December weather forecast and climate
Crossville, TN

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

Temperature

In December, the average high-temperature marginally drops, from a fresh 54.7°F (12.6°C) in November, to a chilly 46.9°F (8.3°C). In Crossville, Tennessee, in December, the average low-temperature is 33.4°F (0.8°C).

Humidity

Months with the highest humidity in Crossville are February, March and December, with an average relative humidity of 81%.

Rainfall

In Crossville, during 15.1 rainfall days, 4.41" (112mm) of precipitation is typically accumulated. In Crossville, Tennessee, during the entire year, the rain falls for 198.6 days and collects up to 51.73" (1314mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall. In Crossville, in December, snow falls for 4.8 days, with typically accumulated 2.2" (56mm) of snow. Throughout the year, in Crossville, there are 29.4 snowfall days, and 10.12" (257mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9.8h of daylight.

Sunshine

In Crossville, the average sunshine is 4.5h.

UV index

Months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 2 interpret into the following advice:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in December in Crossville?

In Crossville, in December, the average high-temperature is 46.9°F (8.3°C), and the average low-temperature is 33.4°F (0.8°C).

What is the most humid month in Crossville?

February, March and December, with an average relative humidity of 81%, are most humid months in Crossville.

What is the average humidity in December in Crossville?

In Crossville, Tennessee, the average relative humidity in December is 81%.

How many days does it rain in December in Crossville?

In Crossville, Tennessee, in December, it is raining for 15.1 days, with typically 4.41" (112mm) of accumulated precipitation.

How many days does it snow in December in Crossville?

In Crossville, in December, during 4.8 snowfall days, 2.2" (56mm) of snow is typically accumulated.

What is the month with the shortest days in Crossville?

With an average of 9.8h of daylight, December has the shortest days of the year in Crossville, Tennessee.

How many hours of daylight does Crossville have in December?

In December, the average length of the day in Crossville is 9.8h.

How long on average sun shines in December in Crossville?

The average sunshine in December in Crossville, Tennessee, is 4.5h.

When is the lowest UV index in Crossville?

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

How high is the UV index in December in Crossville?

The average daily maximum UV index in December in Crossville is 2. A UV Index of 2, and less, symbolizes a low health threat from unprotected exposure to the UV radiation.
Average temperature in December - Crossville, TN
  • Average high temperature in December: 46.9°F

The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (42.4°F).

  • Average low temperature in December: 33.4°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 (28°F).

Average pressure in December - Crossville, TN
  • Average pressure in December: 30.15"

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

Average wind speed in December - Crossville, TN
  • Average wind speed in December: 6.8mph

The windiest month (with the highest average wind speed) is February (7.6mph).
The calmest months (with the lowest average wind speed) are July and August (4.2mph).

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

Months with the highest relative humidity are February, March and December (81%).
The month with the lowest relative humidity is November (77%).

Average rainfall in December - Crossville, TN
  • Average rainfall in December: 4.41"

The wettest month (with the highest rainfall) is July (5.51").
The driest month (with the least rainfall) is November (3.15").

Average rainfall days in December - Crossville, TN
  • Average rainfall days in December: 15.1 days

The month with the highest number of rainy days is July (21.8 days).
The month with the least rainy days is November (11.2 days).

Average snowfall in December - Crossville, TN
  • Average snowfall in December: 2.2"

The month with the highest snowfall is February (2.91").
Months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December - Crossville, TN
  • Average snowfall days in December: 4.8 days

The month with the highest number of snowfall days is January (8.5 days).
Months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in December / Average sunshine in December - Crossville, TN
  • Average daylight in December: 9.8h

The month with the longest days is June (Average daylight: 14.6h).
The month with the shortest days is December (Average daylight: 9.8h).

  • Average sunshine in December: 4.5h

The month with the most sunshine is June (Average sunshine: 10h).
The month with the least sunshine is February (Average sunshine: 4.1h).

Average sunshine days in December - Crossville, TN
  • Average sunshine days in December: 12.9 days

The month with the most sunshine days is October (16.2 days).
Months with the least sunshine days are June and July (7.8 days).

Average UV index in December - Crossville, TN
  • Average UV index in December: 2

Months with the highest UV index are May, June, July and August (UV index 6).
Months with the lowest UV index are January, February and December (UV index 2).

Average cloud cover in December - Crossville, TN
  • Average cloud cover in December: 55

The month with the most cloud cover is February (Cloud cover 57).
The month with the least cloud cover is June (Cloud cover 35).

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

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