December weather forecast
Sulphur Rock, AR

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Weather in December

December, the first month of the winter in Sulphur Rock, is still a chilly month, with temperature in the range of an average high of 48.7°F (9.3°C) and an average low of 35.8°F (2.1°C).

Temperature

A mild drop in Sulphur Rock's average high-temperature is observed in December, transitioning from a moderate 57.4°F (14.1°C) in November to a chilly 48.7°F (9.3°C). December nights cool down to an average low-temperature of 35.8°F (2.1°C).

Humidity

In Sulphur Rock, the average relative humidity in December is 76%.

Rainfall

In Sulphur Rock, in December, it is raining for 10.2 days, with typically 2.76" (70mm) of accumulated precipitation. Throughout the year, there are 158 rainfall days, and 38.9" (988mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through March, November and December. In Sulphur Rock, in December, snow falls for 0.9 days, with typically accumulated 0.71" (18mm) of snow. In Sulphur Rock, during the entire year, snow falls for 6.8 days and aggregates up to 4.02" (102mm) of snow.

Daylight

The month with the shortest days in Sulphur Rock is December, with an average of 9h and 48min of daylight.
On the first day of the month, sunrise is at 6:58 am and sunset at 4:52 pm. On the last day of December, in Sulphur Rock, sunrise is at 7:15 am and sunset at 5:02 pm CST.

Sunshine

In Sulphur Rock, the average sunshine in December is 5.3h.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the average person.
Note: The daily high UV index of 2 during December translates into the following recommendations:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. When the Sun is at its strongest around midday, find shade and limit exposure. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.

Frequently asked questions

What is the average December temperature in Sulphur Rock?

In December, in Sulphur Rock, the average high-temperature is 48.7°F (9.3°C), and the average low-temperature is 35.8°F (2.1°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines air temperature and relative humidity, in September is computed to be 87.8°F (31°C).

What is the average humidity in December in Sulphur Rock?

The average relative humidity in December in Sulphur Rock is 76%.

How much does it rain in Sulphur Rock in December?

In December, the rain falls for 10.2 days. Throughout December, 2.76" (70mm) of precipitation is accumulated.

How many days does it snow in December in Sulphur Rock?

In Sulphur Rock, Arkansas, in December, during 0.9 snowfall days, 0.71" (18mm) of snow is typically accumulated.

What is the month with the shortest days in Sulphur Rock?

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

How many hours of daylight does Sulphur Rock have in December?

The average day length in December is 9h and 47min.

When are sunrise and sunset in December in Sulphur Rock?

In December, on the first day of the month, sunrise is at 6:58 am and sunset at 4:52 pm. On the last day of the month, in Sulphur Rock, Arkansas, sunrise is at 7:15 am and sunset at 5:02 pm CST.

How many hours of sunshine does Sulphur Rock have in December?

The average sunshine duration in December is 5.3h.

What is the month with the lowest UV index in Sulphur Rock?

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

What is the UV index reading in December in Sulphur Rock?

In December, the average daily maximum UV index in Sulphur Rock is 2. A UV Index reading of 2, and below, represents 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
Sulphur Rock, AR

Average temperature in December - Sulphur Rock, AR
  • Average high temperature in December: 48.7°F

The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (45.1°F).

  • Average low temperature in December: 35.8°F

The month with the highest average low temperature is July (70.5°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).

Average pressure in December
Sulphur Rock, AR

Average pressure in December - Sulphur Rock, 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 (29.93"Hg).

Average wind speed in December
Sulphur Rock, AR

Average wind speed in December - Sulphur Rock, AR
  • Average wind speed in December: 7.5mph

The windiest month (with the highest average wind speed) is February (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

Average humidity in December
Sulphur Rock, AR

Average humidity in December - Sulphur Rock, AR
  • Average humidity in December: 76%

The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (70%).

Average rainfall in December
Sulphur Rock, AR

Average rainfall in December - Sulphur Rock, AR
  • Average rainfall in December: 2.76"

The wettest month (with the highest rainfall) is April (4.8").
The driest month (with the least rainfall) is September (2.28").

Average rainfall days in December
Sulphur Rock, AR

Average rainfall days in December - Sulphur Rock, AR
  • Average rainfall days in December: 10.2 days

The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is January (9 days).

Average snowfall in December
Sulphur Rock, AR

Average snowfall in December - Sulphur Rock, AR
  • Average snowfall in December: 0.71"

The month with the highest snowfall is February (1.1").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Sulphur Rock, AR

Average snowfall days in December - Sulphur Rock, AR
  • Average snowfall days in December: 0.9 days

The month with the highest number of snowfall days is January (2.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Sulphur Rock, AR

Average daylight in December / Average sunshine in December - Sulphur Rock, 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 2min

The months with the most sunshine are June and July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).

Average sunshine days in December
Sulphur Rock, AR

Average sunshine days in December - Sulphur Rock, AR
  • Average sunshine days in December: 19.1 days

The months with the most sunshine days are November and December (19.1 days).
The month with the least sunshine days is July (11.1 days).

Average UV index in December
Sulphur Rock, AR

Average UV index in December - Sulphur Rock, 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).

Average cloud cover in December
Sulphur Rock, AR

Average cloud cover in December - Sulphur Rock, AR
  • Average cloud cover in December: 42

The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is June (Cloud cover 25).

Average visibility in December
Sulphur Rock, AR

Average visibility in December - Sulphur Rock, AR
  • 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).

Sulphur Rock, Arkansas, USA

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