December weather forecast
Cainsville, TN

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Weather in December

December, the first month of the winter in Cainsville, is also a frosty month, with an average temperature ranging between min 35.8°F (2.1°C) and max 49.3°F (9.6°C).

Temperature

A modest decline in the average high-temperature is seen during December, decreasing from a mild 57.6°F (14.2°C) in November to a chilly 49.3°F (9.6°C). Cainsville reports an average low-temperature of 35.8°F (2.1°C) during the nights of December.

Humidity

With an average relative humidity of 79%, December is the most humid month.

Rainfall

In Cainsville, during December, the rain falls for 9.6 days and regularly aggregates up to 1.1" (28mm) of precipitation. Throughout the year, there are 123.1 rainfall days, and 12.76" (324mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through March, November and December. In December, it is snowing for 1.7 days. Throughout December, 0.2" (5mm) of snow is accumulated. In Cainsville, during the entire year, snow falls for 10.9 days and aggregates up to 0.87" (22mm) of snow.

Daylight

December has the shortest days of the year in Cainsville, with an average of 9h and 48min of daylight.
On the first day of December, sunrise is at 6:37 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 4:41 pm CST.

Sunshine

The average sunshine in December is 4.7h.

UV index

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index, 2 during December, leads to the following recommendations:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Updated: Jul 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in December?

December temperatures vary between a high-temperature of 49.3°F (9.6°C) and a low-temperature of 35.8°F (2.1°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in September is estimated at 86°F (30°C).

What is the most humid month in Cainsville?

December is the most humid month, with an average relative humidity of 79%.

What is the average humidity in December?

In December, the average relative humidity is 79%.

How much does it rain in December?

In Cainsville, in December, it is raining for 9.6 days, with typically 1.1" (28mm) of accumulated precipitation.

How much does it snow in December?

In December, it is snowing for 1.7 days. Throughout December, 0.2" (5mm) of snow is accumulated.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 48min of daylight.

What is the average length of the day in December?

The average day length in December is 9h and 46min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 6:37 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 4:41 pm CST.

How long on average sun shines in December?

The average sunshine duration in December is 4.7h.

What are the months with the lowest UV index?

January, February 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 Cainsville, Tennessee, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a low health threat 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
Cainsville, TN

Average temperature in December - Cainsville, TN
  • Average high temperature in December: 49.3°F

The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is January (45.1°F).

  • Average low temperature in December: 35.8°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (30.7°F).

Average pressure in December
Cainsville, TN

Average pressure in December - Cainsville, TN
  • Average pressure in December: 30.15"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

Average wind speed in December
Cainsville, TN

Average wind speed in December - Cainsville, TN
  • Average wind speed in December: 7.3mph

The windiest month (with the highest average wind speed) is February (8mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).

Average humidity in December
Cainsville, TN

Average humidity in December - Cainsville, TN
  • Average humidity in December: 79%

The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is October (74%).

Average rainfall in December
Cainsville, TN

Average rainfall in December - Cainsville, TN
  • Average rainfall in December: 1.1"

The wettest month (with the highest rainfall) is February (1.5").
The driest month (with the least rainfall) is September (0.39").

Average rainfall days in December
Cainsville, TN

Average rainfall days in December - Cainsville, TN
  • Average rainfall days in December: 9.6 days

The month with the highest number of rainy days is July (13.9 days).
The month with the least rainy days is November (7.3 days).

Average snowfall in December
Cainsville, TN

Average snowfall in December - Cainsville, TN
  • Average snowfall in December: 0.2"

The month with the highest snowfall is February (0.31").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Cainsville, TN

Average snowfall days in December - Cainsville, TN
  • Average snowfall days in December: 1.7 days

The month with the highest number of snowfall days is January (3.8 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
Cainsville, TN

Average daylight in December / Average sunshine in December - Cainsville, TN
  • Average daylight in December: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in December: 4h and 4min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

Average sunshine days in December
Cainsville, TN

Average sunshine days in December - Cainsville, TN
  • Average sunshine days in December: 18.5 days

The month with the most sunshine days is November (21.2 days).
The month with the least sunshine days is July (13.3 days).

Average UV index in December
Cainsville, TN

Average UV index in December - Cainsville, TN
  • 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
Cainsville, TN

Average cloud cover in December - Cainsville, TN
  • Average cloud cover in December: 51

The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 29).

Average visibility in December
Cainsville, TN

Average visibility in December - Cainsville, TN
  • 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).

Cainsville, Tennessee, USA

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