December weather forecast
Carman, IL

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Weather in December

December, the first month of the winter in Carman, is also a wintry month, with an average temperature ranging between min 25°F (-3.9°C) and max 36.3°F (2.4°C).

Temperature

Carman in December undergoes a mild reduction in the average high-temperature, shifting from November's chilly 48.6°F (9.2°C) to a wintry 36.3°F (2.4°C). In the month of December, Carman witnesses a consistent average low-temperature of 25°F (-3.9°C).

Humidity

The average relative humidity in December is 79%.

Rainfall

December is the month with the least rainfall. Rain falls for 7.2 days and accumulates 1.3" (33mm) of precipitation.

Snowfall

Months with snowfall are January through April, October through December. In December, it is snowing for 5.9 days. Throughout December, 1.38" (35mm) of snow is accumulated. In Carman, during the entire year, snow falls for 29.5 days and aggregates up to 11.77" (299mm) of snow.

Daylight

With an average of 9h and 18min of daylight, December has the shortest days of the year in Carman.
On the first day of the month, sunrise is at 7:09 am and sunset at 4:37 pm. On the last day of December, sunrise is at 7:28 am and sunset at 4:46 pm CST.

Sunshine

In Carman, the average sunshine in December is 4.7h.

UV index

In December, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: A typical high UV index of 2 in December suggests the following recommendations:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Experience reduced UV exposure by about half when donning a wide-brim hat. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Updated: Aug 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December in Carman?

An average high-temperature, in December, in Carman, is 36.3°F (2.4°C) and the average low-temperature is 25°F (-3.9°C). The average heat index (a.k.a. 'real feel', 'feels like'), which combines air temperature and relative humidity, in August is calculated to be 87.8°F (31°C).

What is the average humidity in December?

In Carman, the average relative humidity in December is 79%.

What is the driest month in Carman?

December is the month with the least rainfall. Rain falls for 7.2 days and accumulates 1.3" (33mm) of precipitation.

How much does it rain in December?

In Carman, in December, it is raining for 7.2 days, with typically 1.3" (33mm) of accumulated precipitation.

How many days does it snow in December?

In Carman, in December, snow falls for 5.9 days, with typically accumulated 1.38" (35mm) of snow.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 18min of daylight.

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

In December, the average day length is 9h and 19min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:09 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 4:46 pm CST.

How long on average sun shines in December?

In December, the average sunshine duration is 4.7h.

What is the UV index intensity in December?

In Carman, the average daily maximum UV index in December 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
Carman, IL

Average temperature in December - Carman, IL
  • Average high temperature in December: 36.3°F

The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (30°F).

  • Average low temperature in December: 25°F

The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (18°F).

Average pressure in December
Carman, IL

Average pressure in December - Carman, 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).

Average wind speed in December
Carman, IL

Average wind speed in December - Carman, IL
  • Average wind speed in December: 10mph

The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.7mph).

Average humidity in December
Carman, IL

Average humidity in December - Carman, IL
  • Average humidity in December: 79%

The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (70%).

Average rainfall in December
Carman, IL

Average rainfall in December - Carman, IL
  • Average rainfall in December: 1.3"

The wettest month (with the highest rainfall) is May (3.94").
The driest month (with the least rainfall) is December (1.3").

Average rainfall days in December
Carman, IL

Average rainfall days in December - Carman, IL
  • Average rainfall days in December: 7.2 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (5.2 days).

Average snowfall in December
Carman, IL

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

The month with the highest snowfall is January (4.25").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Carman, IL

Average snowfall days in December - Carman, IL
  • Average snowfall days in December: 5.9 days

The month with the highest number of snowfall days is January (9.8 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
Carman, IL

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

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in December: 4h and 4min

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

Average sunshine days in December
Carman, IL

Average sunshine days in December - Carman, IL
  • Average sunshine days in December: 19 days

The months with the most sunshine days are October and November (19.3 days).
The month with the least sunshine days is June (10.3 days).

Average UV index in December
Carman, IL

Average UV index in December - Carman, 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).

Average cloud cover in December
Carman, IL

Average cloud cover in December - Carman, IL
  • Average cloud cover in December: 51

The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July, August and September (Cloud cover 29).

Average visibility in December
Carman, IL

Average visibility in December - Carman, 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).

Carman, Illinois, USA

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