December weather forecast
Fort Branch, IN

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Weather in December

The first month of the winter, December, is also a frosty month in Fort Branch, Indiana, with temperature in the range of an average high of 43.5°F (6.4°C) and an average low of 32.2°F (0.1°C).

Temperature

Fort Branch's weather in December involves a decrease in the average high-temperature, moving down from November's cool 53.2°F (11.8°C) to a frosty 43.5°F (6.4°C). Fort Branch, during the nights of December, experiences an average temperature drop to a cold 32.2°F (0.1°C).

Humidity

In December, the average relative humidity is 78%.

Rainfall

In Fort Branch, in December, during 8.7 rainfall days, 1.34" (34mm) of precipitation is typically accumulated. Throughout the year, there are 133.6 rainfall days, and 19.33" (491mm) of precipitation is accumulated.

Snowfall

January through April, November and December are months with snowfall. In Fort Branch, during December, snow falls for 3.7 days and regularly aggregates up to 0.47" (12mm) of snow. Throughout the year, in Fort Branch, there are 18 snowfall days, and 3.35" (85mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 36min of daylight.
On the first day of the month, sunrise is at 6:48 am and sunset at 4:30 pm. On the last day of December, sunrise is at 7:06 am and sunset at 4:40 pm CST.

Sunshine

The average sunshine in December is 4.5h.

UV index

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Fort Branch. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum UV index of 2 during December leads to these instructions:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Updated: Aug 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold does it get in December?

Fort Branch in December has an average high-temperature of 43.5°F (6.4°C) and an average low-temperature of 32.2°F (0.1°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in August is evaluated at 93.2°F (34°C).

What is the average humidity in December?

In Fort Branch, the average relative humidity in December is 78%.

How much does it rain in December?

In Fort Branch, during December, the rain falls for 8.7 days and regularly aggregates up to 1.34" (34mm) of precipitation.

How much does it snow in December?

In Fort Branch, in December, snow falls for 3.7 days, with typically accumulated 0.47" (12mm) of snow.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 36min of daylight.

How many hours of daylight does Fort Branch have in December?

In December, the average day length is 9h and 34min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 6:48 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 4:40 pm CST.

How long on average sun shines in December?

In December, the average sunshine duration is 4.5h.

When is the lowest UV index?

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

What is the UV index intensity in December?

The average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability 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
Fort Branch, IN

Average temperature in December - Fort Branch, IN
  • Average high temperature in December: 43.5°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (38.1°F).

  • Average low temperature in December: 32.2°F

The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (25.9°F).

Average pressure in December
Fort Branch, IN

Average pressure in December - Fort Branch, IN
  • 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 (29.94"Hg).

Average wind speed in December
Fort Branch, IN

Average wind speed in December - Fort Branch, IN
  • Average wind speed in December: 9.3mph

The windiest month (with the highest average wind speed) is February (10mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).

Average humidity in December
Fort Branch, IN

Average humidity in December - Fort Branch, IN
  • Average humidity in December: 78%

The months with the highest relative humidity are May and July (80%).
The month with the lowest relative humidity is October (70%).

Average rainfall in December
Fort Branch, IN

Average rainfall in December - Fort Branch, IN
  • Average rainfall in December: 1.34"

The wettest month (with the highest rainfall) is April (2.28").
The driest month (with the least rainfall) is September (0.91").

Average rainfall days in December
Fort Branch, IN

Average rainfall days in December - Fort Branch, IN
  • Average rainfall days in December: 8.7 days

The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is January (7.8 days).

Average snowfall in December
Fort Branch, IN

Average snowfall in December - Fort Branch, IN
  • Average snowfall in December: 0.47"

The month with the highest snowfall is January (0.98").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Fort Branch, IN

Average snowfall days in December - Fort Branch, IN
  • Average snowfall days in December: 3.7 days

The months with the highest number of snowfall days are January and February (5.1 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
Fort Branch, IN

Average daylight in December / Average sunshine in December - Fort Branch, IN
  • 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 3min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

Average sunshine days in December
Fort Branch, IN

Average sunshine days in December - Fort Branch, IN
  • Average sunshine days in December: 19.1 days

The month with the most sunshine days is October (20.8 days).
The month with the least sunshine days is May (12.5 days).

Average UV index in December
Fort Branch, IN

Average UV index in December - Fort Branch, IN
  • 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 and December (UV index 2).

Average cloud cover in December
Fort Branch, IN

Average cloud cover in December - Fort Branch, IN
  • Average cloud cover in December: 52

The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 27).

Average visibility in December
Fort Branch, IN

Average visibility in December - Fort Branch, IN
  • 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).

Fort Branch, Indiana, USA

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