December weather forecast
Acton, TN

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Weather in December

December, the first month of the winter in Acton, is still a cool month, with an average temperature fluctuating between 50.9°F (10.5°C) and 37.8°F (3.2°C).

Temperature

December heralds a minor drop in average high-temperature, sliding from November's refreshing 59°F (15°C) to a fresh 50.9°F (10.5°C). During the month of December, the nighttime temperature falls to an average of 37.8°F (3.2°C).

Humidity

March and December, with an average relative humidity of 80%, are the most humid months.

Rainfall

In Acton, Tennessee, in December, during 13.2 rainfall days, 3.07" (78mm) of precipitation is typically accumulated. Throughout the year, there are 166.5 rainfall days, and 37.95" (964mm) of precipitation is accumulated.

Snowfall

January through March, November and December are months with snowfall in Acton. In December, it is snowing for 0.6 days. Throughout December, 0.08" (2mm) of snow is accumulated. Throughout the year, in Acton, there are 5.9 snowfall days, and 1.61" (41mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 48min of daylight.
On the first day of December in Acton, sunrise is at 6:44 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 4:52 pm CST.

Sunshine

The average sunshine in December is 4.6h.

UV index

The month with the lowest UV index is December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: A maximum high daily UV index of 2 during December translates into the following directions:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
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Frequently asked questions

What are December temperatures in Acton?

In December, in Acton, the average high-temperature is 50.9°F (10.5°C), and the average low-temperature is 37.8°F (3.2°C). In September, the average heat index (a.k.a. 'real feel', 'feels like'), which combines relative humidity and air temperature, is estimated at 91.4°F (33°C).

What are the most humid months in Acton?

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

What is the average humidity in December in Acton?

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

How many days does it rain in December in Acton?

In Acton, in December, during 13.2 rainfall days, 3.07" (78mm) of precipitation is typically accumulated.

How many days does it snow in December in Acton?

In Acton, in December, during 0.6 snowfall days, 0.08" (2mm) of snow is typically accumulated.

What is the month with the shortest days in Acton?

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

How many hours of daylight does Acton have in December?

In Acton, the average day length in December is 9h and 51min.

When are sunrise and sunset in December in Acton?

On the first day of December in Acton, sunrise is at 6:44 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 4:52 pm CST.

How many hours of sunshine does Acton have in December?

In December, the average sunshine duration in Acton is 4.6h.

What is the month with the lowest UV index in Acton?

December is the month with the lowest UV index, with an average maximum UV index of 2.

How high is the UV index in December in Acton?

In Acton, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability 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
Acton, TN

Average temperature in December - Acton, TN
  • Average high temperature in December: 50.9°F

The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (47.5°F).

  • Average low temperature in December: 37.8°F

The month with the highest average low temperature is July (70.2°F).
The coldest month (with the lowest average low temperature) is January (32.9°F).

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Average pressure in December
Acton, TN

Average pressure in December - Acton, 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 (29.96"Hg).

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Average wind speed in December
Acton, TN

Average wind speed in December - Acton, TN
  • Average wind speed in December: 7.3mph

The windiest month (with the highest average wind speed) is February (7.9mph).
The calmest month (with the lowest average wind speed) is July (4.7mph).

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Average humidity in December
Acton, TN

Average humidity in December - Acton, TN
  • Average humidity in December: 80%

The months with the highest relative humidity are March and December (80%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in December
Acton, TN

Average rainfall in December - Acton, TN
  • Average rainfall in December: 3.07"

The wettest month (with the highest rainfall) is February (4.69").
The driest month (with the least rainfall) is September (2.01").

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Average rainfall days in December
Acton, TN

Average rainfall days in December - Acton, TN
  • Average rainfall days in December: 13.2 days

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is November (10.2 days).

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Average snowfall in December
Acton, TN

Average snowfall in December - Acton, TN
  • Average snowfall in December: 0.08"

The month with the highest snowfall is February (0.51").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in December
Acton, TN

Average snowfall days in December - Acton, TN
  • Average snowfall days in December: 0.6 days

The month with the highest number of snowfall days is February (2.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in December / Average sunshine in December - Acton, 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: 4h and 4min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

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Average sunshine days in December
Acton, TN

Average sunshine days in December - Acton, TN
  • Average sunshine days in December: 16.6 days

The month with the most sunshine days is October (19.1 days).
The month with the least sunshine days is July (11.8 days).

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Average UV index in December
Acton, TN

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

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

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Average cloud cover in December
Acton, TN

Average cloud cover in December - Acton, TN
  • Average cloud cover in December: 50

The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are June, August and September (Cloud cover 30).

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Average visibility in December
Acton, TN

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

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

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Acton, Tennessee, USA

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