December weather forecast
Channahon, IL

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Weather in December

December, the first month of the winter in Channahon, is still a cold month, with temperature in the range of an average low of 25.2°F (-3.8°C) and an average high of 35.6°F (2°C).

Temperature

December brings a decrease in the average high-temperature, shifting from a frosty 47.1°F (8.4°C) in November to an icy 35.6°F (2°C). Throughout December, Channahon registers a consistent average low-temperature of 25.2°F (-3.8°C).

Humidity

In Channahon, the average relative humidity in December is 82%.

Rainfall

In December, the rain falls for 8.5 days. Throughout December, 1.69" (43mm) of precipitation is accumulated. In Channahon, during the entire year, the rain falls for 154.5 days and collects up to 32.68" (830mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall. In Channahon, in December, snow falls for 7.6 days, with typically accumulated 2.36" (60mm) of snow. In Channahon, Illinois, during the entire year, snow falls for 36.3 days and aggregates up to 14.53" (369mm) of snow.

Daylight

With an average of 9h and 12min of daylight, December has the shortest days of the year in Channahon.
On the first day of December in Channahon, sunrise is at 7:00 am and sunset at 4:24 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 4:33 pm CST.

Sunshine

In December, the average sunshine is 4.2h.

UV index

With an average maximum UV index of 1, December is the month with the lowest UV index in Channahon. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: A maximum daily UV index of 1 during December morphs into the following directions:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
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Frequently asked questions

How cold is it in Channahon in December?

In December, in Channahon, the average high-temperature is 35.6°F (2°C), and the average low-temperature is 25.2°F (-3.8°C). In July, the average heat index (a.k.a. 'real feel', 'feels like'), which factors the actual air temperature with the relative humidity, is estimated at 87.8°F (31°C).

What is the average humidity in December in Channahon?

The average relative humidity in December in Channahon, Illinois, is 82%.

How many days does it rain in December in Channahon?

In Channahon, during December, the rain falls for 8.5 days and regularly aggregates up to 1.69" (43mm) of precipitation.

How much does it snow in Channahon in December?

In Channahon, in December, during 7.6 snowfall days, 2.36" (60mm) of snow is typically accumulated.

What is the month with the shortest days in Channahon?

December has the shortest days of the year in Channahon, Illinois, with an average of 9h and 12min of daylight.

What is the average length of the day in December in Channahon?

The average day length in December in Channahon, Illinois, is 9h and 14min.

What time are sunrise and sunset in December in Channahon?

On the first day of December in Channahon, sunrise is at 7:00 am and sunset at 4:24 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 4:33 pm CST.

How long on average sun shines in December in Channahon?

In December, the average sunshine duration in Channahon, Illinois, is 4.2h.

What is the month with the lowest UV index in Channahon?

December is the month with the lowest UV index in Channahon, with an average maximum UV index of 1.

How high is the UV index in December in Channahon?

In Channahon, the average daily maximum UV index in December is 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to Sun's UV rays.
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 December
Channahon, IL

Average temperature in December - Channahon, IL
  • Average high temperature in December: 35.6°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 (29.5°F).

  • Average low temperature in December: 25.2°F

The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).

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Average pressure in December
Channahon, IL

Average pressure in December - Channahon, IL
  • Average pressure in December: 30.1"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in December
Channahon, IL

Average wind speed in December - Channahon, IL
  • Average wind speed in December: 9mph

The windiest month (with the highest average wind speed) is April (9.8mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).

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Average humidity in December
Channahon, IL

Average humidity in December - Channahon, IL
  • Average humidity in December: 82%

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

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Average rainfall in December
Channahon, IL

Average rainfall in December - Channahon, IL
  • Average rainfall in December: 1.69"

The wettest month (with the highest rainfall) is May (4.45").
The driest month (with the least rainfall) is February (1.61").

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Average rainfall days in December
Channahon, IL

Average rainfall days in December - Channahon, IL
  • Average rainfall days in December: 8.5 days

The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is February (5.9 days).

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Average snowfall in December
Channahon, IL

Average snowfall in December - Channahon, IL
  • Average snowfall in December: 2.36"

The month with the highest snowfall is January (4.17").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
Channahon, IL

Average snowfall days in December - Channahon, IL
  • Average snowfall days in December: 7.6 days

The month with the highest number of snowfall days is January (11.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Channahon, IL

Average daylight in December / Average sunshine in December - Channahon, IL
  • Average daylight in December: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in December: 4h and 1min

The months with the most sunshine are June, July and August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

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Average sunshine days in December
Channahon, IL

Average sunshine days in December - Channahon, IL
  • Average sunshine days in December: 15.8 days

The month with the most sunshine days is November (18 days).
The month with the least sunshine days is June (9.8 days).

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Average UV index in December
Channahon, IL

Average UV index in December - Channahon, IL
  • Average UV index in December: 1

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

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Average cloud cover in December
Channahon, IL

Average cloud cover in December - Channahon, IL
  • Average cloud cover in December: 57

The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 33).

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Average visibility in December
Channahon, IL

Average visibility in December - Channahon, IL
  • Average visibility in December: 6mi

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

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Channahon, Illinois, USA

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