December weather forecast
Mammoth Spring, AR

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Weather in December

The first month of the winter, December, is still a chilly month in Mammoth Spring, Arkansas, with an average temperature fluctuating between 46.8°F (8.2°C) and 32.5°F (0.3°C).

Temperature

As November transitions to December, the average high-temperature falls from a refreshing 56.1°F (13.4°C) to a frosty 46.8°F (8.2°C). Mammoth Spring's average low-temperature in the month of December is recorded at a wintry 32.5°F (0.3°C).

Humidity

In Mammoth Spring, the average relative humidity in December is 77%.

Rainfall

In Mammoth Spring, during December, the rain falls for 9.3 days and regularly aggregates up to 2.56" (65mm) of precipitation. Throughout the year, there are 148 rainfall days, and 35.39" (899mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, November and December. In Mammoth Spring, in December, during 1.6 snowfall days, 0.98" (25mm) of snow is typically accumulated. In Mammoth Spring, during the entire year, snow falls for 8.9 days and aggregates up to 4.57" (116mm) of snow.

Daylight

With an average of 9h and 42min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:00 am and sunset at 4:50 pm. On the last day of December, sunrise is at 7:17 am and sunset at 5:01 pm CST.

Sunshine

In December, the average sunshine in Mammoth Spring, Arkansas, is 5h.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: A typical high UV index of 2 in December suggests the following recommendations:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
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Frequently asked questions

What are December temperatures in Mammoth Spring?

In December, in Mammoth Spring, the average high-temperature is 46.8°F (8.2°C), and the average low-temperature is 32.5°F (0.3°C). In September, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is computed to be 86°F (30°C).

What is the average humidity in December in Mammoth Spring?

In December, the average relative humidity in Mammoth Spring, Arkansas, is 77%.

How much does it rain in Mammoth Spring in December?

In December, in Mammoth Spring, the rain falls for 9.3 days. Throughout December, 2.56" (65mm) of precipitation is accumulated.

How much does it snow in Mammoth Spring in December?

In Mammoth Spring, during December, snow falls for 1.6 days and regularly aggregates up to 0.98" (25mm) of snow.

What is the month with the shortest days in Mammoth Spring?

The month with the shortest days is December, with an average of 9h and 42min of daylight.

What is the average length of the day in December in Mammoth Spring?

In December, the average day length is 9h and 43min.

When is the sunrise / sunset in December in Mammoth Spring?

On the first day of December in Mammoth Spring, sunrise is at 7:00 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 5:01 pm CST.

How many hours of sunshine does Mammoth Spring have in December?

In Mammoth Spring, Arkansas, the average sunshine duration in December is 5h.

When is the lowest UV index in Mammoth Spring?

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

What is the UV index reading in December in Mammoth Spring?

The average daily maximum UV index in December in Mammoth Spring is 2. A UV Index value of 2, and less, symbolizes 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
Mammoth Spring, AR

Average temperature in December - Mammoth Spring, AR
  • Average high temperature in December: 46.8°F

The warmest month (with the highest average high temperature) is July (89.4°F).
The month with the lowest average high temperature is January (43.3°F).

  • Average low temperature in December: 32.5°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).

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Average pressure in December
Mammoth Spring, AR

Average pressure in December - Mammoth Spring, AR
  • Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in December
Mammoth Spring, AR

Average wind speed in December - Mammoth Spring, AR
  • Average wind speed in December: 7.6mph

The windiest months (with the highest average wind speed) are January, February, March and April (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).

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Average humidity in December
Mammoth Spring, AR

Average humidity in December - Mammoth Spring, AR
  • Average humidity in December: 77%

The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in December
Mammoth Spring, AR

Average rainfall in December - Mammoth Spring, AR
  • Average rainfall in December: 2.56"

The wettest month (with the highest rainfall) is May (4.25").
The driest month (with the least rainfall) is September (1.57").

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Average rainfall days in December
Mammoth Spring, AR

Average rainfall days in December - Mammoth Spring, AR
  • Average rainfall days in December: 9.3 days

The month with the highest number of rainy days is May (16.5 days).
The month with the least rainy days is January (8.6 days).

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Average snowfall in December
Mammoth Spring, AR

Average snowfall in December - Mammoth Spring, AR
  • Average snowfall in December: 0.98"

The month with the highest snowfall is February (1.26").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
Mammoth Spring, AR

Average snowfall days in December - Mammoth Spring, AR
  • Average snowfall days in December: 1.6 days

The month with the highest number of snowfall days is February (2.8 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
Mammoth Spring, AR

Average daylight in December / Average sunshine in December - Mammoth Spring, AR
  • 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 24min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

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Average sunshine days in December
Mammoth Spring, AR

Average sunshine days in December - Mammoth Spring, AR
  • Average sunshine days in December: 19.6 days

The month with the most sunshine days is December (19.6 days).
The month with the least sunshine days is May (12.3 days).

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Average UV index in December
Mammoth Spring, AR

Average UV index in December - Mammoth Spring, AR
  • 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 January and December (UV index 2).

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Average cloud cover in December
Mammoth Spring, AR

Average cloud cover in December - Mammoth Spring, AR
  • Average cloud cover in December: 46

The month with the most cloud cover is March (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 29).

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Average visibility in December
Mammoth Spring, AR

Average visibility in December - Mammoth Spring, AR
  • Average visibility in December: 6mi

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

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Mammoth Spring, Arkansas, USA

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