December weather forecast
America, IN

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Weather in December

December, the first month of the winter in America, is also a wintry month, with an average temperature fluctuating between 26.6°F (-3°C) and 36.5°F (2.5°C).

Temperature

The start of December comes with a reduction in the average high-temperature, receding from a chilly 47.5°F (8.6°C) in November to an icy 36.5°F (2.5°C). December brings an average low-temperature of 26.6°F (-3°C) to America.

Humidity

January, February, July, August and December, with an average relative humidity of 83%, are the most humid months.

Rainfall

In America, during December, the rain falls for 9.3 days and regularly aggregates up to 1.38" (35mm) of precipitation. In America, during the entire year, the rain falls for 157.1 days and collects up to 23.27" (591mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In America, in December, during 10.1 snowfall days, 1.77" (45mm) of snow is typically accumulated. Throughout the year, in America, there are 47.4 snowfall days, and 10.39" (264mm) of snow is accumulated.

Daylight

The month with the shortest days in America is December, with an average of 9h and 18min of daylight.
On the first day of December, sunrise is at 7:48 am and sunset at 5:16 pm. On the last day of the month, sunrise is at 8:06 am and sunset at 5:25 pm EST.

Sunshine

The average sunshine in December in America is 4.1h.

UV index

The month with the lowest UV index in America is December, 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 average individuals.
Note: In December, the UV index of 1 transforms into the following advice:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Experience reduced UV exposure by about half when donning a wide-brim hat. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December in America?

The high-temperature, in December, in America, is 36.5°F (2.5°C), while the low-temperature averages to 26.6°F (-3°C).

What are the most humid months in America?

January, February, July, August and December, with an average relative humidity of 83%, are most humid months.

What is the average humidity in December in America?

The average relative humidity in December in America is 83%.

How much does it rain in America in December?

In America, Indiana, in December, during 9.3 rainfall days, 1.38" (35mm) of precipitation is typically accumulated.

How much does it snow in America in December?

In America, Indiana, in December, during 10.1 snowfall days, 1.77" (45mm) of snow is typically accumulated.

What is the month with the shortest days in America?

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

How many hours of daylight does America have in December?

The average day length in December in America is 9h and 19min.

When are sunrise and sunset in December in America?

In December, on the first day of the month, sunrise is at 7:48 am and sunset at 5:16 pm. On the last day of the month, in America, Indiana, sunrise is at 8:06 am and sunset at 5:25 pm EST.

How long on average sun shines in December in America?

The average sunshine duration in December in America, Indiana, is 4.1h.

When is the lowest UV index in America?

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

What is the UV index intensity in December in America?

In December, the average daily maximum UV index in America is 1. A UV Index value of 2, and less, symbolizes a low health threat 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
America, IN

Average temperature in December - America, IN
  • Average high temperature in December: 36.5°F

The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (30.6°F).

  • Average low temperature in December: 26.6°F

The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (19°F).

Average pressure in December
America, IN

Average pressure in December - America, IN
  • Average pressure in December: 30.1"Hg

The months with the highest atmospheric pressure are January and November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in December
America, IN

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

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).

Average humidity in December
America, IN

Average humidity in December - America, IN
  • Average humidity in December: 83%

The months with the highest relative humidity are January, February, July, August and December (83%).
The month with the lowest relative humidity is October (74%).

Average rainfall in December
America, IN

Average rainfall in December - America, IN
  • Average rainfall in December: 1.38"

The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is February (1.22").

Average rainfall days in December
America, IN

Average rainfall days in December - America, IN
  • Average rainfall days in December: 9.3 days

The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is January (7 days).

Average snowfall in December
America, IN

Average snowfall in December - America, IN
  • Average snowfall in December: 1.77"

The month with the highest snowfall is February (2.83").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
America, IN

Average snowfall days in December - America, IN
  • Average snowfall days in December: 10.1 days

The month with the highest number of snowfall days is January (13.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
America, IN

Average daylight in December / Average sunshine in December - America, 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 18min).

  • Average sunshine in December: 4h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

Average sunshine days in December
America, IN

Average sunshine days in December - America, IN
  • Average sunshine days in December: 13.7 days

The month with the most sunshine days is October (16.7 days).
The month with the least sunshine days is May (9.6 days).

Average UV index in December
America, IN

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

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

Average cloud cover in December
America, IN

Average cloud cover in December - America, IN
  • Average cloud cover in December: 59

The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is July (Cloud cover 33).

Average visibility in December
America, IN

Average visibility in December - America, IN
  • Average visibility in December: 6mi

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

America, Indiana, USA

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