December weather forecastChester, AR

December

Weather in December

December, the first month of the winter in Chester, is also a frosty month, with an average temperature fluctuating between 35.1°F (1.7°C) and 49.1°F (9.5°C).

Temperature

A shift in the average high-temperature occurs in December, reducing from a moderate 59.2°F (15.1°C) in November to a chilly 49.1°F (9.5°C). The month of December records an average low-temperature of 35.1°F (1.7°C).

Humidity

In December, the average relative humidity is 75%.

Rainfall

In December, the rain falls for 9.4 days. Throughout December, 2.68" (68mm) of precipitation is accumulated. In Chester, during the entire year, the rain falls for 145.7 days and collects up to 35.79" (909mm) of precipitation.

Snowfall

Months with snowfall are January through March, November and December. In December, it is snowing for 0.7 days. Throughout December, 0.71" (18mm) of snow is accumulated. Throughout the year, there are 4.6 snowfall days, and 2.6" (66mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 48min of daylight.
On the first day of the month, sunrise is at 7:08 am and sunset at 5:03 pm. On the last day of December, sunrise is at 7:26 am and sunset at 5:13 pm CST.

Sunshine

The months with the least sunshine in Chester are January and December, with an average of 5.5h of sunshine.

UV index

The month with the lowest UV index is December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for average individuals.
Note: The UV index of 2 in December translates into these instructions:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. During bright days, sunglasses that offer UVA and UVB defense are recommended. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.

Frequently asked questions

The high-temperature, in December, in Chester, is 49.1°F (9.5°C), while the low-temperature averages to 35.1°F (1.7°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which factors the actual air temperature with the relative humidity, in September is computed to be 93.2°F (34°C).

The average relative humidity in December is 75%.

In December, the rain falls for 9.4 days. Throughout December, 2.68" (68mm) of precipitation is accumulated.

In Chester, in December, snow falls for 0.7 days, with typically accumulated 0.71" (18mm) of snow.

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

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

In December, on the first day of the month, sunrise is at 7:08 am and sunset at 5:03 pm. On the last day of the month, in Chester, sunrise is at 7:26 am and sunset at 5:13 pm CST.

The months with the least sunshine in Chester are January and December, with an average of 5.5h of sunshine.

The average sunshine duration in December is 5.5h.

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

In December, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Chester, AR

  • Average high temperature in December: 49.1°F

The warmest month (with the highest average high temperature) is July (92.8°F).
The month with the lowest average high temperature is January (47.7°F).

  • Average low temperature in December: 35.1°F

The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (30.9°F).

Average pressure in December
Chester, 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
Chester, AR

  • Average wind speed in December: 6.3mph

The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is July (4.7mph).

Average humidity in December
Chester, AR

  • Average humidity in December: 75%

The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are July and August (70%).

Average rainfall in December
Chester, AR

  • Average rainfall in December: 2.68"

The wettest month (with the highest rainfall) is May (4.49").
The driest month (with the least rainfall) is January (2.13").

Average rainfall days in December
Chester, AR

  • Average rainfall days in December: 9.4 days

The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is January (8.5 days).

Average snowfall in December
Chester, AR

  • Average snowfall in December: 0.71"

The month with the highest snowfall is January (0.75").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Chester, AR

  • Average snowfall days in December: 0.7 days

The month with the highest number of snowfall days is February (1.6 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).

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

  • Average daylight in December: 9h and 48min

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 30min

The months with the most sunshine are July and August (Average sunshine: 10h and 42min).
The months with the least sunshine are January and December (Average sunshine: 5h and 30min).

Average sunshine days in December
Chester, AR

  • Average sunshine days in December: 19.1 days

The month with the most sunshine days is January (20.6 days).
The month with the least sunshine days is May (13.1 days).

Average UV index in December
Chester, AR

  • 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).

Average cloud cover in December
Chester, AR

  • Average cloud cover in December: 40

The months with the most cloud cover are February and March (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 25).

Average visibility in December
Chester, AR

  • Average visibility in December: 6mi

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