December weather forecast
Christopher, IL

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Weather in December

December, the first month of the winter in Christopher, is also a frosty month, with an average temperature fluctuating between 43.5°F (6.4°C) and 31.3°F (-0.4°C).

Temperature

Observing a mild shift, the average high-temperature during December reduces from November's fresh 53.2°F (11.8°C) to a frosty 43.5°F (6.4°C). In December, Christopher's temperature tends to fall to an average low of 31.3°F (-0.4°C) during the night.

Humidity

In Christopher, the average relative humidity in December is 77%.

Rainfall

In Christopher, in December, it is raining for 7.8 days, with typically 1.02" (26mm) of accumulated precipitation. In Christopher, during the entire year, the rain falls for 122.7 days and collects up to 18.03" (458mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall. In Christopher, Illinois, during December, snow falls for 2.8 days and regularly aggregates up to 0.63" (16mm) of snow. Throughout the year, there are 14.5 snowfall days, and 2.64" (67mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 36min of daylight.
On the first day of December, sunrise is at 6:53 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 4:47 pm CST.

Sunshine

In December, the average sunshine is 4.7h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index, 2 in December, converts into the following recommendations:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. To guard against the harmful effects of the Sun, minimize exposure during midday. Boost your sun resistance with garments that are densely woven yet spacious. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Updated: Jul 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold does it get in December?

The high-temperature in Christopher, Illinois, during December is 43.5°F (6.4°C) and the low-temperature is 31.3°F (-0.4°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in August is estimated at 96.8°F (36°C).

What is the average humidity in December?

The average relative humidity in December is 77%.

How much does it rain in December?

In December, the rain falls for 7.8 days. Throughout December, 1.02" (26mm) of precipitation is accumulated.

How many days does it snow in December?

In Christopher, in December, snow falls for 2.8 days, with typically accumulated 0.63" (16mm) of snow.

What is the month with the shortest days in Christopher?

December has the shortest days of the year, with an average of 9h and 36min of daylight.

How many hours of daylight does Christopher have in December?

In Christopher, the average day length in December is 9h and 35min.

When is the sunrise / sunset in December in Christopher?

In December, on the first day of the month, sunrise is at 6:53 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 4:47 pm CST.

How long on average sun shines in December?

The average sunshine duration in December in Christopher is 4.7h.

What is the month with the lowest UV index?

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the UV index reading in December?

In December, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a low health threat 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
Christopher, IL

Average temperature in December - Christopher, IL
  • Average high temperature in December: 43.5°F

The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in December: 31.3°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).

Average pressure in December
Christopher, IL

Average pressure in December - Christopher, IL
  • Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in December
Christopher, IL

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

The windiest months (with the highest average wind speed) are January and February (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.9mph).

Average humidity in December
Christopher, IL

Average humidity in December - Christopher, IL
  • Average humidity in December: 77%

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (70%).

Average rainfall in December
Christopher, IL

Average rainfall in December - Christopher, IL
  • Average rainfall in December: 1.02"

The wettest month (with the highest rainfall) is April (2.56").
The driest month (with the least rainfall) is September (0.98").

Average rainfall days in December
Christopher, IL

Average rainfall days in December - Christopher, IL
  • Average rainfall days in December: 7.8 days

The month with the highest number of rainy days is May (13.9 days).
The month with the least rainy days is January (7.3 days).

Average snowfall in December
Christopher, IL

Average snowfall in December - Christopher, IL
  • Average snowfall in December: 0.63"

The month with the highest snowfall is January (0.71").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Christopher, IL

Average snowfall days in December - Christopher, IL
  • Average snowfall days in December: 2.8 days

The month with the highest number of snowfall days is January (4.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Christopher, IL
  • Average daylight in December: 9h and 4min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in December: 4h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).

Average sunshine days in December
Christopher, IL

Average sunshine days in December - Christopher, IL
  • Average sunshine days in December: 20.3 days

The month with the most sunshine days is October (21.3 days).
The month with the least sunshine days is May (13.8 days).

Average UV index in December
Christopher, IL

Average UV index in December - Christopher, IL
  • Average UV index in December: 2

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in December
Christopher, IL

Average cloud cover in December - Christopher, IL
  • Average cloud cover in December: 49

The months with the most cloud cover are January and February (Cloud cover 51).
The months with the least cloud cover are June and August (Cloud cover 28).

Average visibility in December
Christopher, IL

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

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

Christopher, Illinois, USA

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