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January Weather in Jackson, United States

Last updated: June 24, 2025

The average temperature in Jackson, United States during January is 11°C (51°F). However, temperatures can vary significantly, with minimums dipping to -9°C (17°F) and maximums soaring to 28°C (83°F). Expect 118 mm (4.6 in) of precipitation over 9 days and a notable average humidity of 82%.

January Temperature in Jackson

In January in Jackson, the average temperature is 11°C (51°F). Maximum can reach 28°C (83°F) and minimum can be as low as -9°C (17°F). Be prepared for a wide range of temperatures, so pack both summer and winter clothing for your trip.

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 11°C (51°F), with highs reaching up to 28°C (83°F) and lows dropping to around -9°C (17°F).
JanFebMarAprMayJunJulAugSepOctNovDec515763677580828279725854
Data source: Temperature data for Jackson generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in Jackson

In Jackson in January, the precipitation amount is 118 mm (4.6 in) over the course of 9 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 118 mm (4.6 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec11810711312911117913411911211369139
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Jackson

In Jackson in January, humidity is 82%. With an average temperature of 11°C (51°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities uncomfortable and requiring additional layers to stay warm while exploring.

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 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%80%80%78%73%71%79%78%80%76%83%87%
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 reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Jackson.

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 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec579111111111110864
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.
 TemperaturePrecipitationHumidityUV
January Weather11°C (51°F)118 mm (4.6 inches)82%moderate
February Weather14°C (57°F)107 mm (4.2 inches)80%high
March Weather17°C (63°F)113 mm (4.4 inches)80%very high
April Weather19°C (67°F)129 mm (5.1 inches)78%extreme
May Weather24°C (75°F)111 mm (4.4 inches)73%extreme
June Weather27°C (80°F)179 mm (7.0 inches)71%extreme
July Weather28°C (82°F)134 mm (5.3 inches)79%extreme
August Weather28°C (82°F)119 mm (4.7 inches)78%extreme
September Weather26°C (79°F)112 mm (4.4 inches)80%very high
October Weather22°C (72°F)113 mm (4.5 inches)76%very high
November Weather14°C (58°F)69 mm (2.7 inches)83%high
December Weather12°C (54°F)139 mm (5.5 inches)87%moderate

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