December weather forecast
Corydon, IN

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Weather in December

The first month of the winter, December, is also a frosty month in Corydon, Indiana, with an average temperature varying between 31.8°F (-0.1°C) and 43.9°F (6.6°C).

Temperature

Arrival of December comes with a reduction in the average high-temperature, falling from a cool 52.9°F (11.6°C) in November to a frosty 43.9°F (6.6°C). During December, the temperature is averaged to a low of 31.8°F (-0.1°C) at night.

Humidity

February and December, with an average relative humidity of 80%, are the most humid months.

Rainfall

In Corydon, Indiana, in December, during 11.3 rainfall days, 2.2" (56mm) of precipitation is typically accumulated. In Corydon, during the entire year, the rain falls for 160 days and collects up to 29.45" (748mm) of precipitation.

Snowfall

Months with snowfall are January through April, September through December. In Corydon, during December, snow falls for 5.5 days and regularly aggregates up to 1.14" (29mm) of snow. Throughout the year, there are 26.8 snowfall days, and 7.91" (201mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 36min of daylight.
On the first day of December, sunrise is at 7:42 am and sunset at 5:24 pm. On the last day of the month, sunrise is at 8:00 am and sunset at 5:34 pm EST.

Sunshine

December has the least sunshine of the year, with an average of 4.4h of sunshine.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index of 2 during December translates into these guidelines:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Updated: Jun 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is December cold?

In Corydon, in December, the average high-temperature is 43.9°F (6.6°C), and the average low-temperature is 31.8°F (-0.1°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in August is calculated to be 96.8°F (36°C).

What is the most humid month?

The months with the highest humidity in Corydon are February and December, with an average relative humidity of 80%.

What is the average humidity in December?

In December, the average relative humidity in Corydon, Indiana, is 80%.

How many days does it rain in December in Corydon?

In Corydon, in December, during 11.3 rainfall days, 2.2" (56mm) of precipitation is typically accumulated.

How many days does it snow in December?

In Corydon, Indiana, during December, snow falls for 5.5 days and regularly aggregates up to 1.14" (29mm) of snow.

What is the month with the shortest days in Corydon?

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

What is the average length of the day in December?

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

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 7:42 am and sunset at 5:24 pm. On the last day of the month, sunrise is at 8:00 am and sunset at 5:34 pm EST.

What is the month with the least sunshine?

The month with the least sunshine is December, with an average of 4.4h of sunshine.

How long on average sun shines in December?

The average sunshine duration in December is 4.4h.

What are the months with the lowest UV index?

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

What is the UV index intensity in December?

In December, the average daily maximum UV index in Corydon is 2. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to 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
Corydon, IN

Average temperature in December - Corydon, IN
  • Average high temperature in December: 43.9°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in December: 31.8°F

The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).

Average pressure in December
Corydon, IN

Average pressure in December - Corydon, IN
  • Average pressure in December: 30.13"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in December
Corydon, IN

Average wind speed in December - Corydon, IN
  • Average wind speed in December: 7.1mph

The windiest months (with the highest average wind speed) are January and February (7.7mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).

Average humidity in December
Corydon, IN

Average humidity in December - Corydon, IN
  • Average humidity in December: 80%

The months with the highest relative humidity are February and December (80%).
The month with the lowest relative humidity is October (74%).

Average rainfall in December
Corydon, IN

Average rainfall in December - Corydon, IN
  • Average rainfall in December: 2.2"

The wettest month (with the highest rainfall) is April (3.31").
The driest month (with the least rainfall) is September (1.61").

Average rainfall days in December
Corydon, IN

Average rainfall days in December - Corydon, IN
  • Average rainfall days in December: 11.3 days

The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is November (9.8 days).

Average snowfall in December
Corydon, IN

Average snowfall in December - Corydon, IN
  • Average snowfall in December: 1.14"

The month with the highest snowfall is January (2.24").
The months with the least snowfall are May, June, July and August (0").

Average snowfall days in December
Corydon, IN

Average snowfall days in December - Corydon, IN
  • Average snowfall days in December: 5.5 days

The month with the highest number of snowfall days is January (7.6 days).
The months with the least snowfall days are May, June, July and August (0 days).

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

Average daylight in December / Average sunshine in December - Corydon, 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 2min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 24min).

Average sunshine days in December
Corydon, IN

Average sunshine days in December - Corydon, IN
  • Average sunshine days in December: 15.2 days

The month with the most sunshine days is October (19.1 days).
The month with the least sunshine days is May (11.1 days).

Average UV index in December
Corydon, IN

Average UV index in December - Corydon, 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, November and December (UV index 2).

Average cloud cover in December
Corydon, IN

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

The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 29).

Average visibility in December
Corydon, IN

Average visibility in December - Corydon, IN
  • Average visibility in December: 5mi

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

Corydon, Indiana, USA

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