December weather forecast
Wynn, TN

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Weather in December

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

Temperature

As November transitions into December, Wynn sees a gentle drop in the average high-temperature, transitioning from a fresh 54.7°F (12.6°C) to a frosty 46.9°F (8.3°C). An average minimum temperature of 33.4°F (0.8°C) marks the month of December in Wynn, Tennessee.

Humidity

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

Rainfall

In Wynn, in December, during 12.6 rainfall days, 2.83" (72mm) of precipitation is typically accumulated. In Wynn, during the entire year, the rain falls for 167 days and collects up to 33.62" (854mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall. In Wynn, in December, during 3.1 snowfall days, 0.91" (23mm) of snow is typically accumulated. Throughout the year, in Wynn, there are 17.6 snowfall days, and 6.02" (153mm) of snow is accumulated.

Daylight

With an average of 9h and 42min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:30 am and sunset at 5:20 pm. On the last day of December, in Wynn, sunrise is at 7:47 am and sunset at 5:31 pm EST.

Sunshine

In Wynn, the average sunshine in December is 4.8h.

UV index

The months with the lowest UV index in Wynn are January, February and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the average person.
Note: In December, a regular UV index of 2 translates into these guidelines:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average December temperature in Wynn?

In Wynn, 46.9°F (8.3°C) is the average high-temperature and 33.4°F (0.8°C) is the average low-temperature during December. In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is computed to be 95°F (35°C).

What is the most humid month in Wynn?

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

What is the average humidity in December in Wynn?

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

How much does it rain in Wynn in December?

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

How much does it snow in Wynn in December?

In Wynn, in December, during 3.1 snowfall days, 0.91" (23mm) of snow is typically accumulated.

What is the month with the shortest days in Wynn?

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

How many hours of daylight does Wynn have in December?

The average day length in December is 9h and 43min.

When is the sunrise / sunset in December in Wynn?

In December, on the first day of the month, sunrise is at 7:30 am and sunset at 5:20 pm. On the last day of the month, in Wynn, Tennessee, sunrise is at 7:47 am and sunset at 5:31 pm EST.

How long on average sun shines in December in Wynn?

The average sunshine duration in December in Wynn is 4.8h.

What are the months with the lowest UV index in Wynn?

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

What is the UV index reading in December in Wynn?

The average daily maximum UV index in December in Wynn, Tennessee, is 2. A UV Index of 2, and less, symbolizes a minimal hazard to health 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
Wynn, TN

Average temperature in December - Wynn, 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
Wynn, TN

Average pressure in December - Wynn, 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
Wynn, TN

Average wind speed in December - Wynn, 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
Wynn, TN

Average humidity in December - Wynn, 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
Wynn, TN

Average rainfall in December - Wynn, 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
Wynn, TN

Average rainfall days in December - Wynn, 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
Wynn, TN

Average snowfall in December - Wynn, 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
Wynn, TN

Average snowfall days in December - Wynn, 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
Wynn, TN

Average daylight in December / Average sunshine in December - Wynn, 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
Wynn, TN

Average sunshine days in December - Wynn, 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
Wynn, TN

Average UV index in December - Wynn, 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
Wynn, TN

Average cloud cover in December - Wynn, 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
Wynn, TN

Average visibility in December - Wynn, 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).

Wynn, Tennessee, USA

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