December weather forecast
Pennville, IN

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Weather in December

The first month of the winter, December, is still a cold month in Pennville, Indiana, with an average temperature varying between 36.7°F (2.6°C) and 27.3°F (-2.6°C).

Temperature

Pennville in December experiences a subtle temperature decline, with average high-temperatures reducing from a frosty 48.2°F (9°C) in November to a cold 36.7°F (2.6°C). Pennville anticipates an average minimum temperature of 27.3°F (-2.6°C) in the month of December.

Humidity

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

Rainfall

In Pennville, in December, during 8.1 rainfall days, 1.3" (33mm) of precipitation is typically accumulated. Throughout the year, there are 137.2 rainfall days, and 17.95" (456mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall. In December, in Pennville, it is snowing for 8.1 days. Throughout December, 1.54" (39mm) of snow is accumulated. Throughout the year, there are 35.6 snowfall days, and 7.64" (194mm) of snow is accumulated.

Daylight

With an average of 9h and 18min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:45 am and sunset at 5:14 pm. On the last day of December, sunrise is at 8:03 am and sunset at 5:24 pm EST.

Sunshine

In December, the average sunshine in Pennville is 3.9h.

UV index

The month with the lowest UV index is December, 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 radiation for ordinary individuals.
Note: A daily maximum UV index of 1 in December translates into the following instructions:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. To cut down UV radiation exposure by about half, sport a wide-brim hat. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Updated: Jun 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

In Pennville, 36.7°F (2.6°C) is the average high-temperature and 27.3°F (-2.6°C) is the average low-temperature during December. In July, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines air temperature and relative humidity, is calculated to be 87.8°F (31°C).

What are the most humid months?

The months with the highest humidity are January, February and December, with an average relative humidity of 83%.

What is the average humidity in December?

In Pennville, the average relative humidity in December is 83%.

How much does it rain in December?

In Pennville, in December, it is raining for 8.1 days, with typically 1.3" (33mm) of accumulated precipitation.

How many days does it snow in December?

In Pennville, in December, during 8.1 snowfall days, 1.54" (39mm) of snow is typically accumulated.

What is the month with the shortest days in Pennville?

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 Pennville, the average day length in December is 9h and 20min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 7:45 am and sunset at 5:14 pm. On the last day of the month, sunrise is at 8:03 am and sunset at 5:24 pm EST.

How long on average sun shines in December?

The average sunshine duration in December is 3.9h.

What is the month with 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 December, the average daily maximum UV index is 1. A UV Index value of 2, and less, symbolizes 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
Pennville, IN

Average temperature in December - Pennville, IN
  • Average high temperature in December: 36.7°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (31.6°F).

  • Average low temperature in December: 27.3°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).

Average pressure in December
Pennville, IN

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

The months with the highest atmospheric pressure are January and November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in December
Pennville, IN

Average wind speed in December - Pennville, IN
  • Average wind speed in December: 9.8mph

The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is August (6mph).

Average humidity in December
Pennville, IN

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

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

Average rainfall in December
Pennville, IN

Average rainfall in December - Pennville, IN
  • Average rainfall in December: 1.3"

The wettest month (with the highest rainfall) is May (2.24").
The driest month (with the least rainfall) is February (0.98").

Average rainfall days in December
Pennville, IN

Average rainfall days in December - Pennville, IN
  • Average rainfall days in December: 8.1 days

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is February (5.4 days).

Average snowfall in December
Pennville, IN

Average snowfall in December - Pennville, IN
  • Average snowfall in December: 1.54"

The month with the highest snowfall is February (2.2").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Pennville, IN

Average snowfall days in December - Pennville, IN
  • Average snowfall days in December: 8.1 days

The month with the highest number of snowfall days is January (9.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Pennville, 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: 3h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

Average sunshine days in December
Pennville, IN

Average sunshine days in December - Pennville, IN
  • Average sunshine days in December: 16.4 days

The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is May (11.3 days).

Average UV index in December
Pennville, IN

Average UV index in December - Pennville, 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
Pennville, IN

Average cloud cover in December - Pennville, IN
  • Average cloud cover in December: 60

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

Average visibility in December
Pennville, IN

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

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

Pennville, Indiana, USA

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