December weather forecast
Clarksville, IN

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Weather in December

The first month of the winter, December, is also a frosty month in Clarksville, Indiana, with an average temperature varying between 44.1°F (6.7°C) and 31.8°F (-0.1°C).

Temperature

In Clarksville, the average high-temperature in December drops from a fresh 53.2°F (11.8°C) in November to a chilly 44.1°F (6.7°C). During the nights in December, an average low-temperature of 31.8°F (-0.1°C) is observed.

Humidity

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

Rainfall

In December, in Clarksville, the rain falls for 11.4 days. Throughout December, 1.3" (33mm) of precipitation is accumulated. Throughout the year, in Clarksville, there are 145.2 rainfall days, and 17.64" (448mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Clarksville, Indiana, are January through April, November and December. In Clarksville, in December, snow falls for 5.2 days, with typically accumulated 0.51" (13mm) of snow. Throughout the year, in Clarksville, there are 25 snowfall days, and 3.7" (94mm) 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 in Clarksville, Indiana, sunrise is at 7:41 am and sunset at 5:23 pm. On the last day of the month, sunrise is at 7:59 am and sunset at 5:32 pm EST.

Sunshine

The months with the least sunshine in Clarksville are January and December, 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 in Clarksville. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In December, a daily UV index of 2 turns into the following recommendations:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
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Frequently asked questions

Is December cold in Clarksville?

The average high-temperature, in December, in Clarksville, is 44.1°F (6.7°C), while the average low-temperature is 31.8°F (-0.1°C). In August, the average heat index (a.k.a. 'feels like', 'real feel'), which factors the actual air temperature with the relative humidity, is evaluated at 95°F (35°C).

What are the most humid months in Clarksville?

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

What is the average humidity in December in Clarksville?

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

How much does it rain in Clarksville in December?

In Clarksville, Indiana, during December, the rain falls for 11.4 days and regularly aggregates up to 1.3" (33mm) of precipitation.

How many days does it snow in December in Clarksville?

In Clarksville, Indiana, in December, during 5.2 snowfall days, 0.51" (13mm) of snow is typically accumulated.

What is the month with the shortest days in Clarksville?

With an average of 9h and 36min of daylight, December has the shortest days of the year in Clarksville.

How many hours of daylight does Clarksville have in December?

In December, the average day length is 9h and 33min.

What time are sunrise and sunset in December in Clarksville?

On the first day of December in Clarksville, sunrise is at 7:41 am and sunset at 5:23 pm. On the last day of the month, sunrise is at 7:59 am and sunset at 5:32 pm EST.

What are the months with the least sunshine in Clarksville?

The months with the least sunshine in Clarksville are January and December, with an average of 4.4h of sunshine.

How long on average sun shines in December in Clarksville?

In December, the average sunshine duration in Clarksville is 4.4h.

When is the lowest UV index in Clarksville?

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

How high is the UV index in December in Clarksville?

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

Average temperature in December - Clarksville, IN
  • Average high temperature in December: 44.1°F

The warmest month (with the highest average high temperature) is July (87.1°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 (67.5°F).
The coldest month (with the lowest average low temperature) is January (25.9°F).

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Average pressure in December
Clarksville, IN

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

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

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Average wind speed in December
Clarksville, IN

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

The windiest month (with the highest average wind speed) is January (7.8mph).
The calmest months (with the lowest average wind speed) are July and August (4.9mph).

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Average humidity in December
Clarksville, IN

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

The months with the highest relative humidity are February and December (80%).
The months with the lowest relative humidity are August and October (73%).

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Average rainfall in December
Clarksville, IN

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

The wettest months (with the highest rainfall) are May and July (1.89").
The driest months (with the least rainfall) are January and September (1.06").

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Average rainfall days in December
Clarksville, IN

Average rainfall days in December - Clarksville, IN
  • Average rainfall days in December: 11.4 days

The month with the highest number of rainy days is May (16 days).
The month with the least rainy days is February (8.9 days).

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Average snowfall in December
Clarksville, IN

Average snowfall in December - Clarksville, IN
  • Average snowfall in December: 0.51"

The month with the highest snowfall is February (1.06").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
Clarksville, IN

Average snowfall days in December - Clarksville, IN
  • Average snowfall days in December: 5.2 days

The month with the highest number of snowfall days is January (7.3 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
Clarksville, IN

Average daylight in December / Average sunshine in December - Clarksville, 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 months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and December (Average sunshine: 4h and 24min).

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Average sunshine days in December
Clarksville, IN

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

The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is May (11.7 days).

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Average UV index in December
Clarksville, IN

Average UV index in December - Clarksville, 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).

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Average cloud cover in December
Clarksville, IN

Average cloud cover in December - Clarksville, 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 28).

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Average visibility in December
Clarksville, IN

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

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

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Clarksville, Indiana, USA

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