December weather forecastJackson, MO

December

Weather in December

The first month of the winter, December, is still a chilly month in Jackson, Missouri, with an average temperature fluctuating between 45°F (7.2°C) and 32.5°F (0.3°C).

Temperature

A change in temperatures is noted as November gives way to December, with average highs reducing from a fresh 54.5°F (12.5°C) to a chilly 45°F (7.2°C). During December, an average low-temperature of 32.5°F (0.3°C) is observed.

Humidity

The average relative humidity in December is 77%.

Rainfall

In Jackson, in December, it is raining for 10.4 days, with typically 2.24" (57mm) of accumulated precipitation. In Jackson, during the entire year, the rain falls for 157.5 days and collects up to 34.41" (874mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall. In Jackson, in December, snow falls for 1.9 days, with typically accumulated 1.02" (26mm) of snow. Throughout the year, there are 13.1 snowfall days, and 5.83" (148mm) of snow is accumulated.

Daylight

With an average of 9h and 36min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 6:54 am and sunset at 4:41 pm. On the last day of December, sunrise is at 7:12 am and sunset at 4:51 pm CST.

Sunshine

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

UV index

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for average individuals.
Note: In December, a daily UV index of 2 turns into the following recommendations:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Updated: Aug 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

An average high-temperature, in December, in Jackson, is 45°F (7.2°C) and the average low-temperature is 32.5°F (0.3°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which factors the actual air temperature with the relative humidity, in September is calculated to be 84.2°F (29°C).

In December, the average relative humidity is 77%.

In Jackson, Missouri, during December, the rain falls for 10.4 days and regularly aggregates up to 2.24" (57mm) of precipitation.

In December, it is snowing for 1.9 days. Throughout December, 1.02" (26mm) of snow is accumulated.

December has the shortest days of the year, with an average of 9h and 36min of daylight.

The average day length in December is 9h and 38min.

In December, on the first day of the month, sunrise is at 6:54 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 4:51 pm CST.

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

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index.

In Jackson, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
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, MO

  • Average high temperature in December: 45°F

The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (40.5°F).

  • Average low temperature in December: 32.5°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (27.1°F).

Average pressure in December
Jackson, MO

  • Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in December
Jackson, MO

  • Average wind speed in December: 8.5mph

The windiest months (with the highest average wind speed) are January and February (9mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

Average humidity in December
Jackson, MO

  • Average humidity in December: 77%

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (70%).

Average rainfall in December
Jackson, MO

  • Average rainfall in December: 2.24"

The wettest month (with the highest rainfall) is April (4.25").
The driest month (with the least rainfall) is September (1.54").

Average rainfall days in December
Jackson, MO

  • Average rainfall days in December: 10.4 days

The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is January (9.8 days).

Average snowfall in December
Jackson, MO

  • Average snowfall in December: 1.02"

The month with the highest snowfall is February (2.32").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Jackson, MO

  • Average snowfall days in December: 1.9 days

The month with the highest number of snowfall days is January (4.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Jackson, MO

  • Average daylight in December: 9h and 36min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in December: 4h and 54min

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

Average sunshine days in December
Jackson, MO

  • Average sunshine days in December: 18.3 days

The month with the most sunshine days is October (19.1 days).
The month with the least sunshine days is July (11.8 days).

Average UV index in December
Jackson, MO

  • Average UV index in December: 2

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

Average cloud cover in December
Jackson, MO

  • Average cloud cover in December: 47

The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 27).

Average visibility in December
Jackson, MO

  • 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).