December weather forecast
Carbondale, IN

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Weather in December

December, the first month of the winter in Carbondale, is also a wintry month, with an average temperature fluctuating between 37.6°F (3.1°C) and 27.3°F (-2.6°C).

Temperature

The average high-temperature decreases in December, shifting from a chilly 48.7°F (9.3°C) in November to a cold 37.6°F (3.1°C). Throughout December, Carbondale's nights cool down to an average of 27.3°F (-2.6°C).

Humidity

The average relative humidity in December is 81%.

Rainfall

In Carbondale, Indiana, in December, during 10 rainfall days, 1.65" (42mm) of precipitation is typically accumulated. In Carbondale, during the entire year, the rain falls for 161.5 days and collects up to 27.91" (709mm) of precipitation.

Snowfall

Months with snowfall are January through April, November and December. In Carbondale, in December, snow falls for 8.5 days, with typically accumulated 2.24" (57mm) of snow. In Carbondale, during the entire year, snow falls for 37.6 days and aggregates up to 10.59" (269mm) of snow.

Daylight

With an average of 9h and 24min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 7:53 am and sunset at 5:23 pm. On the last day of the month, sunrise is at 8:12 am and sunset at 5:33 pm EST.

Sunshine

The average sunshine in December is 4.4h.

UV index

December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In December, the UV index of 1 transforms into the following advice:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. Around midday, solar radiation is most harmful; hence, exposure should be limited. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Updated: Jul 30, 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 December, in Carbondale, is 37.6°F (3.1°C), while the low-temperature averages to 27.3°F (-2.6°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in July is evaluated at 87.8°F (31°C).

What is the average humidity in December?

In December, the average relative humidity is 81%.

How much does it rain in December?

In Carbondale, in December, it is raining for 10 days, with typically 1.65" (42mm) of accumulated precipitation.

How many days does it snow in December?

In Carbondale, in December, snow falls for 8.5 days, with typically accumulated 2.24" (57mm) of snow.

What is the month with the shortest days?

With an average of 9h and 24min of daylight, December has the shortest days of the year.

What is the average length of the day in December?

In December, the average day length is 9h and 21min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:53 am and sunset at 5:23 pm. On the last day of the month, sunrise is at 8:12 am and sunset at 5:33 pm EST.

How many hours of sunshine does Carbondale have in December?

In December, the average sunshine duration is 4.4h.

When is the lowest UV index?

The month with the lowest UV index is December, with an average maximum UV index of 1.

What is the UV index reading in December?

In Carbondale, the average daily maximum UV index in December is 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's 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
Carbondale, IN

Average temperature in December - Carbondale, IN
  • Average high temperature in December: 37.6°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 (32°F).

  • Average low temperature in December: 27.3°F

The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).

Average pressure in December
Carbondale, IN

Average pressure in December - Carbondale, IN
  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in December
Carbondale, IN

Average wind speed in December - Carbondale, IN
  • Average wind speed in December: 9.6mph

The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).

Average humidity in December
Carbondale, IN

Average humidity in December - Carbondale, IN
  • Average humidity in December: 81%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (73%).

Average rainfall in December
Carbondale, IN

Average rainfall in December - Carbondale, IN
  • Average rainfall in December: 1.65"

The wettest month (with the highest rainfall) is April (3.39").
The driest month (with the least rainfall) is September (1.5").

Average rainfall days in December
Carbondale, IN

Average rainfall days in December - Carbondale, IN
  • Average rainfall days in December: 10 days

The month with the highest number of rainy days is May (19.4 days).
The month with the least rainy days is February (7.3 days).

Average snowfall in December
Carbondale, IN

Average snowfall in December - Carbondale, IN
  • Average snowfall in December: 2.24"

The month with the highest snowfall is February (3.27").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Carbondale, IN

Average snowfall days in December - Carbondale, IN
  • Average snowfall days in December: 8.5 days

The month with the highest number of snowfall days is January (11 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
Carbondale, IN

Average daylight in December / Average sunshine in December - Carbondale, IN
  • 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 24min).

  • Average sunshine in December: 4h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

Average sunshine days in December
Carbondale, IN

Average sunshine days in December - Carbondale, IN
  • Average sunshine days in December: 14.5 days

The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is July (9 days).

Average UV index in December
Carbondale, IN

Average UV index in December - Carbondale, IN
  • Average UV index in December: 1

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

Average cloud cover in December
Carbondale, IN

Average cloud cover in December - Carbondale, IN
  • Average cloud cover in December: 55

The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are June and August (Cloud cover 32).

Average visibility in December
Carbondale, IN

Average visibility in December - Carbondale, IN
  • 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).

Carbondale, Indiana, USA

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