October weather forecast
Clinton, IL

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Weather in October

October, the same as September, is another comfortable autumn month in Clinton, Illinois, with an average temperature varying between 47.3°F (8.5°C) and 63.1°F (17.3°C).

Temperature

The decrease of average high-temperatures is mild in October, with a decline from a warm 76.3°F (24.6°C) in September to a comfortable 63.1°F (17.3°C). An average low-temperature of 47.3°F (8.5°C) is recorded in the month of October in Clinton.

Humidity

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

Rainfall

In Clinton, during October, the rain falls for 12 days and regularly aggregates up to 2.76" (70mm) of precipitation. Throughout the year, in Clinton, there are 165.4 rainfall days, and 33.78" (858mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Clinton are January through April, October through December. October is the first month it typically snows in Clinton. Throughout October, in the average 0.3 snowfall days, it receives 0.08" (2mm) of snow. In Clinton, during the entire year, snow falls for 36.9 days and aggregates up to 14.76" (375mm) of snow.

Daylight

The average length of the day in October in Clinton is 11h and 8min.
On the first day of the month, sunrise is at 6:52 am and sunset at 6:37 pm. On the last day of October, in Clinton, sunrise is at 7:24 am and sunset at 5:53 pm CDT.

Sunshine

In Clinton, the average sunshine in October is 6h.

UV index

In Clinton, the average daily maximum UV index in October is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the average person.
Note: During October, 3 as the daily maximum UV index converts into the following advice:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
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Frequently asked questions

What are October temperatures in Clinton?

During October, Clinton experiences an average high-temperature of 63.1°F (17.3°C) and a low-temperature of 47.3°F (8.5°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in August is evaluated at 87.8°F (31°C).

What is the least humid month in Clinton?

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

What is the average humidity in October in Clinton?

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

How many days does it rain in October in Clinton?

In Clinton, Illinois, during October, the rain falls for 12 days and regularly aggregates up to 2.76" (70mm) of precipitation.

When does it start snowing in Clinton?

October is the first month it typically snows in Clinton. Throughout October, in the average 0.3 snowfall days, it receives 0.08" (2mm) of snow.

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

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

When is the sunrise / sunset in October in Clinton?

In October, on the first day of the month, sunrise is at 6:52 am and sunset at 6:37 pm. On the last day of the month, in Clinton, Illinois, sunrise is at 7:24 am and sunset at 5:53 pm CDT.

How long on average sun shines in October in Clinton?

The average sunshine duration in October in Clinton is 6h.

What is the UV index reading in October in Clinton?

The average daily maximum UV index in October 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
Clinton, IL

Average temperature in October - Clinton, IL
  • Average high temperature in October: 63.1°F

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (31.8°F).

  • Average low temperature in October: 47.3°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 (19.9°F).

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Average pressure in October
Clinton, IL

Average pressure in October - Clinton, 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).

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Average wind speed in October
Clinton, IL

Average wind speed in October - Clinton, IL
  • Average wind speed in October: 9.6mph

The windiest month (with the highest average wind speed) is January (10.8mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).

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Average humidity in October
Clinton, IL

Average humidity in October - Clinton, 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%).

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Average rainfall in October
Clinton, IL

Average rainfall in October - Clinton, IL
  • Average rainfall in October: 2.76"

The wettest month (with the highest rainfall) is May (4.37").
The driest month (with the least rainfall) is December (1.89").

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Average rainfall days in October
Clinton, IL

Average rainfall days in October - Clinton, IL
  • Average rainfall days in October: 12 days

The months with the highest number of rainy days are May and July (20.2 days).
The month with the least rainy days is February (6.8 days).

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Average snowfall in October
Clinton, IL

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

The month with the highest snowfall is January (4.49").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in October
Clinton, IL

Average snowfall days in October - Clinton, IL
  • Average snowfall days in October: 0.3 days

The month with the highest number of snowfall days is January (12 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
Clinton, IL

Average daylight in October / Average sunshine in October - Clinton, 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 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

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Average sunshine days in October
Clinton, IL

Average sunshine days in October - Clinton, IL
  • Average sunshine days in October: 16.5 days

The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is July (7.3 days).

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Average UV index in October
Clinton, IL

Average UV index in October - Clinton, 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
Clinton, IL

Average cloud cover in October - Clinton, IL
  • Average cloud cover in October: 37

The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are August and September (Cloud cover 31).

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Average visibility in October
Clinton, IL

Average visibility in October - Clinton, 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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Clinton, Illinois, USA

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