December weather forecast
Saint Charles, AR

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Weather in December

December, the first month of the winter in Saint Charles, is still a cool month, with an average temperature fluctuating between 40.1°F (4.5°C) and 52.5°F (11.4°C).

Temperature

The shift from November to December includes a small decrease in the average high-temperature, from a comfortable 60.8°F (16°C) to a cool 52.5°F (11.4°C). December's nights observe an average temperature of 40.1°F (4.5°C).

Humidity

March and December, with an average relative humidity of 78%, are the most humid months in Saint Charles.

Rainfall

In December, the rain falls for 11.7 days. Throughout December, 4.06" (103mm) of precipitation is accumulated. Throughout the year, there are 163.1 rainfall days, and 42.13" (1070mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through March, November and December. In Saint Charles, in December, snow falls for 0.7 days, with typically accumulated 0.35" (9mm) of snow. In Saint Charles, during the entire year, snow falls for 4.1 days and aggregates up to 2.17" (55mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 54min of daylight.
On the first day of December, sunrise is at 6:53 am and sunset at 4:54 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 5:05 pm CST.

Sunshine

The average sunshine in December is 5.2h.

UV index

The months with the lowest UV index in Saint Charles are January, February and December, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the average person.
Note: A maximum daily UV index of 3 during December morphs into the following directions:
Guard yourself - Avoiding sunburn is suggested. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Boost your sun resistance with garments that are densely woven yet spacious. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.

Frequently asked questions

What is the usual temperature for Saint Charles in December?

An average high-temperature, in December, in Saint Charles, is 52.5°F (11.4°C) and the average low-temperature is 40.1°F (4.5°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines air temperature and relative humidity, in September is estimated at 93.2°F (34°C).

What are the most humid months?

The months with the highest humidity are March and December, with an average relative humidity of 78%.

What is the average humidity in December?

In December, the average relative humidity is 78%.

How many days does it rain in December?

In Saint Charles, in December, it is raining for 11.7 days, with typically 4.06" (103mm) of accumulated precipitation.

How much does it snow in December?

In Saint Charles, in December, snow falls for 0.7 days, with typically accumulated 0.35" (9mm) of snow.

What is the month with the shortest days?

With an average of 9h and 54min of daylight, December has the shortest days of the year.

How many hours of daylight does Saint Charles have in December?

In Saint Charles, the average day length in December is 9h and 54min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 6:53 am and sunset at 4:54 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 5:05 pm CST.

How long on average sun shines in December?

In December, the average sunshine duration is 5.2h.

What are the months with the lowest UV index?

The months with the lowest UV index are January, February and December, with an average maximum UV index of 3.

How high is the UV index in December?

In December, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate health threat 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
Saint Charles, AR

Average temperature in December - Saint Charles, AR
  • Average high temperature in December: 52.5°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 (49.3°F).

  • Average low temperature in December: 40.1°F

The month with the highest average low temperature is July (73°F).
The coldest month (with the lowest average low temperature) is January (36°F).

Average pressure in December
Saint Charles, AR

Average pressure in December - Saint Charles, 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).

Average wind speed in December
Saint Charles, AR

Average wind speed in December - Saint Charles, AR
  • Average wind speed in December: 8.5mph

The windiest month (with the highest average wind speed) is February (9.5mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

Average humidity in December
Saint Charles, AR

Average humidity in December - Saint Charles, AR
  • Average humidity in December: 78%

The months with the highest relative humidity are March and December (78%).
The month with the lowest relative humidity is October (67%).

Average rainfall in December
Saint Charles, AR

Average rainfall in December - Saint Charles, AR
  • Average rainfall in December: 4.06"

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
Saint Charles, AR

Average rainfall days in December - Saint Charles, AR
  • Average rainfall days in December: 11.7 days

The month with the highest number of rainy days is July (18.2 days).
The month with the least rainy days is October (9.5 days).

Average snowfall in December
Saint Charles, AR

Average snowfall in December - Saint Charles, AR
  • Average snowfall in December: 0.35"

The month with the highest snowfall is February (0.79").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Saint Charles, AR

Average snowfall days in December - Saint Charles, AR
  • Average snowfall days in December: 0.7 days

The months with the highest number of snowfall days are January and February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Saint Charles, AR

Average daylight in December / Average sunshine in December - Saint Charles, AR
  • Average daylight in December: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in December: 5h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

Average sunshine days in December
Saint Charles, AR

Average sunshine days in December - Saint Charles, AR
  • Average sunshine days in December: 16.6 days

The month with the most sunshine days is October (19.9 days).
The month with the least sunshine days is August (10.3 days).

Average UV index in December
Saint Charles, AR

Average UV index in December - Saint Charles, AR
  • Average UV index in December: 3

The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).

Average cloud cover in December
Saint Charles, AR

Average cloud cover in December - Saint Charles, AR
  • Average cloud cover in December: 43

The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is June (Cloud cover 24).

Average visibility in December
Saint Charles, AR

Average visibility in December - Saint Charles, 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).

Saint Charles, Arkansas, USA

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