December weather forecast
Northern Hills, TN

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Weather in December

The first month of the winter, December, is also a fresh month in Northern Hills, Tennessee, with temperature in the range of an average high of 50.2°F (10.1°C) and an average low of 36.1°F (2.3°C).

Temperature

Transition into December subtly marks a drop in the average high-temperature, moderately moving from a mild 57.6°F (14.2°C) in November to a fresh 50.2°F (10.1°C). In December, Northern Hills experiences an average nighttime temperature of 36.1°F (2.3°C).

Humidity

With an average relative humidity of 80%, December is the most humid month.

Rainfall

The wettest months are February and December, with an average 1.18" (30mm) of rainfall.

Snowfall

Months with snowfall are January through March and December. December is the first month it typically snows. Throughout December, in the average 0.3 snowfall days, it receives 0.04" (1mm) of snow. In Northern Hills, during the entire year, snow falls for 2.9 days and aggregates up to 0.47" (12mm) 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 7:31 am and sunset at 5:29 pm. On the last day of December, sunrise is at 7:49 am and sunset at 5:39 pm EST.

Sunshine

December has the least sunshine of the year, with an average of 5h of sunshine.

UV index

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index of 2 in December interprets into the following recommendations:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Updated: Jul 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Northern Hills in December?

In Northern Hills, in December, the average high-temperature is 50.2°F (10.1°C), and the average low-temperature is 36.1°F (2.3°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in September is calculated to be 86°F (30°C).

What is the most humid month?

With an average relative humidity of 80%, December is the most humid month.

What is the average humidity in December?

The average relative humidity in December is 80%.

What is the wettest month?

The months with the most rainfall are February and December, with an average 1.18" (30mm) of precipitation.

How many days does it rain in December?

In December, the rain falls for 8.3 days. Throughout December, 1.18" (30mm) of precipitation is accumulated.

When does it start snowing?

December is the first month it typically snows. Throughout December, in the average 0.3 snowfall days, it receives 0.04" (1mm) of snow.

What is the month with the shortest days?

With an average of 9h and 48min of daylight, December has the shortest days of the year.

What is the average length of the day in December?

In December, the average day length is 9h and 50min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:31 am and sunset at 5:29 pm. On the last day of the month, sunrise is at 7:49 am and sunset at 5:39 pm EST.

What is the month with the least sunshine?

With an average of 5h of sunshine, December has the least sunshine of the year.

How many hours of sunshine does Northern Hills have in December?

The average sunshine duration in December is 5h.

What are the months with the lowest UV index?

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

What is the UV index reading in December?

In December, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a low health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Northern Hills, TN

Average temperature in December - Northern Hills, TN
  • Average high temperature in December: 50.2°F

The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (46°F).

  • Average low temperature in December: 36.1°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (30.9°F).

Average pressure in December
Northern Hills, TN

Average pressure in December - Northern Hills, 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 (29.98"Hg).

Average wind speed in December
Northern Hills, TN

Average wind speed in December - Northern Hills, TN
  • Average wind speed in December: 5.8mph

The windiest month (with the highest average wind speed) is February (6.5mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).

Average humidity in December
Northern Hills, TN

Average humidity in December - Northern Hills, TN
  • Average humidity in December: 80%

The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are June, October and November (75%).

Average rainfall in December
Northern Hills, TN

Average rainfall in December - Northern Hills, TN
  • Average rainfall in December: 1.18"

The wettest months (with the highest rainfall) are February and December (1.18").
The driest month (with the least rainfall) is September (0.43").

Average rainfall days in December
Northern Hills, TN

Average rainfall days in December - Northern Hills, TN
  • Average rainfall days in December: 8.3 days

The month with the highest number of rainy days is July (11.7 days).
The month with the least rainy days is October (6.1 days).

Average snowfall in December
Northern Hills, TN

Average snowfall in December - Northern Hills, TN
  • Average snowfall in December: 0.04"

The month with the highest snowfall is February (0.31").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in December
Northern Hills, TN

Average snowfall days in December - Northern Hills, TN
  • Average snowfall days in December: 0.3 days

The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Northern Hills, TN

Average daylight in December / Average sunshine in December - Northern Hills, 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: 5h and 0min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

Average sunshine days in December
Northern Hills, TN

Average sunshine days in December - Northern Hills, TN
  • Average sunshine days in December: 21.3 days

The month with the most sunshine days is October (23.6 days).
The month with the least sunshine days is July (16.8 days).

Average UV index in December
Northern Hills, TN

Average UV index in December - Northern Hills, 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
Northern Hills, TN

Average cloud cover in December - Northern Hills, TN
  • Average cloud cover in December: 49

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
Northern Hills, TN

Average visibility in December - Northern Hills, TN
  • Average visibility in December: 5mi

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

Northern Hills, Tennessee, USA

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