January Weather in Jackson, United States

Last updated: June 24, 2025

In January, the average temperature in Jackson, United States hovers around -8°C (18°F). Expect a minimum plunge to -34°C (-28°F) and, at best, a peak of 9°C (49°F). With an average humidity of 80% and 32 mm (1.3 in) of precipitation spread over 5 days, it’s a chilly and damp month to bundle up and embrace the winter vibes!

January Temperature in Jackson

In January in Jackson, the average temperature is -8°C (18°F). The maximum can reach 9°C (49°F) and the minimum can be as low as -34°C (-28°F). Travelers should be prepared for a wide range of temperatures and pack accordingly for cold weather.

January Weather in Jackson: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Jackson, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Jackson, January typically has an average temperature of -8°C (18°F), with highs reaching up to 9°C (49°F) and lows dropping to around -34°C (-28°F).

Data source: Temperature data for Jackson generated using information from the Copernicus Climate Change Service.

January Precipitation in Jackson

In Jackson in January, the precipitation amount is 32 mm (1.3 in) over the course of 5 days.

January Precipitation Trends in Jackson

The chart displays monthly precipitation patterns in Jackson, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Jackson, January typically receives around 32 mm (1.3 inches) of precipitation spread over approximately 5 days.

Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

January Humidity in Jackson

In Jackson in January, humidity is 80%. With an average temperature of -8°C (18°F), this humidity feels like walking through a thick fog, where the cold air clings to your skin and every breath seems to crystallize, making traveling a challenge as you navigate the slippery streets while bundled up against the biting chill.

January Average Humidity in Jackson

This chart illustrates the average monthly humidity levels in Jackson, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Jackson is approximately 80%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Jackson

In Jackson in January, 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.

Maximum UV Index Levels in Jackson for January

The chart shows the monthly maximum UV Index (UVI) for Jackson in January, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In January, the maximum UV index in Jackson typically reaches 3, which falls under the moderate exposure category.

Data source: Jackson January UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How January Weather in Jackson Compares to Other Months

Weather in Jackson varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Jackson, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Jackson, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-8°C (18°F)	32 mm (1.3 inches)	80%	moderate
February Weather	-8°C (18°F)	35 mm (1.4 inches)	84%	moderate
March Weather	1°C (34°F)	70 mm (2.7 inches)	75%	high
April Weather	7°C (45°F)	95 mm (3.8 inches)	79%	very high
May Weather	15°C (59°F)	136 mm (5.4 inches)	74%	very high
June Weather	22°C (72°F)	129 mm (5.1 inches)	81%	extreme
July Weather	23°C (74°F)	90 mm (3.5 inches)	82%	very high
August Weather	21°C (71°F)	113 mm (4.4 inches)	80%	very high
September Weather	18°C (65°F)	114 mm (4.5 inches)	75%	very high
October Weather	9°C (49°F)	94 mm (3.7 inches)	77%	moderate
November Weather	1°C (35°F)	32 mm (1.3 inches)	85%	moderate
December Weather	-3°C (26°F)	42 mm (1.6 inches)	83%	moderate