December weather forecast
Marion, MS

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Weather in December

December, the first month of the winter in Marion, is also a moderate month, with an average temperature varying between 41.9°F (5.5°C) and 56.8°F (13.8°C).

Temperature

Transition into December subtly marks a drop in the average high-temperature, moderately moving from an enjoyable 64.6°F (18.1°C) in November to a moderate 56.8°F (13.8°C). In Marion, the average nighttime temperature during December is an icy 41.9°F (5.5°C).

Humidity

December is the most humid month, with an average relative humidity of 81%.

Rainfall

The month with the most rainfall is December, when the rain falls for 13 days and typically aggregates up to 3.78" (96mm) of precipitation.

Snowfall

January, February, November and December are months with snowfall. The months with the most snowfall in Marion are January and December, with an average 0.39" (10mm) of accumulated snow.

Daylight

December has the shortest days of the year, with an average of 10h and 6min of daylight.
On the first day of the month, sunrise is at 6:38 am and sunset at 4:49 pm. On the last day of December, sunrise is at 6:55 am and sunset at 4:59 pm CST.

Sunshine

The month with the least sunshine in Marion, Mississippi, is December, with an average of 4.8h of sunshine.

UV index

January and December, with an average maximum UV index of 3, are months with the lowest UV index in Marion. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: The UV index of 3 in December translates into these instructions:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
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Frequently asked questions

What are the temperatures in Marion in December?

Marion in December has an average high-temperature of 56.8°F (13.8°C) and an average low-temperature of 41.9°F (5.5°C). In September, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which factors the actual air temperature with the relative humidity, is computed to be 98.6°F (37°C).

What is the most humid month in Marion?

December is the most humid month in Marion, with an average relative humidity of 81%.

What is the average humidity in December in Marion?

The average relative humidity in December in Marion is 81%.

What is the rainiest month in Marion?

The month with the most rainfall in Marion, Mississippi, is December, when the rain falls for 13 days and typically aggregates up to 3.78" (96mm) of precipitation.

How much does it rain in Marion in December?

In December, in Marion, Mississippi, the rain falls for 13 days. Throughout December, 3.78" (96mm) of precipitation is accumulated.

When does it snow the most in Marion?

The months with the most snowfall in Marion, Mississippi, are January and December, with an average 0.39" (10mm) of accumulated snow.

How many days does it snow in December in Marion?

In Marion, Mississippi, in December, snow falls for 0.5 days, with typically accumulated 0.39" (10mm) of snow.

What is the month with the shortest days in Marion?

With an average of 10h and 6min of daylight, December has the shortest days of the year in Marion.

What is the average length of the day in December in Marion?

The average day length in December in Marion, Mississippi, is 10h and 4min.

When is the sunrise / sunset in December in Marion?

In December, on the first day of the month, sunrise is at 6:38 am and sunset at 4:49 pm. On the last day of the month, in Marion, sunrise is at 6:55 am and sunset at 4:59 pm CST.

What is the month with the least sunshine in Marion?

The month with the least sunshine in Marion is December, with an average of 4.8h of sunshine.

How many hours of sunshine does Marion have in December?

In December, the average sunshine duration in Marion, Mississippi, is 4.8h.

What is the month with the lowest UV index in Marion?

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

What is the UV index intensity in December in Marion?

In December, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a moderate vulnerability from exposure to the Sun's 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
Marion, MS

Average temperature in December - Marion, MS
  • Average high temperature in December: 56.8°F

The warmest month (with the highest average high temperature) is July (91.6°F).
The month with the lowest average high temperature is January (54.1°F).

  • Average low temperature in December: 41.9°F

The month with the highest average low temperature is August (71.8°F).
The coldest month (with the lowest average low temperature) is January (37.6°F).

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Average pressure in December
Marion, MS

Average pressure in December - Marion, MS
  • 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 (29.96"Hg).

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Average wind speed in December
Marion, MS

Average wind speed in December - Marion, MS
  • Average wind speed in December: 7.3mph

The windiest months (with the highest average wind speed) are January and February (7.6mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).

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Average humidity in December
Marion, MS

Average humidity in December - Marion, MS
  • Average humidity in December: 81%

The month with the highest relative humidity is December (81%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in December
Marion, MS

Average rainfall in December - Marion, MS
  • Average rainfall in December: 3.78"

The wettest month (with the highest rainfall) is December (3.78").
The driest month (with the least rainfall) is November (2.13").

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Average rainfall days in December
Marion, MS

Average rainfall days in December - Marion, MS
  • Average rainfall days in December: 13 days

The month with the highest number of rainy days is July (20.2 days).
The month with the least rainy days is November (8.4 days).

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Average snowfall in December
Marion, MS

Average snowfall in December - Marion, MS
  • Average snowfall in December: 0.39"

The months with the highest snowfall are January and December (0.39").
The months with the least snowfall are March, April, May, June, July, August, September and October (0").

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Average snowfall days in December
Marion, MS

Average snowfall days in December - Marion, MS
  • Average snowfall days in December: 0.5 days

The months with the highest number of snowfall days are January and February (0.8 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
Marion, MS

Average daylight in December / Average sunshine in December - Marion, MS
  • Average daylight in December: 10h and 1min

The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).

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Average sunshine days in December
Marion, MS

Average sunshine days in December - Marion, MS
  • Average sunshine days in December: 16 days

The month with the most sunshine days is October (20.6 days).
The month with the least sunshine days is July (8.7 days).

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Average UV index in December
Marion, MS

Average UV index in December - Marion, MS
  • 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 and December (UV index 3).

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Average cloud cover in December
Marion, MS

Average cloud cover in December - Marion, MS
  • Average cloud cover in December: 48

The months with the most cloud cover are February and December (Cloud cover 48).
The month with the least cloud cover is October (Cloud cover 30).

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Average visibility in December
Marion, MS

Average visibility in December - Marion, MS
  • 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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Marion, Mississippi, USA

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