December weather forecast
Fincastle, TN

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Weather in December

The first month of the winter, December, is still a chilly month in Fincastle, Tennessee, with an average temperature varying between 33.4°F (0.8°C) and 46.9°F (8.3°C).

Temperature

December's arrival comes with a mild decrease in the average high-temperature, moving subtly from a fresh 54.7°F (12.6°C) in November to a chilly 46.9°F (8.3°C). An average minimum temperature of 33.4°F (0.8°C) is recorded in Fincastle during the month of December.

Humidity

February and December, with an average relative humidity of 81%, are the most humid months in Fincastle, Tennessee.

Rainfall

In Fincastle, during December, the rain falls for 12.6 days and regularly aggregates up to 2.83" (72mm) of precipitation. Throughout the year, in Fincastle, there are 167 rainfall days, and 33.62" (854mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Fincastle are January through April, November and December. In Fincastle, during December, snow falls for 3.1 days and regularly aggregates up to 0.91" (23mm) of snow. Throughout the year, in Fincastle, there are 17.6 snowfall days, and 6.02" (153mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 42min of daylight.
On the first day of December in Fincastle, sunrise is at 7:29 am and sunset at 5:21 pm. On the last day of the month, sunrise is at 7:47 am and sunset at 5:31 pm EST.

Sunshine

The average sunshine in December in Fincastle is 4.8h.

UV index

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Fincastle. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for average individuals.
Note: A maximum UV index of 2 in December translates into the following recommendations:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in December in Fincastle?

In December, in Fincastle, the average high-temperature is 46.9°F (8.3°C), and the average low-temperature is 33.4°F (0.8°C). In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is calculated to be 95°F (35°C).

What is the most humid month in Fincastle?

The months with the highest humidity in Fincastle are February and December, with an average relative humidity of 81%.

What is the average humidity in December in Fincastle?

The average relative humidity in December in Fincastle, Tennessee, is 81%.

How many days does it rain in December in Fincastle?

In Fincastle, in December, during 12.6 rainfall days, 2.83" (72mm) of precipitation is typically accumulated.

How much does it snow in Fincastle in December?

In December, in Fincastle, Tennessee, it is snowing for 3.1 days. Throughout December, 0.91" (23mm) of snow is accumulated.

What is the month with the shortest days in Fincastle?

With an average of 9h and 42min of daylight, December has the shortest days of the year in Fincastle.

How many hours of daylight does Fincastle have in December?

In December, the average day length in Fincastle is 9h and 44min.

What time are sunrise and sunset in December in Fincastle?

In December, on the first day of the month, sunrise is at 7:29 am and sunset at 5:21 pm. On the last day of the month, in Fincastle, sunrise is at 7:47 am and sunset at 5:31 pm EST.

How long on average sun shines in December in Fincastle?

In December, the average sunshine duration in Fincastle is 4.8h.

When is the lowest UV index in Fincastle?

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

What is the UV index reading in December in Fincastle?

In Fincastle, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents 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
Fincastle, TN

Average temperature in December - Fincastle, TN
  • Average high temperature in December: 46.9°F

The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (42.3°F).

  • Average low temperature in December: 33.4°F

The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (27.7°F).

Average pressure in December
Fincastle, TN

Average pressure in December - Fincastle, TN
  • Average pressure in December: 30.14"Hg

The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

Average wind speed in December
Fincastle, TN

Average wind speed in December - Fincastle, TN
  • Average wind speed in December: 5.2mph

The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest month (with the lowest average wind speed) is August (3.5mph).

Average humidity in December
Fincastle, TN

Average humidity in December - Fincastle, TN
  • Average humidity in December: 81%

The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is August (76%).

Average rainfall in December
Fincastle, TN

Average rainfall in December - Fincastle, TN
  • Average rainfall in December: 2.83"

The wettest month (with the highest rainfall) is February (3.94").
The driest month (with the least rainfall) is September (1.89").

Average rainfall days in December
Fincastle, TN

Average rainfall days in December - Fincastle, TN
  • Average rainfall days in December: 12.6 days

The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is November (9.4 days).

Average snowfall in December
Fincastle, TN

Average snowfall in December - Fincastle, TN
  • Average snowfall in December: 0.91"

The month with the highest snowfall is February (2.01").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Fincastle, TN

Average snowfall days in December - Fincastle, TN
  • Average snowfall days in December: 3.1 days

The month with the highest number of snowfall days is January (5.5 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
Fincastle, TN

Average daylight in December / Average sunshine in December - Fincastle, TN
  • Average daylight in December: 9h and 4min

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 42min).

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).

Average sunshine days in December
Fincastle, TN

Average sunshine days in December - Fincastle, TN
  • Average sunshine days in December: 15.9 days

The month with the most sunshine days is October (18.8 days).
The month with the least sunshine days is July (10.1 days).

Average UV index in December
Fincastle, TN

Average UV index in December - Fincastle, 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
Fincastle, TN

Average cloud cover in December - Fincastle, TN
  • Average cloud cover in December: 53

The month with the most cloud cover is February (Cloud cover 56).
The months with the least cloud cover are June and August (Cloud cover 32).

Average visibility in December
Fincastle, TN

Average visibility in December - Fincastle, TN
  • Average visibility in December: 5mi

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

Fincastle, Tennessee, USA

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