December weather forecast
Chadwick, IL

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Weather in December

The first month of the winter, December, is also a wintry month in Chadwick, Illinois, with an average temperature varying between 22.5°F (-5.3°C) and 32.5°F (0.3°C).

Temperature

During the transition into December, Chadwick observes a decrease in the average high-temperature, falling from a frosty 45°F (7.2°C) in November to a cold 32.5°F (0.3°C). In the month of December, the temperature generally rests at an average low of 22.5°F (-5.3°C).

Humidity

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

Rainfall

In Chadwick, in December, during 5.9 rainfall days, 0.79" (20mm) of precipitation is typically accumulated. Throughout the year, in Chadwick, there are 123.8 rainfall days, and 17.05" (433mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall. In December, in Chadwick, it is snowing for 8.4 days. Throughout December, 1.38" (35mm) of snow is accumulated. Throughout the year, there are 37.4 snowfall days, and 8.11" (206mm) of snow is accumulated.

Daylight

With an average of 9h and 12min of daylight, December has the shortest days of the year in Chadwick.
On the first day of the month, sunrise is at 7:08 am and sunset at 4:28 pm. On the last day of December, in Chadwick, sunrise is at 7:27 am and sunset at 4:38 pm CST.

Sunshine

In Chadwick, the average sunshine in December is 4h.

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 minimal health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum UV index of 1 during December translates into these guidelines:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Enhance your sun protection with tightly woven, yet airy clothing. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
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Frequently asked questions

How cold is December in Chadwick?

Chadwick in December has an average high-temperature of 32.5°F (0.3°C) and an average low-temperature of 22.5°F (-5.3°C).

What is the average humidity in December in Chadwick?

The average relative humidity in December in Chadwick is 82%.

How many days does it rain in December in Chadwick?

In Chadwick, in December, it is raining for 5.9 days, with typically 0.79" (20mm) of accumulated precipitation.

How much does it snow in Chadwick in December?

In Chadwick, during December, snow falls for 8.4 days and regularly aggregates up to 1.38" (35mm) of snow.

What is the month with the shortest days in Chadwick?

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

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

The average day length in December in Chadwick is 9h and 11min.

What time are sunrise and sunset in December in Chadwick?

In December, on the first day of the month, sunrise is at 7:08 am and sunset at 4:28 pm. On the last day of the month, in Chadwick, Illinois, sunrise is at 7:27 am and sunset at 4:38 pm CST.

How long on average sun shines in December in Chadwick?

In Chadwick, Illinois, the average sunshine duration in December is 4h.

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

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

What is the UV index intensity in December in Chadwick?

In Chadwick, the average daily maximum UV index in December is 1. A UV Index of 2, and less, symbolizes a low health risk 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 December
Chadwick, IL

Average temperature in December - Chadwick, IL
  • Average high temperature in December: 32.5°F

The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (26.1°F).

  • Average low temperature in December: 22.5°F

The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).

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Average pressure in December
Chadwick, IL

Average pressure in December - Chadwick, 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 (29.91"Hg).

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Average wind speed in December
Chadwick, IL

Average wind speed in December - Chadwick, IL
  • Average wind speed in December: 9.4mph

The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

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Average humidity in December
Chadwick, IL

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

The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (74%).

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Average rainfall in December
Chadwick, IL

Average rainfall in December - Chadwick, IL
  • Average rainfall in December: 0.79"

The wettest month (with the highest rainfall) is May (2.52").
The driest months (with the least rainfall) are January and February (0.67").

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Average rainfall days in December
Chadwick, IL

Average rainfall days in December - Chadwick, IL
  • Average rainfall days in December: 5.9 days

The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is February (3.9 days).

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Average snowfall in December
Chadwick, IL

Average snowfall in December - Chadwick, IL
  • Average snowfall in December: 1.38"

The month with the highest snowfall is January (2.48").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in December
Chadwick, IL

Average snowfall days in December - Chadwick, IL
  • Average snowfall days in December: 8.4 days

The month with the highest number of snowfall days is January (10.6 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
Chadwick, IL

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

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 12min).

  • Average sunshine in December: 4h and 0min

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

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Average sunshine days in December
Chadwick, IL

Average sunshine days in December - Chadwick, IL
  • Average sunshine days in December: 18.6 days

The month with the most sunshine days is November (19.9 days).
The month with the least sunshine days is June (11.1 days).

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Average UV index in December
Chadwick, IL

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

The month with the highest UV index is 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
Chadwick, IL

Average cloud cover in December - Chadwick, IL
  • Average cloud cover in December: 58

The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is September (Cloud cover 32).

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Average visibility in December
Chadwick, IL

Average visibility in December - Chadwick, 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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Chadwick, Illinois, USA

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