December weather forecast
Kankakee, IL

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Weather in December

The first month of the winter, December, is still a cold month in Kankakee, Illinois, with an average temperature varying between 36.1°F (2.3°C) and 25.9°F (-3.4°C).

Temperature

During the transition into December, Kankakee observes a decrease in the average high-temperature, falling from a chilly 47.3°F (8.5°C) in November to an icy 36.1°F (2.3°C). The temperature in Kankakee lowers to an average of 25.9°F (-3.4°C) during December nights.

Humidity

In Kankakee, the average relative humidity in December is 81%.

Rainfall

In Kankakee, in December, it is raining for 3.8 days, with typically 0.35" (9mm) of accumulated precipitation. Throughout the year, there are 80.5 rainfall days, and 6.22" (158mm) of precipitation is accumulated.

Snowfall

January through April, November and December are months with snowfall in Kankakee. In Kankakee, during December, snow falls for 4.5 days and regularly aggregates up to 0.16" (4mm) of snow. Throughout the year, in Kankakee, there are 20.5 snowfall days, and 2.17" (55mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 18min of daylight.
On the first day of December, sunrise is at 6:57 am and sunset at 4:23 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 4:32 pm CST.

Sunshine

The average sunshine in December in Kankakee is 4.2h.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum UV index of 1 during December translates into these guidelines:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Opt for tightly woven and loose clothing to enhance protection from the Sun. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
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Frequently asked questions

How cold is December in Kankakee?

The high-temperature, in December, in Kankakee, is 36.1°F (2.3°C), while the low-temperature averages to 25.9°F (-3.4°C). In July, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is appraised at 87.8°F (31°C).

What is the average humidity in December in Kankakee?

The average relative humidity in December in Kankakee is 81%.

How many days does it rain in December in Kankakee?

In Kankakee, in December, during 3.8 rainfall days, 0.35" (9mm) of precipitation is typically accumulated.

How much does it snow in Kankakee in December?

In Kankakee, in December, snow falls for 4.5 days, with typically accumulated 0.16" (4mm) of snow.

What is the month with the shortest days in Kankakee?

The month with the shortest days in Kankakee, Illinois, is December, with an average of 9h and 18min of daylight.

How many hours of daylight does Kankakee have in December?

The average day length in December in Kankakee, Illinois, is 9h and 16min.

When are sunrise and sunset in December in Kankakee?

On the first day of December in Kankakee, sunrise is at 6:57 am and sunset at 4:23 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 4:32 pm CST.

How many hours of sunshine does Kankakee have in December?

The average sunshine duration in December in Kankakee, Illinois, is 4.2h.

What are the months with the lowest UV index in Kankakee?

January and December, with an average maximum UV index of 1, are months with the lowest UV index in Kankakee, Illinois.

What is the UV index reading in December in Kankakee?

In Kankakee, Illinois, the average daily maximum UV index in December is 1. A UV Index estimate of 2, and below, represents a minimal hazard to health from 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
Kankakee, IL

Average temperature in December - Kankakee, IL
  • Average high temperature in December: 36.1°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (30°F).

  • Average low temperature in December: 25.9°F

The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).

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Average pressure in December
Kankakee, IL

Average pressure in December - Kankakee, 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
Kankakee, IL

Average wind speed in December - Kankakee, IL
  • Average wind speed in December: 9.5mph

The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).

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Average humidity in December
Kankakee, IL

Average humidity in December - Kankakee, IL
  • Average humidity in December: 81%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in December
Kankakee, IL

Average rainfall in December - Kankakee, IL
  • Average rainfall in December: 0.35"

The wettest month (with the highest rainfall) is May (1.06").
The driest month (with the least rainfall) is November (0.28").

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Average rainfall days in December
Kankakee, IL

Average rainfall days in December - Kankakee, IL
  • Average rainfall days in December: 3.8 days

The month with the highest number of rainy days is May (11.4 days).
The month with the least rainy days is January (2.3 days).

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Average snowfall in December
Kankakee, IL

Average snowfall in December - Kankakee, IL
  • Average snowfall in December: 0.16"

The month with the highest snowfall is January (0.75").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
Kankakee, IL

Average snowfall days in December - Kankakee, IL
  • Average snowfall days in December: 4.5 days

The month with the highest number of snowfall days is January (5.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Kankakee, IL
  • Average daylight in December: 9h and 2min

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 18min).

  • Average sunshine in December: 4h and 1min

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 48min).

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Average sunshine days in December
Kankakee, IL

Average sunshine days in December - Kankakee, IL
  • Average sunshine days in December: 24.4 days

The month with the most sunshine days is January (24.8 days).
The month with the least sunshine days is June (15.7 days).

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Average UV index in December
Kankakee, IL

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

The months with the highest UV index are June and July (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 December
Kankakee, IL

Average cloud cover in December - Kankakee, 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
Kankakee, IL

Average visibility in December - Kankakee, IL
  • Average visibility in December: 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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Kankakee, Illinois, USA

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