Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
Transitioning from November to December involves a subtle drop in average high-temperatures, descending from a moderate 57.7°F (14.3°C) to a chilly 49.5°F (9.7°C). During December, Jackson consistently records a temperature low averaging an icy 36.7°F (2.6°C).Humidity
In December, the average relative humidity is 78%.Rainfall
In Jackson, during December, the rain falls for 9.7 days and regularly aggregates up to 1.57" (40mm) of precipitation. Throughout the year, there are 125.3 rainfall days, and 15.47" (393mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March, November and December. December is the month with the most snowfall. Snow falls for 0.9 days and accumulates 0.31" (8mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 48min of daylight.On the first day of the month, sunrise is at 6:46 am and sunset at 4:42 pm. On the last day of December, sunrise is at 7:04 am and sunset at 4:52 pm CST.
Sunshine
In December, the average sunshine in Jackson is 4.9h.UV index
With an average maximum UV index of 2, December is the month with the lowest UV index. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the average person.Note: The daily maximum UV index of 2 in December interprets into the following advice:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Stay sun-safe with clothing that is both closely woven and worn loosely. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures?
What is the average humidity in December?
How much does it rain in December?
When does it snow the most?
How much does it snow in December?
What is the month with the shortest days in Jackson?
How many hours of daylight does Jackson have in December?
What time are sunrise and sunset in December?
How long on average sun shines in December?
What is the month with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Jackson, TN
- Average high temperature in December: 49.5°F
The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (45.7°F).
- Average low temperature in December: 36.7°F
The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (32°F).
Average pressure in December
Jackson, TN
- 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).
Average wind speed in December
Jackson, TN
- Average wind speed in December: 8.3mph
The windiest month (with the highest average wind speed) is February (9.1mph).
The calmest month (with the lowest average wind speed) is July (5.2mph).
Average humidity in December
Jackson, TN
- Average humidity in December: 78%
The month with the highest relative humidity is March (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Jackson, TN
- Average rainfall in December: 1.57"
The wettest month (with the highest rainfall) is July (1.85").
The driest month (with the least rainfall) is September (0.67").
Average rainfall days in December
Jackson, TN
- Average rainfall days in December: 9.7 days
The month with the highest number of rainy days is July (14.3 days).
The month with the least rainy days is November (7.1 days).
Average snowfall in December
Jackson, TN
- Average snowfall in December: 0.31"
The month with the highest snowfall is December (0.31").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Jackson, TN
- Average snowfall days in December: 0.9 days
The month with the highest number of snowfall days is February (2.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Jackson, TN
- Average daylight in December: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- 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).
Average sunshine days in December
Jackson, TN
- Average sunshine days in December: 19.7 days
The month with the most sunshine days is October (20.8 days).
The month with the least sunshine days is July (13.8 days).
Average UV index in December
Jackson, TN
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in December
Jackson, TN
- Average cloud cover in December: 48
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 26).
Average visibility in December
Jackson, TN
- 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).
Jackson, Tennessee, USA
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