December weather forecast
Greenville, MS

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Weather in December

Greenville closes the year with December, featuring temperatures not straying far from 54.5°F (12.5°C) during the day. The return of higher humidity levels, reaching 78%, foretell the imminent arrival of the cooler winter days. Especially with lower sunlight hours, it is evident that the winter solstice is near. Despite decreased daylight, Greenville residents still enjoy ample sun-filled days before the year concludes. The end of the year also welcomes a slight uptick in wind speed as winter takes full effect.

Temperature

The onset of December is marked by a minor decrease in temperature, transitioning from a refreshing 62.1°F (16.7°C) in November to a cool 54.5°F (12.5°C). Greenville observes an average nighttime temperature of 41.9°F (5.5°C) during December.

Humidity

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

Rainfall

In Greenville, during December, the rain falls for 8.9 days and regularly aggregates up to 1.57" (40mm) of precipitation. Throughout the year, in Greenville, there are 122.3 rainfall days, and 17.64" (448mm) of precipitation is accumulated.

Snowfall

March through December are months without snowfall in Greenville.

Daylight

With an average of 10h and 0min of daylight, December has the shortest days of the year.
On the first day of December in Greenville, sunrise is at 6:50 am and sunset at 4:56 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 5:07 pm CST.

Sunshine

In Greenville, the average sunshine in December is 4.9h.

UV index

The months with the lowest UV index in Greenville, Mississippi, are January and December, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: An average UV index of 3 in December transforms into this advice:
Heed the precautions - It is counselled to guard against solar damage. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
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Frequently asked questions

What are December temperatures in Greenville?

In Greenville, 54.5°F (12.5°C) is the average high-temperature and 41.9°F (5.5°C) is the average low-temperature during December. In September, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is computed to be 96.8°F (36°C).

What is the most humid month in Greenville?

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

What is the average humidity in December in Greenville?

The average relative humidity in December is 78%.

How much does it rain in Greenville in December?

In December, in Greenville, the rain falls for 8.9 days. Throughout December, 1.57" (40mm) of precipitation is accumulated.

When it does not snow in Greenville?

March through December are months without snowfall.

Does it snow in Greenville in December?

In Greenville, Mississippi, in December, it doesn't snow. In January, it regularly snows.

What is the month with the shortest days in Greenville?

The month with the shortest days in Greenville is December, with an average of 10h and 0min of daylight.

How many hours of daylight does Greenville have in December?

In December, the average day length in Greenville, Mississippi, is 9h and 59min.

When is the sunrise / sunset in December in Greenville?

On the first day of December in Greenville, sunrise is at 6:50 am and sunset at 4:56 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 5:07 pm CST.

How many hours of sunshine does Greenville have in December?

In Greenville, Mississippi, the average sunshine duration in December is 4.9h.

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

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

What is the UV index reading in December in Greenville?

In Greenville, Mississippi, the average daily maximum UV index in December is 3. A UV Index value of 3 to 5 symbolizes a medium hazard to health from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Greenville, MS

Average temperature in December - Greenville, MS
  • Average high temperature in December: 54.5°F

The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (51.4°F).

  • Average low temperature in December: 41.9°F

The month with the highest average low temperature is July (73.6°F).
The coldest month (with the lowest average low temperature) is January (37.6°F).

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Average pressure in December
Greenville, MS

Average pressure in December - Greenville, 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 (29.95"Hg).

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Average wind speed in December
Greenville, MS

Average wind speed in December - Greenville, MS
  • Average wind speed in December: 8.9mph

The windiest month (with the highest average wind speed) is February (9.8mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

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Average humidity in December
Greenville, MS

Average humidity in December - Greenville, MS
  • Average humidity in December: 78%

The months with the highest relative humidity are February, March and December (78%).
The month with the lowest relative humidity is October (66%).

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Average rainfall in December
Greenville, MS

Average rainfall in December - Greenville, MS
  • Average rainfall in December: 1.57"

The wettest month (with the highest rainfall) is April (1.97").
The driest month (with the least rainfall) is September (0.71").

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Average rainfall days in December
Greenville, MS

Average rainfall days in December - Greenville, MS
  • Average rainfall days in December: 8.9 days

The month with the highest number of rainy days is July (15.4 days).
The month with the least rainy days is October (7 days).

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Average snowfall in December
Greenville, MS

Average snowfall in December - Greenville, MS
  • Average snowfall in December: 0"

The month with the highest snowfall is February (0.12").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in December
Greenville, MS

Average snowfall days in December - Greenville, MS
  • Average snowfall days in December: 0.3 days

The month with the highest number of snowfall days is 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
Greenville, MS

Average daylight in December / Average sunshine in December - Greenville, MS
  • Average daylight in December: 10h and 0min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

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Average sunshine days in December
Greenville, MS

Average sunshine days in December - Greenville, MS
  • Average sunshine days in December: 20.1 days

The month with the most sunshine days is October (22.9 days).
The month with the least sunshine days is July (13.9 days).

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Average UV index in December
Greenville, MS

Average UV index in December - Greenville, MS
  • Average UV index in December: 3

The months with the highest UV index are June, July and August (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
Greenville, MS

Average cloud cover in December - Greenville, MS
  • Average cloud cover in December: 46

The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is June (Cloud cover 26).

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Average visibility in December
Greenville, MS

Average visibility in December - Greenville, MS
  • 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).

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Greenville, Mississippi, USA

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