December weather forecast
Trimble, TN

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Weather in December

The first month of the winter, December, is still a chilly month in Trimble, Tennessee, with temperature in the range of an average high of 47.7°F (8.7°C) and an average low of 35.8°F (2.1°C).

Temperature

Setting in of December comes with a decrease in the average high-temperature, moving from a mild 57°F (13.9°C) in November to a chilly 47.7°F (8.7°C). Throughout the month of December, Trimble observes an average nighttime temperature of 35.8°F (2.1°C).

Humidity

In December, the average relative humidity is 77%.

Rainfall

In Trimble, in December, during 12.3 rainfall days, 3.43" (87mm) of precipitation is typically accumulated. In Trimble, during the entire year, the rain falls for 164.5 days and collects up to 39.41" (1001mm) of precipitation.

Snowfall

January through March, November and December are months with snowfall. In December, it is snowing for 0.8 days. Throughout December, 0.28" (7mm) of snow is accumulated. Throughout the year, there are 7.6 snowfall days, and 4.53" (115mm) 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 December, sunrise is at 6:49 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 4:52 pm CST.

Sunshine

The average sunshine in December is 5h.

UV index

The months with the lowest UV index are 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 rays for ordinary individuals.
Note: The maximum UV index of 2 during December translates into these guidelines:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Updated: Aug 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Trimble in December?

An average high-temperature, in December, in Trimble, is 47.7°F (8.7°C) and the average low-temperature is 35.8°F (2.1°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in September is evaluated at 86°F (30°C).

What is the average humidity in December?

The average relative humidity in December in Trimble is 77%.

How much does it rain in December?

In Trimble, in December, during 12.3 rainfall days, 3.43" (87mm) of precipitation is typically accumulated.

How much does it snow in December?

In Trimble, in December, during 0.8 snowfall days, 0.28" (7mm) of snow is typically accumulated.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 42min of daylight.

What is the average length of the day in December?

The average day length in December is 9h and 44min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 6:49 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 4:52 pm CST.

How long on average sun shines in December?

The average sunshine duration in December is 5h.

When is the lowest UV index?

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

How high is the UV index in December?

In Trimble, Tennessee, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation.
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
Trimble, TN

Average temperature in December - Trimble, TN
  • Average high temperature in December: 47.7°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 (43.9°F).

  • Average low temperature in December: 35.8°F

The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).

Average pressure in December
Trimble, TN

Average pressure in December - Trimble, TN
  • Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in December
Trimble, TN

Average wind speed in December - Trimble, TN
  • Average wind speed in December: 8.8mph

The windiest month (with the highest average wind speed) is February (9.6mph).
The calmest month (with the lowest average wind speed) is July (5.6mph).

Average humidity in December
Trimble, TN

Average humidity in December - Trimble, TN
  • Average humidity in December: 77%

The month with the highest relative humidity is March (79%).
The month with the lowest relative humidity is October (69%).

Average rainfall in December
Trimble, TN

Average rainfall in December - Trimble, TN
  • Average rainfall in December: 3.43"

The wettest month (with the highest rainfall) is April (4.45").
The driest month (with the least rainfall) is September (1.61").

Average rainfall days in December
Trimble, TN

Average rainfall days in December - Trimble, TN
  • Average rainfall days in December: 12.3 days

The month with the highest number of rainy days is May (17.1 days).
The months with the least rainy days are October and November (10.4 days).

Average snowfall in December
Trimble, TN

Average snowfall in December - Trimble, TN
  • Average snowfall in December: 0.28"

The month with the highest snowfall is February (1.42").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Trimble, TN

Average snowfall days in December - Trimble, TN
  • Average snowfall days in December: 0.8 days

The month with the highest number of snowfall days is January (2.8 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
Trimble, TN

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

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

Average sunshine days in December
Trimble, TN

Average sunshine days in December - Trimble, TN
  • Average sunshine days in December: 17 days

The month with the most sunshine days is October (19.2 days).
The month with the least sunshine days is May (12.2 days).

Average UV index in December
Trimble, TN

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

The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are February and December (UV index 2).

Average cloud cover in December
Trimble, TN

Average cloud cover in December - Trimble, TN
  • Average cloud cover in December: 46

The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 24).

Average visibility in December
Trimble, TN

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

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

Trimble, Tennessee, USA

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