December weather forecast
Shale City, IL

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Weather in December

December, the first month of the winter in Shale City, is still a cold month, with temperature in the range of an average low of 24.4°F (-4.2°C) and an average high of 35.1°F (1.7°C).

Temperature

December ushers in a slight temperature change, with average high-temperatures reducing from November's chilly 47.3°F (8.5°C) to an icy 35.1°F (1.7°C). Shale City temperatures generally rest at a low of 24.4°F (-4.2°C) during the December nights.

Humidity

In December, the average relative humidity is 81%.

Rainfall

December is the month with the least rainfall in Shale City. Rain falls for 5.5 days and accumulates 0.67" (17mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall. In December, in Shale City, it is snowing for 6.1 days. Throughout December, 0.98" (25mm) of snow is accumulated. In Shale City, during the entire year, snow falls for 26.3 days and aggregates up to 7.64" (194mm) of snow.

Daylight

With an average of 9h and 18min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:09 am and sunset at 4:34 pm. On the last day of December, sunrise is at 7:27 am and sunset at 4:43 pm CST.

Sunshine

In Shale City, the average sunshine in December is 4.5h.

UV index

In December, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the average person.
Note: A maximum high UV index of 2 in December translates into the following recommendations:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
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Frequently asked questions

How cold is it in Shale City in December?

In December, the average high-temperature and low-temperature are 35.1°F (1.7°C) and 24.4°F (-4.2°C) respectively. The average heat index (a.k.a. 'feels like', 'real feel'), which combines relative humidity and air temperature, in August is computed to be 86°F (30°C).

What is the average humidity in December in Shale City?

The average relative humidity in December in Shale City, Illinois, is 81%.

What is the driest month in Shale City?

The month with the least rainfall in Shale City is December, when the rain falls for 5.5 days and typically collects 0.67" (17mm) of precipitation.

How much does it rain in Shale City in December?

In Shale City, Illinois, in December, during 5.5 rainfall days, 0.67" (17mm) of precipitation is typically accumulated.

How many days does it snow in December in Shale City?

In Shale City, in December, during 6.1 snowfall days, 0.98" (25mm) of snow is typically accumulated.

What is the month with the shortest days in Shale City?

With an average of 9h and 18min of daylight, December has the shortest days of the year in Shale City, Illinois.

How many hours of daylight does Shale City have in December?

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

When is the sunrise / sunset in December in Shale City?

In December, on the first day of the month, sunrise is at 7:09 am and sunset at 4:34 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 4:43 pm CST.

How many hours of sunshine does Shale City have in December?

In December, the average sunshine duration in Shale City, Illinois, is 4.5h.

What is the UV index reading in December in Shale City?

The average daily maximum UV index in December in Shale City is 2. A UV Index reading of 2, and below, represents a minimal hazard to health 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
Shale City, IL

Average temperature in December - Shale City, IL
  • Average high temperature in December: 35.1°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (28.8°F).

  • Average low temperature in December: 24.4°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).

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Average pressure in December
Shale City, IL

Average pressure in December - Shale City, IL
  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed in December
Shale City, IL

Average wind speed in December - Shale City, IL
  • Average wind speed in December: 9.9mph

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).

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Average humidity in December
Shale City, IL

Average humidity in December - Shale City, 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 (71%).

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Average rainfall in December
Shale City, IL

Average rainfall in December - Shale City, IL
  • Average rainfall in December: 0.67"

The wettest month (with the highest rainfall) is May (2.76").
The driest month (with the least rainfall) is December (0.67").

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Average rainfall days in December
Shale City, IL

Average rainfall days in December - Shale City, IL
  • Average rainfall days in December: 5.5 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (4.1 days).

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Average snowfall in December
Shale City, IL

Average snowfall in December - Shale City, IL
  • Average snowfall in December: 0.98"

The month with the highest snowfall is January (2.4").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in December
Shale City, IL

Average snowfall days in December - Shale City, IL
  • Average snowfall days in December: 6.1 days

The month with the highest number of snowfall days is January (7.8 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
Shale City, IL

Average daylight in December / Average sunshine in December - Shale City, 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 3min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

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Average sunshine days in December
Shale City, IL

Average sunshine days in December - Shale City, IL
  • Average sunshine days in December: 20.2 days

The month with the most sunshine days is January (20.3 days).
The month with the least sunshine days is May (12.1 days).

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Average UV index in December
Shale City, IL

Average UV index in December - Shale City, IL
  • Average UV index in December: 2

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

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Average cloud cover in December
Shale City, IL

Average cloud cover in December - Shale City, IL
  • Average cloud cover in December: 53

The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are August and September (Cloud cover 29).

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Average visibility in December
Shale City, IL

Average visibility in December - Shale City, IL
  • Average visibility in December: 6mi

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

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Shale City, Illinois, USA

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