December weather forecast
Jackson, MS

The Capitol building and beautiful tree park in Jackson, Mississippi
The Capitol building and beautiful tree park in Jackson, Mississippi

Weather in December

December, the first month of the winter in Jackson, is also a moderate month, with an average temperature fluctuating between 57.2°F (14°C) and 42.4°F (5.8°C).

Temperature

In Jackson, the average high-temperature in December slightly decreases from an enjoyable 64.2°F (17.9°C) in November to a mild 57.2°F (14°C). The average low-temperature, in Jackson, is 42.4°F (5.8°C).

Humidity

February and December, with an average relative humidity of 80%, are the most humid months in Jackson.

Rainfall

In Jackson, Mississippi, it is raining for 11.5 days, with typically 2.56" (65mm) of accumulated precipitation. Throughout the year, there are 152.1 rainfall days, and 29.72" (755mm) of precipitation is accumulated.

Snowfall

March through December are months without snowfall.

Daylight

December has the shortest days of the year, with an average of 10h and 4min of daylight.
On the first day of December in Jackson, sunrise is at 6:44 am and sunset at 4:55 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 5:05 pm CST.

Sunshine

In December, the average sunshine is 5h.

UV index

January and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The daily maximum UV index of 3 in December interpret into the following advice:
Take precautions - Protection against skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What are the most humid months in Jackson?

The months with the highest humidity in Jackson, Mississippi, are February and December, with an average relative humidity of 80%.

What is the average humidity in December in Jackson?

The average relative humidity in December in Jackson, Mississippi, is 80%.

How much does it rain in Jackson in December?

In Jackson, in December, during 11.5 rainfall days, 2.56" (65mm) of precipitation is typically accumulated.

When it does not snow in Jackson?

March through December are months without snowfall in Jackson.

Does it snow in Jackson in December?

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

What is the month with the shortest days in Jackson?

With an average of 10h and 4min of daylight, December has the shortest days of the year in Jackson.

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

In Jackson, the average day length in December is 10h and 4min.

What time are sunrise and sunset in December in Jackson?

In December, on the first day of the month, sunrise is at 6:44 am and sunset at 4:55 pm. On the last day of the month, in Jackson, Mississippi, sunrise is at 7:01 am and sunset at 5:05 pm CST.

How many hours of sunshine does Jackson have in December?

In December, the average sunshine duration in Jackson is 5h.

When is the lowest UV index in Jackson?

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

What is the UV index intensity in December in Jackson?

The average daily maximum UV index in December in Jackson is 3. A UV Index estimate of 3 to 5 represents a moderate vulnerability from exposure to Sun's UV rays.
Average humidity
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
Jackson, MS

Average temperature in December - Jackson, MS
  • Average high temperature in December: 57.2°F

The warmest months (with the highest average high temperature) are July and August (91.8°F).
The month with the lowest average high temperature is January (54.7°F).

  • Average low temperature in December: 42.4°F

The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is January (38.5°F).

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Average pressure in December
Jackson, MS

Average pressure in December - Jackson, 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
Jackson, MS

Average wind speed in December - Jackson, MS
  • Average wind speed in December: 7.7mph

The windiest months (with the highest average wind speed) are January and February (8mph).
The calmest months (with the lowest average wind speed) are July and August (5.1mph).

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Average humidity in December
Jackson, MS

Average humidity in December - Jackson, MS
  • Average humidity in December: 80%

The months with the highest relative humidity are February and December (80%).
The month with the lowest relative humidity is October (69%).

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Average rainfall in December
Jackson, MS

Average rainfall in December - Jackson, MS
  • Average rainfall in December: 2.56"

The wettest month (with the highest rainfall) is April (3.46").
The driest month (with the least rainfall) is October (1.81").

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Average rainfall days in December
Jackson, MS

Average rainfall days in December - Jackson, MS
  • Average rainfall days in December: 11.5 days

The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is October (8.5 days).

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Average snowfall in December
Jackson, MS

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

The month with the highest snowfall is January (0.35").
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
Jackson, MS

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

The month with the highest number of snowfall days is January (1 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
Jackson, MS

Average daylight in December / Average sunshine in December - Jackson, MS
  • Average daylight in December: 10h and 4min

The month with the longest days is June (Average daylight: 14h and 14min).
The month with the shortest days is December (Average daylight: 10h and 4min).

  • Average sunshine in December: 5h and 0min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

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Average sunshine days in December
Jackson, MS

Average sunshine days in December - Jackson, MS
  • Average sunshine days in December: 17.8 days

The month with the most sunshine days is October (21.4 days).
The month with the least sunshine days is July (11.8 days).

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Average UV index in December
Jackson, MS

Average UV index in December - Jackson, 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
Jackson, MS

Average cloud cover in December - Jackson, MS
  • Average cloud cover in December: 47

The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is October (Cloud cover 28).

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Average visibility in December
Jackson, MS

Average visibility in December - Jackson, 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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