December weather forecast
Dallas Heights, TN

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Weather in December

The first month of the winter, December, is also a fresh month in Dallas Heights, Tennessee, with an average temperature varying between 50.2°F (10.1°C) and 36.1°F (2.3°C).

Temperature

December ushers in a minute temperature change, with average high-temperatures reducing from November's moderate 57.6°F (14.2°C) to a fresh 50.2°F (10.1°C). In the month of December, Dallas Heights's average low-temperature falls to a cold 36.1°F (2.3°C).

Humidity

The most humid month is December, with an average relative humidity of 80%.

Rainfall

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

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. Throughout the year, there are 2.9 snowfall days, and 0.47" (12mm) of snow is accumulated.

Daylight

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

Sunshine

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

UV index

The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The daily high UV index of 2 in December translates into this advice:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Updated: Jun 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Dallas Heights in December?

The high-temperature, in December, in Dallas Heights, records 50.2°F (10.1°C), while the low-temperature is 36.1°F (2.3°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines air temperature and relative humidity, in September is appraised at 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 rainiest 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?

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

How many hours of daylight does Dallas Heights have in December?

The average day length in December in Dallas Heights is 9h and 50min.

When is the sunrise / 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 in Dallas Heights?

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

How long on average sun shines in December in Dallas Heights?

In Dallas Heights, the average sunshine duration in December is 5h.

When is the lowest UV index?

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

How high is the UV index in December?

The average daily maximum UV index in December 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
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Dallas Heights, TN

Average temperature in December - Dallas Heights, 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
Dallas Heights, TN

Average pressure in December - Dallas Heights, 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
Dallas Heights, TN

Average wind speed in December - Dallas Heights, 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
Dallas Heights, TN

Average humidity in December - Dallas Heights, 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
Dallas Heights, TN

Average rainfall in December - Dallas Heights, 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
Dallas Heights, TN

Average rainfall days in December - Dallas Heights, 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
Dallas Heights, TN

Average snowfall in December - Dallas Heights, 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
Dallas Heights, TN

Average snowfall days in December - Dallas Heights, 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
Dallas Heights, TN

Average daylight in December / Average sunshine in December - Dallas Heights, 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
Dallas Heights, TN

Average sunshine days in December - Dallas Heights, 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
Dallas Heights, TN

Average UV index in December - Dallas Heights, 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
Dallas Heights, TN

Average cloud cover in December - Dallas Heights, 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
Dallas Heights, TN

Average visibility in December - Dallas Heights, 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).

Dallas Heights, Tennessee, USA

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