December weather forecast
Fortville, IN

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Weather in December

The first month of the winter, December, is also a wintry month in Fortville, Indiana, with an average temperature fluctuating between 27.9°F (-2.3°C) and 38.1°F (3.4°C).

Temperature

December ushers in a slight temperature change, with average high-temperatures reducing from November's frosty 49.1°F (9.5°C) to a wintry 38.1°F (3.4°C). The nighttime temperature in Fortville dips to a freezing cold 27.9°F (-2.3°C) on average during December.

Humidity

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

Rainfall

In December, in Fortville, Indiana, the rain falls for 5.5 days. Throughout December, 0.51" (13mm) of precipitation is accumulated. Throughout the year, in Fortville, there are 90.4 rainfall days, and 6.85" (174mm) of precipitation is accumulated.

Snowfall

January through April, November and December are months with snowfall. The month with the most snowfall in Fortville is December, when snow falls for 3.8 days and typically aggregates up to 0.59" (15mm) of snow.

Daylight

December has the shortest days of the year in Fortville, with an average of 9h and 24min of daylight.
On the first day of December in Fortville, sunrise is at 7:46 am and sunset at 5:18 pm. On the last day of the month, sunrise is at 8:04 am and sunset at 5:28 pm EST.

Sunshine

In Fortville, the average sunshine in December is 4.2h.

UV index

With an average maximum UV index of 1, December is the month with the lowest UV index in Fortville. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The UV index of 1 during December leads to these advisories:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
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Frequently asked questions

How cold does it get in Fortville in December?

The average high-temperature, in December, in Fortville, is 38.1°F (3.4°C), while the average low-temperature is 27.9°F (-2.3°C). In July, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is computed to be 87.8°F (31°C).

What are the most humid months in Fortville?

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

What is the average humidity in December in Fortville?

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

How much does it rain in Fortville in December?

In Fortville, Indiana, during December, the rain falls for 5.5 days and regularly aggregates up to 0.51" (13mm) of precipitation.

When does it snow the most in Fortville?

December is the month with the most snowfall in Fortville, Indiana. Snow falls for 3.8 days and accumulates 0.59" (15mm) of snow.

How many days does it snow in December in Fortville?

In Fortville, Indiana, during December, snow falls for 3.8 days and regularly aggregates up to 0.59" (15mm) of snow.

What is the month with the shortest days in Fortville?

With an average of 9h and 24min of daylight, December has the shortest days of the year in Fortville, Indiana.

What is the average length of the day in December in Fortville?

In December, the average day length in Fortville is 9h and 23min.

When are sunrise and sunset in December in Fortville?

In December, on the first day of the month, sunrise is at 7:46 am and sunset at 5:18 pm. On the last day of the month, in Fortville, sunrise is at 8:04 am and sunset at 5:28 pm EST.

How long on average sun shines in December in Fortville?

In Fortville, Indiana, the average sunshine duration in December is 4.2h.

What is the month with the lowest UV index in Fortville?

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

What is the UV index reading in December in Fortville?

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

Average temperature in December - Fortville, IN
  • Average high temperature in December: 38.1°F

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (32.5°F).

  • Average low temperature in December: 27.9°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).

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Average pressure in December
Fortville, IN

Average pressure in December - Fortville, IN
  • Average pressure in December: 30.12"Hg

The months with the highest atmospheric pressure are January and November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in December
Fortville, IN

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

The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).

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Average humidity in December
Fortville, IN

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

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

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Average rainfall in December
Fortville, IN

Average rainfall in December - Fortville, IN
  • Average rainfall in December: 0.51"

The wettest months (with the highest rainfall) are May and June (0.79").
The driest month (with the least rainfall) is September (0.31").

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Average rainfall days in December
Fortville, IN

Average rainfall days in December - Fortville, IN
  • Average rainfall days in December: 5.5 days

The month with the highest number of rainy days is April (10.8 days).
The month with the least rainy days is January (4.2 days).

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Average snowfall in December
Fortville, IN

Average snowfall in December - Fortville, IN
  • Average snowfall in December: 0.59"

The month with the highest snowfall is December (0.59").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
Fortville, IN

Average snowfall days in December - Fortville, IN
  • Average snowfall days in December: 3.8 days

The month with the highest number of snowfall days is January (5.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Fortville, 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 24min).

  • Average sunshine in December: 4h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

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Average sunshine days in December
Fortville, IN

Average sunshine days in December - Fortville, IN
  • Average sunshine days in December: 23.1 days

The month with the most sunshine days is January (23.3 days).
The month with the least sunshine days is June (15.3 days).

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Average UV index in December
Fortville, IN

Average UV index in December - Fortville, 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).

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Average cloud cover in December
Fortville, IN

Average cloud cover in December - Fortville, IN
  • Average cloud cover in December: 57

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 30).

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Average visibility in December
Fortville, IN

Average visibility in December - Fortville, 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).

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Fortville, Indiana, USA

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