December weather forecast
Knoxville, AR

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Weather in December

The first month of the winter, December, is also a frosty month in Knoxville, Arkansas, with an average temperature fluctuating between 33.8°F (1°C) and 49.1°F (9.5°C).

Temperature

The decrease of average high-temperatures is mild in December, with a decline from a moderate 58.1°F (14.5°C) in November to a chilly 49.1°F (9.5°C). December brings an average low-temperature of 33.8°F (1°C) to Knoxville.

Humidity

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

Rainfall

In Knoxville, during December, the rain falls for 9.6 days and regularly aggregates up to 2.64" (67mm) of precipitation. Throughout the year, there are 146.9 rainfall days, and 36.42" (925mm) of precipitation is accumulated.

Snowfall

January through March, November and December are months with snowfall in Knoxville. In December, in Knoxville, Arkansas, it is snowing for 0.2 days. Throughout December, 0.39" (10mm) of snow is accumulated. In Knoxville, during the entire year, snow falls for 4 days and aggregates up to 2.72" (69mm) of snow.

Daylight

With an average of 9h and 48min of daylight, December has the shortest days of the year in Knoxville.
On the first day of the month, sunrise is at 7:04 am and sunset at 5:00 pm. On the last day of December, sunrise is at 7:22 am and sunset at 5:11 pm CST.

Sunshine

The average sunshine in December is 5.5h.

UV index

January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In December, the UV index of 2 transforms into the following advice:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
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Frequently asked questions

What is the usual temperature for Knoxville in December?

In Knoxville, in December, the average high-temperature is 49.1°F (9.5°C), and the average low-temperature is 33.8°F (1°C). The average heat index (a.k.a. 'real feel', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in September is calculated to be 91.4°F (33°C).

What is the average humidity in December in Knoxville?

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

How much does it rain in Knoxville in December?

In December, in Knoxville, Arkansas, the rain falls for 9.6 days. Throughout December, 2.64" (67mm) of precipitation is accumulated.

How many days does it snow in December in Knoxville?

In December, in Knoxville, it is snowing for 0.2 days. Throughout December, 0.39" (10mm) of snow is accumulated.

What is the month with the shortest days in Knoxville?

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

How many hours of daylight does Knoxville have in December?

In December, the average day length in Knoxville, Arkansas, is 9h and 49min.

When are sunrise and sunset in December in Knoxville?

In December, on the first day of the month, sunrise is at 7:04 am and sunset at 5:00 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 5:11 pm CST.

How long on average sun shines in December in Knoxville?

In Knoxville, the average sunshine duration in December is 5.5h.

When is the lowest UV index in Knoxville?

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

What is the UV index intensity in December in Knoxville?

In Knoxville, Arkansas, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a low health threat from unsafe 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
Knoxville, AR

Average temperature in December - Knoxville, AR
  • Average high temperature in December: 49.1°F

The warmest month (with the highest average high temperature) is July (91.4°F).
The month with the lowest average high temperature is January (46.9°F).

  • Average low temperature in December: 33.8°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).

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Average pressure in December
Knoxville, AR

Average pressure in December - Knoxville, AR
  • 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).

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Average wind speed in December
Knoxville, AR

Average wind speed in December - Knoxville, AR
  • Average wind speed in December: 5.1mph

The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest months (with the lowest average wind speed) are July and August (4.2mph).

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Average humidity in December
Knoxville, AR

Average humidity in December - Knoxville, AR
  • Average humidity in December: 77%

The months with the highest relative humidity are March and May (79%).
The months with the lowest relative humidity are July and August (72%).

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Average rainfall in December
Knoxville, AR

Average rainfall in December - Knoxville, AR
  • Average rainfall in December: 2.64"

The wettest months (with the highest rainfall) are April and May (4.41").
The driest months (with the least rainfall) are July and September (2.36").

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Average rainfall days in December
Knoxville, AR

Average rainfall days in December - Knoxville, AR
  • Average rainfall days in December: 9.6 days

The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is November (9 days).

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Average snowfall in December
Knoxville, AR

Average snowfall in December - Knoxville, AR
  • Average snowfall in December: 0.39"

The months with the highest snowfall are January and February (0.79").
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
Knoxville, AR

Average snowfall days in December - Knoxville, AR
  • Average snowfall days in December: 0.2 days

The months with the highest number of snowfall days are January and February (1.5 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in December /
Average sunshine in December
Knoxville, AR

Average daylight in December / Average sunshine in December - Knoxville, AR
  • 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 3min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 5h and 24min).

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Average sunshine days in December
Knoxville, AR

Average sunshine days in December - Knoxville, AR
  • Average sunshine days in December: 20.1 days

The month with the most sunshine days is January (20.3 days).
The month with the least sunshine days is May (13.2 days).

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Average UV index in December
Knoxville, AR

Average UV index in December - Knoxville, AR
  • Average UV index in December: 2

The months with the highest UV index are June and July (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
Knoxville, AR

Average cloud cover in December - Knoxville, AR
  • Average cloud cover in December: 41

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 28).

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Average visibility in December
Knoxville, AR

Average visibility in December - Knoxville, AR
  • Average visibility in December: 5mi

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

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Knoxville, Arkansas, USA

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