December weather forecastHeath, TN

December

Weather in December

December, the first month of the winter in Heath, is also a frosty month, with an average temperature ranging between min 30.6°F (-0.8°C) and max 44.4°F (6.9°C).

Temperature

As Heath, Tennessee, enters December, the average high-temperature subtly lowers from the a cool 52°F (11.1°C) of November to a frosty 44.4°F (6.9°C). An average low-temperature of 30.6°F (-0.8°C) is observed during December nights.

Humidity

The months with the highest humidity in Heath are February, March and December, with an average relative humidity of 80%.

Rainfall

In Heath, in December, it is raining for 11.2 days, with typically 3.03" (77mm) of accumulated precipitation. In Heath, during the entire year, the rain falls for 176.9 days and collects up to 31.61" (803mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. The month with the most snowfall in Heath is December, when snow falls for 7 days and typically aggregates up to 6.5" (165mm) of snow.

Daylight

December has the shortest days of the year in Heath, Tennessee, with an average of 9h and 42min of daylight.
On the first day of the month, sunrise is at 7:20 am and sunset at 5:11 pm. On the last day of December, sunrise is at 7:38 am and sunset at 5:22 pm EST.

Sunshine

The average sunshine in December in Heath, Tennessee, is 5.2h.

UV index

The months with the lowest UV index in Heath are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: In December, the maximum UV index of 2 translates into these guidelines:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The high-temperature during December is 44.4°F (6.9°C) and the low-temperature is 30.6°F (-0.8°C). In July, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is computed to be 86°F (30°C).

The months with the highest humidity in Heath, Tennessee, are February, March and December, with an average relative humidity of 80%.

In Heath, the average relative humidity in December is 80%.

In Heath, in December, during 11.2 rainfall days, 3.03" (77mm) of precipitation is typically accumulated.

The month with the most snowfall in Heath, Tennessee, is December, when snow falls for 7 days and typically aggregates up to 6.5" (165mm) of snow.

In December, in Heath, it is snowing for 7 days. Throughout December, 6.5" (165mm) of snow is accumulated.

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

In Heath, the average day length in December is 9h and 43min.

On the first day of December in Heath, Tennessee, sunrise is at 7:20 am and sunset at 5:11 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 5:22 pm EST.

In December, the average sunshine duration is 5.2h.

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

In Heath, Tennessee, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal hazard to health from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Heath, TN

  • Average high temperature in December: 44.4°F

The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in December: 30.6°F

The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

Average pressure in December
Heath, TN

  • Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).

Average wind speed in December
Heath, TN

  • Average wind speed in December: 6.9mph

The windiest month (with the highest average wind speed) is January (7.7mph).
The calmest month (with the lowest average wind speed) is August (4mph).

Average humidity in December
Heath, TN

  • Average humidity in December: 80%

The months with the highest relative humidity are February, March and December (80%).
The month with the lowest relative humidity is November (76%).

Average rainfall in December
Heath, TN

  • Average rainfall in December: 3.03"

The wettest month (with the highest rainfall) is February (3.31").
The driest month (with the least rainfall) is September (1.57").

Average rainfall days in December
Heath, TN

  • Average rainfall days in December: 11.2 days

The month with the highest number of rainy days is July (19.2 days).
The month with the least rainy days is November (10.1 days).

Average snowfall in December
Heath, TN

  • Average snowfall in December: 6.5"

The month with the highest snowfall is December (6.5").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Heath, TN

  • Average snowfall days in December: 7 days

The month with the highest number of snowfall days is January (9.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Heath, TN

  • Average daylight in December: 9h and 42min

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: 5h and 12min

The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).

Average sunshine days in December
Heath, TN

  • Average sunshine days in December: 13.9 days

The month with the most sunshine days is October (17.5 days).
The month with the least sunshine days is February (8.9 days).

Average UV index in December
Heath, TN

  • Average UV index in December: 2

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in December
Heath, TN

  • Average cloud cover in December: 51

The month with the most cloud cover is February (Cloud cover 56).
The months with the least cloud cover are June, July and August (Cloud cover 37).

Average visibility in December
Heath, TN

  • Average visibility in December: 5mi

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