December weather forecast
Arno, TN

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Weather in December

December, the first month of the winter in Arno, is also a frosty month, with an average temperature fluctuating between 36.1°F (2.3°C) and 49.1°F (9.5°C).

Temperature

The commencement of December indicates a gentle shift in the average high-temperature, receding from November's refreshing 57.7°F (14.3°C) to a frosty 49.1°F (9.5°C). Nighttime temperature dips to a mean of 36.1°F (2.3°C) during December.

Humidity

With an average relative humidity of 78%, December is the most humid month.

Rainfall

In Arno, during December, the rain falls for 13 days and regularly aggregates up to 3.27" (83mm) of precipitation. In Arno, during the entire year, the rain falls for 174.9 days and collects up to 39.33" (999mm) of precipitation.

Snowfall

Months with snowfall are January through April, November and December. In Arno, during December, snow falls for 2.2 days and regularly aggregates up to 0.63" (16mm) of snow. In Arno, during the entire year, snow falls for 10.1 days and aggregates up to 3.66" (93mm) 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 6:39 am and sunset at 4:33 pm. On the last day of December, sunrise is at 6:56 am and sunset at 4:43 pm CST.

Sunshine

In Arno, the average sunshine in December is 4.6h.

UV index

January 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 exposure to the Sun's UV radiation for the average person.
Note: In December, the maximum UV index of 2 translates into these guidelines:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.

Frequently asked questions

What is the usual temperature for Arno in December?

During December, Arno experiences an average high-temperature of 49.1°F (9.5°C) and a low-temperature of 36.1°F (2.3°C). In September, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is estimated at 86°F (30°C).

What is the most humid month?

The most humid month is December, with an average relative humidity of 78%.

What is the average humidity in December?

In Arno, the average relative humidity in December is 78%.

How much does it rain in December?

In Arno, in December, it is raining for 13 days, with typically 3.27" (83mm) of accumulated precipitation.

How much does it snow in December?

In Arno, during December, snow falls for 2.2 days and regularly aggregates up to 0.63" (16mm) of snow.

What is the month with the shortest days?

The month with the shortest days in Arno is December, with an average of 9h and 48min of daylight.

What is the average length of the day in December?

In Arno, the average day length in December is 9h and 47min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 6:39 am and sunset at 4:33 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 4:43 pm CST.

How many hours of sunshine does Arno have in December?

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

What is the month with the lowest UV index?

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

What is the UV index intensity in December?

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

Average temperature in December
Arno, TN

Average temperature in December - Arno, TN
  • Average high temperature in December: 49.1°F

The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (45.1°F).

  • Average low temperature in December: 36.1°F

The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (30.7°F).

Average pressure in December
Arno, TN

Average pressure in December - Arno, 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 (29.97"Hg).

Average wind speed in December
Arno, TN

Average wind speed in December - Arno, TN
  • Average wind speed in December: 7.5mph

The windiest month (with the highest average wind speed) is February (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

Average humidity in December
Arno, TN

Average humidity in December - Arno, TN
  • Average humidity in December: 78%

The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is October (73%).

Average rainfall in December
Arno, TN

Average rainfall in December - Arno, TN
  • Average rainfall in December: 3.27"

The wettest month (with the highest rainfall) is July (4.41").
The driest months (with the least rainfall) are September and November (2.32").

Average rainfall days in December
Arno, TN

Average rainfall days in December - Arno, TN
  • Average rainfall days in December: 13 days

The month with the highest number of rainy days is July (19.9 days).
The month with the least rainy days is November (9.8 days).

Average snowfall in December
Arno, TN

Average snowfall in December - Arno, TN
  • Average snowfall in December: 0.63"

The months with the highest snowfall are January and February (0.94").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Arno, TN

Average snowfall days in December - Arno, TN
  • Average snowfall days in December: 2.2 days

The month with the highest number of snowfall days is February (3.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in December / Average sunshine in December - Arno, 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 30min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

Average sunshine days in December
Arno, TN

Average sunshine days in December - Arno, TN
  • Average sunshine days in December: 15.5 days

The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is July (9.5 days).

Average UV index in December
Arno, TN

Average UV index in December - Arno, 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 and December (UV index 2).

Average cloud cover in December
Arno, TN

Average cloud cover in December - Arno, TN
  • Average cloud cover in December: 52

The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 29).

Average visibility in December
Arno, TN

Average visibility in December - Arno, 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).

Arno, Tennessee, USA

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