Throughout October, 2.83" (72mm) of precipitation is accumulated. In Wheaton, during the entire year, the rain falls for 164.3 days and collects up to 33.78" (858mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Wheaton. October is the first month it typically snows. Throughout October, in the average 0.5 snowfall days, it receives 0.35" (9mm) of snow. Throughout the year, in Wheaton, Illinois, there are 47 snowfall days, and 20.2" (513mm) of snow is accumulated.

Daylight

In October, the average length of the day is 11h and 4min.
On the first day of October in Wheaton, sunrise is at 6:49 am and sunset at 6:34 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 5:48 pm CDT.

Sunshine

In Wheaton, the average sunshine in October is 5.6h.

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 unsafe exposure to UV radiation for ordinary individuals.
Note: In October, the average maximum UV index of 2 translate into the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in October in Wheaton?

In October, the average high-temperature is 60.4°F (15.8°C), and the average low-temperature is 45.5°F (7.5°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in July is evaluated at 87.8°F (31°C).

What is the least humid month in Wheaton?

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

What is the average humidity in October in Wheaton?

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

How many days does it rain in October in Wheaton?

In Wheaton, Illinois, in October, it is raining for 13.9 days, with typically 2.83" (72mm) of accumulated precipitation.

When does it start snowing in Wheaton?

October is the first month it typically snows. Throughout October, in the average 0.5 snowfall days, it receives 0.35" (9mm) of snow.

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

The average day length in October in Wheaton, Illinois, is 11h and 4min.

When is the sunrise / sunset in October in Wheaton?

In October, on the first day of the month, sunrise is at 6:49 am and sunset at 6:34 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 5:48 pm CDT.

How many hours of sunshine does Wheaton have in October?

In October, the average sunshine duration is 5.6h.

What is the UV index intensity in October in Wheaton?

The average daily maximum UV index in October in Wheaton, Illinois, is 2. A UV Index of 2, and less, symbolizes a minimal hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
Wheaton, IL

Average temperature in October - Wheaton, IL
  • Average high temperature in October: 60.4°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (28°F).

  • Average low temperature in October: 45.5°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 (16.7°F).

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Average pressure in October
Wheaton, IL

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

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in October
Wheaton, IL

Average wind speed in October - Wheaton, IL
  • Average wind speed in October: 8.7mph

The windiest month (with the highest average wind speed) is January (9.8mph).
The calmest month (with the lowest average wind speed) is August (6mph).

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Average humidity in October
Wheaton, IL

Average humidity in October - Wheaton, IL
  • Average humidity in October: 73%

The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is October (73%).

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Average rainfall in October
Wheaton, IL

Average rainfall in October - Wheaton, IL
  • Average rainfall in October: 2.83"

The wettest month (with the highest rainfall) is May (4.45").
The driest months (with the least rainfall) are November and December (1.65").

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Average rainfall days in October
Wheaton, IL

Average rainfall days in October - Wheaton, IL
  • Average rainfall days in October: 13.9 days

The month with the highest number of rainy days is July (20.1 days).
The month with the least rainy days is February (5.8 days).

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Average snowfall in October
Wheaton, IL

Average snowfall in October - Wheaton, IL
  • Average snowfall in October: 0.35"

The month with the highest snowfall is January (5.87").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in October
Wheaton, IL

Average snowfall days in October - Wheaton, IL
  • Average snowfall days in October: 0.5 days

The month with the highest number of snowfall days is January (13.1 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
Wheaton, IL

Average daylight in October / Average sunshine in October - Wheaton, IL
  • Average daylight in October: 11h and 4min

The month with the longest days is June (Average daylight: 15h and 10min).
The month with the shortest days is December (Average daylight: 9h and 11min).

  • Average sunshine in October: 5h and 36min

The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

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Average sunshine days in October
Wheaton, IL

Average sunshine days in October - Wheaton, IL
  • Average sunshine days in October: 13.8 days

The month with the most sunshine days is November (16.1 days).
The month with the least sunshine days is July (8.2 days).

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Average UV index in October
Wheaton, IL

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

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).

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Average cloud cover in October
Wheaton, IL

Average cloud cover in October - Wheaton, IL
  • Average cloud cover in October: 42

The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are August and September (Cloud cover 32).

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Average visibility in October
Wheaton, IL

Average visibility in October - Wheaton, IL
  • Average visibility in October: 6mi

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

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