Last updated: June 24, 2025
In December, the average temperature in Jackson, United States hovers around 4°C (39°F). Expect a chill, as temperatures can dip as low as -13°C (9°F), with pleasant highs reaching up to 20°C (68°F). Be prepared for some rain, as 113 mm (4.4 in) of precipitation is typically spread over 11 days. Don’t forget that the air will feel quite humid, with an average humidity of 87%!
In December in Jackson, the average temperature is 4°C (39°F). The maximum can reach 20°C (68°F) and the minimum can be as low as -13°C (9°F). Be prepared for a wide range of temperatures to make the most of your travel experience.
In Jackson in December, the precipitation amount is 113 mm (4.4 in) over the course of 11 days.
In Jackson in December, humidity is 87%. With an average temperature of 4°C (39°F), this humidity feels like a damp chill that seeps into your bones, making travel uncomfortable and gritty, as the air hangs heavy and clings to your skin.
In Jackson in December, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Jackson, you can check the information here.
UV Risk Categories
Weather in Jackson varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Jackson, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 1°C (34°F) | 85 mm (3.4 inches) | 88% | moderate |
| February Weather | 3°C (39°F) | 123 mm (4.9 inches) | 88% | moderate |
| March Weather | 8°C (46°F) | 112 mm (4.4 inches) | 87% | high |
| April Weather | 12°C (55°F) | 130 mm (5.1 inches) | 85% | very high |
| May Weather | 18°C (66°F) | 127 mm (5.0 inches) | 81% | very high |
| June Weather | 23°C (73°F) | 142 mm (5.6 inches) | 82% | very high |
| July Weather | 25°C (78°F) | 106 mm (4.2 inches) | 81% | very high |
| August Weather | 24°C (75°F) | 115 mm (4.5 inches) | 73% | very high |
| September Weather | 21°C (70°F) | 102 mm (4.0 inches) | 73% | very high |
| October Weather | 15°C (60°F) | 112 mm (4.4 inches) | 78% | high |
| November Weather | 7°C (45°F) | 81 mm (3.2 inches) | 89% | moderate |
| December Weather | 4°C (39°F) | 113 mm (4.4 inches) | 87% | moderate |