December weather forecast
Collinwood, TN

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Weather in December

December, the first month of the winter in Collinwood, is also a fresh month, with an average temperature ranging between max 50°F (10°C) and min 36.9°F (2.7°C).

Temperature

In December, the average high-temperature marginally decreases from a refreshing 58.3°F (14.6°C) in November to a cool 50°F (10°C). In December, Collinwood experiences a temperature dip to an average of 36.9°F (2.7°C) at night.

Humidity

March and December, with an average relative humidity of 79%, are the most humid months.

Rainfall

In Collinwood, during December, the rain falls for 13.5 days and regularly aggregates up to 3.5" (89mm) of precipitation. In Collinwood, during the entire year, the rain falls for 178.9 days and collects up to 41.57" (1056mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall. In Collinwood, Tennessee, in December, snow falls for 1.8 days, with typically accumulated 0.83" (21mm) of snow. In Collinwood, during the entire year, snow falls for 10.7 days and aggregates up to 3.43" (87mm) of snow.

Daylight

With an average of 9h and 48min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 6:41 am and sunset at 4:38 pm. On the last day of December, sunrise is at 6:59 am and sunset at 4:49 pm CST.

Sunshine

In December, the average sunshine is 4.7h.

UV index

With an average maximum UV index of 2, December is the month with the lowest UV index. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index of 2 in December converts into the following recommendations:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Updated: Jul 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are December temperatures?

The high-temperature during December is 50°F (10°C) and the low-temperature is 36.9°F (2.7°C). In September, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 89.6°F (32°C).

What is the most humid month?

The months with the highest humidity are March and December, with an average relative humidity of 79%.

What is the average humidity in December?

The average relative humidity in December is 79%.

How much does it rain in Collinwood in December?

In Collinwood, during December, the rain falls for 13.5 days and regularly aggregates up to 3.5" (89mm) of precipitation.

How much does it snow in December?

In Collinwood, in December, during 1.8 snowfall days, 0.83" (21mm) of snow is typically accumulated.

What is the month with the shortest days?

The month with the shortest days is December, 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 50min.

When is the sunrise / sunset in December in Collinwood?

On the first day of December, sunrise is at 6:41 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 4:49 pm CST.

How long on average sun shines in December?

In December, the average sunshine duration is 4.7h.

When is the lowest UV index?

The month with the lowest UV index is December, with an average maximum UV index of 2.

What is the UV index intensity in December?

In Collinwood, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from 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
Collinwood, TN

Average temperature in December - Collinwood, TN
  • Average high temperature in December: 50°F

The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is January (45.7°F).

  • Average low temperature in December: 36.9°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (32°F).

Average pressure in December
Collinwood, TN

Average pressure in December - Collinwood, 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
Collinwood, TN

Average wind speed in December - Collinwood, TN
  • Average wind speed in December: 7.8mph

The windiest month (with the highest average wind speed) is February (8.3mph).
The calmest month (with the lowest average wind speed) is July (4.6mph).

Average humidity in December
Collinwood, TN

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

The months with the highest relative humidity are March and December (79%).
The month with the lowest relative humidity is October (73%).

Average rainfall in December
Collinwood, TN

Average rainfall in December - Collinwood, TN
  • Average rainfall in December: 3.5"

The wettest month (with the highest rainfall) is February (4.84").
The driest months (with the least rainfall) are September and November (2.52").

Average rainfall days in December
Collinwood, TN

Average rainfall days in December - Collinwood, TN
  • Average rainfall days in December: 13.5 days

The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is November (10.4 days).

Average snowfall in December
Collinwood, TN

Average snowfall in December - Collinwood, TN
  • Average snowfall in December: 0.83"

The month with the highest snowfall is February (0.87").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Collinwood, TN

Average snowfall days in December - Collinwood, TN
  • Average snowfall days in December: 1.8 days

The month with the highest number of snowfall days is February (3.4 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
Collinwood, TN

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

The month with the longest days is June (Average daylight: 14h and 30min).
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 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in December
Collinwood, TN

Average sunshine days in December - Collinwood, TN
  • Average sunshine days in December: 14.8 days

The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is July (8.8 days).

Average UV index in December
Collinwood, TN

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

The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 2).

Average cloud cover in December
Collinwood, TN

Average cloud cover in December - Collinwood, TN
  • Average cloud cover in December: 50

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 30).

Average visibility in December
Collinwood, TN

Average visibility in December - Collinwood, TN
  • Average visibility in December: 6mi

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

Collinwood, Tennessee, USA

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