Jackson
Mississippi, USA
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Jackson, MS

The view of the Capitol building in Jackson, Mississippi, from a beautiful tree park
The view of the Capitol building in Jackson, Mississippi, from a beautiful tree park
December, the first month of the winter, in Jackson, is still a mild month, with average temperature ranging between max 57.2°F (14°C) and min 42.4°F (5.8°C).

Temperature

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

Humidity

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

Rainfall

In December, the rain falls for 11.5 days. Throughout December, 2.56" (65mm) of precipitation is accumulated. In Jackson, during the entire year, the rain falls for 152.1 days and collects up to 29.72" (755mm) of precipitation.

Snowfall

In Jackson snow does not fall in March through December.

Daylight

With an average of 10.1h of daylight, December has the shortest days of the year.

Sunshine

The average sunshine in December is 5h.

UV index

January and December, with an average maximum UV index of 3, are months with the lowest UV index in Jackson. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to the Sun's UV rays for average individuals.
Note: In December, the average maximum UV index of 3 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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.

What is the temperature in December in Jackson?

In Jackson, Mississippi, in December, the average high-temperature is 57.2°F (14°C), and the average low-temperature is 42.4°F (5.8°C).

What is the most humid month in Jackson?

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

What is the average humidity in December in Jackson?

In December, the average relative humidity in Jackson is 80%.

How many days does it rain in December in Jackson?

In Jackson, Mississippi, in December, it is raining for 11.5 days, with typically 2.56" (65mm) of accumulated precipitation.

Does it snow in Jackson in December?

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

When it does not snow in Jackson?

In Jackson snow does not fall in March through December.

What is the month with the shortest days in Jackson?

With an average of 10.1h of daylight, December has the shortest days of the year.

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

In Jackson, Mississippi, the average length of the day in December is 10.1h.

How many hours of sunshine does Jackson have in December?

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

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

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

How high is the UV index in December in Jackson?

In Jackson, Mississippi, the average daily maximum UV index in December is 3. A UV Index reading of 3 to 5 represents a medium hazard to health from the exposure to the Sun's UV rays.
Average temperature in December - Jackson, MS
  • Average high temperature in December: 14°C

Warmest months (with the highest average high temperature) are July and August (33.2°C).
The month with the lowest average high temperature is January (12.6°C).

  • Average low temperature in December: 5.8°C

The month with the highest average low temperature is July (22.4°C).
The coldest month (with the lowest average low temperature) is January (3.6°C).

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

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

Average rainfall in December - Jackson, MS
  • Average rainfall in December: 65mm

The wettest month (with the highest rainfall) is April (88mm).
The driest month (with the lowest rainfall) is October (46mm).

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 lowest number of rainy days is October (8.5 days).

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

The month with the highest snowfall is January (9mm).
Months with the lowest snowfall are March, April, May, June, July, August, September, October, November and December (0mm).

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).
Months with the lowest number of snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in December / Average sunshine in December - Jackson, MS
  • Average daylight in December: 10.1h

The month with the longest days is June (Average daylight: 14.3h).
The month with shortest days is December (Average daylight: 10.1h).

  • Average sunshine in December: 5h

The month with most sunshine is June (Average sunshine: 10.6h).
The month with least sunshine is February (Average sunshine: 4.9h).

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

Months with the highest UV index are June, July and August (UV index 7).
Months with the lowest UV index are January and December (UV index 3).