December weather forecast
Wallen, IN

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Weather in December

December ushers in Wallen’s winter season with cold temperatures between 26.2°F (-3.2°C) to 36°F (2.2°C). Snowfall takes prominence in December, allowing for winter activities like skiing and snowboarding to commence. The days inching towards the winter solstice are short, leading to increased nighttime. Cloud cover is abundant during this month, leading to a spectacular white Christmas in Wallen. The decrease in sunshine hours paired with rising snowfall, wraps up Wallen in a winter blanket, bringing the year to a chilly and festive end.

Temperature

The onset of December in Wallen brings a small change in high-temperatures, falling from a frosty 46.9°F (8.3°C) in November to a cold 36°F (2.2°C). Wallen, during December, witnesses an average low-temperature of 26.2°F (-3.2°C).

Humidity

In Wallen, the average relative humidity in December is 84%.

Rainfall

In Wallen, in December, during 7.4 rainfall days, 0.71" (18mm) of precipitation is typically accumulated. Throughout the year, there are 125.3 rainfall days, and 13.11" (333mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, October through December. In December, it is snowing for 7.1 days. Throughout December, 0.67" (17mm) of snow is accumulated. Throughout the year, there are 32.5 snowfall days, and 5.75" (146mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 18min of daylight.
On the first day of December, sunrise is at 7:47 am and sunset at 5:12 pm. On the last day of the month, sunrise is at 8:05 am and sunset at 5:22 pm EST.

Sunshine

The average sunshine in December in Wallen is 3.8h.

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 low threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: An average maximum UV index of 1 in December leads to these recommendations:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Updated: Aug 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

An average high-temperature, in December, in Wallen, is 36°F (2.2°C) and the average low-temperature is 26.2°F (-3.2°C).

What is the average humidity in December?

The average relative humidity in December is 84%.

How many days does it rain in December?

In Wallen, Indiana, during December, the rain falls for 7.4 days and regularly aggregates up to 0.71" (18mm) of precipitation.

How much does it snow in Wallen in December?

In Wallen, during December, snow falls for 7.1 days and regularly aggregates up to 0.67" (17mm) 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 December, the average day length is 9h and 16min.

When are sunrise and sunset in December?

On the first day of December, sunrise is at 7:47 am and sunset at 5:12 pm. On the last day of the month, sunrise is at 8:05 am and sunset at 5:22 pm EST.

How many hours of sunshine does Wallen have in December?

In Wallen, the average sunshine duration in December is 3.8h.

When is the lowest UV index?

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

How high is the UV index in December?

The average daily maximum UV index in December is 1. A UV Index of 2, and less, symbolizes a minimal hazard to health 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
Wallen, IN

Average temperature in December - Wallen, IN
  • Average high temperature in December: 36°F

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (30.2°F).

  • Average low temperature in December: 26.2°F

The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).

Average pressure in December
Wallen, IN

Average pressure in December - Wallen, 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
Wallen, IN

Average wind speed in December - Wallen, IN
  • Average wind speed in December: 9.7mph

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

Average humidity in December
Wallen, IN

Average humidity in December - Wallen, IN
  • Average humidity in December: 84%

The months with the highest relative humidity are January and February (85%).
The month with the lowest relative humidity is October (76%).

Average rainfall in December
Wallen, IN

Average rainfall in December - Wallen, IN
  • Average rainfall in December: 0.71"

The wettest month (with the highest rainfall) is May (1.69").
The driest month (with the least rainfall) is February (0.67").

Average rainfall days in December
Wallen, IN

Average rainfall days in December - Wallen, IN
  • Average rainfall days in December: 7.4 days

The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is February (4.9 days).

Average snowfall in December
Wallen, IN

Average snowfall in December - Wallen, IN
  • Average snowfall in December: 0.67"

The month with the highest snowfall is February (1.69").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Wallen, IN

Average snowfall days in December - Wallen, IN
  • Average snowfall days in December: 7.1 days

The month with the highest number of snowfall days is January (8.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Wallen, IN
  • 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: 3h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).

Average sunshine days in December
Wallen, IN

Average sunshine days in December - Wallen, IN
  • Average sunshine days in December: 18.8 days

The month with the most sunshine days is January (19.2 days).
The month with the least sunshine days is July (12 days).

Average UV index in December
Wallen, IN

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

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

Average cloud cover in December
Wallen, IN

Average cloud cover in December - Wallen, IN
  • Average cloud cover in December: 61

The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 32).

Average visibility in December
Wallen, IN

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

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

Wallen, Indiana, USA

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