January Weather in Hattiesburg, United States

Last updated: June 24, 2025

In January, the average temperature in Hattiesburg, United States hovers around 10°C (51°F), making it a crisp time of year. Temperature fluctuations can be quite dramatic, with minimums dipping to -10°C (15°F) and maximums soaring to 27°C (82°F). On average, expect about 117 mm (4.6 in) of precipitation over 9 days, coupled with a high humidity level of 82%. Embrace the variety that this month brings!

January Temperature in Hattiesburg

In January in Hattiesburg, the average temperature is 10°C (51°F). Maximums can reach 27°C (82°F), while minimums can dip as low as -10°C (15°F). Travelers should be prepared for a wide range of temperatures, ensuring they pack accordingly for both warm and chilly conditions.

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

The chart illustrates January temperature patterns in Hattiesburg, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hattiesburg, January typically has an average temperature of 10°C (51°F), with highs reaching up to 27°C (82°F) and lows dropping to around -10°C (15°F).

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

January Precipitation in Hattiesburg

In Hattiesburg in January, the total precipitation amount is 117 mm (4.6 in) spread over a period of 9 days.

January Precipitation Trends in Hattiesburg

The chart displays monthly precipitation patterns in Hattiesburg, 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 Hattiesburg, January typically receives around 117 mm (4.6 inches) of precipitation spread over approximately 9 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

January Humidity in Hattiesburg

In Hattiesburg in January humidity is 82%. With an average temperature of 10°C (51°F), this humidity feels like a damp chill that clings to your skin, making outdoor adventures less appealing and prompting travelers to seek cozy indoor activities or warm drinks to counter the brisk air.

January Average Humidity in Hattiesburg

This chart illustrates the average monthly humidity levels in Hattiesburg, 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 Hattiesburg is approximately 82%, 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 Hattiesburg

In Hattiesburg 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 Hattiesburg.

Maximum UV Index Levels in Hattiesburg for January

The chart shows the monthly maximum UV Index (UVI) for Hattiesburg 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 Hattiesburg typically reaches 5, which falls under the moderate exposure category.

Data source: Hattiesburg 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 Hattiesburg Compares to Other Months

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

This table compares monthly weather conditions in Hattiesburg, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	10°C (51°F)	117 mm (4.6 inches)	82%	moderate
February Weather	14°C (57°F)	112 mm (4.4 inches)	80%	very high
March Weather	17°C (63°F)	102 mm (4.0 inches)	80%	very high
April Weather	19°C (67°F)	131 mm (5.2 inches)	78%	extreme
May Weather	24°C (75°F)	146 mm (5.8 inches)	73%	extreme
June Weather	26°C (80°F)	197 mm (7.8 inches)	71%	extreme
July Weather	27°C (81°F)	150 mm (5.9 inches)	79%	extreme
August Weather	27°C (81°F)	179 mm (7.0 inches)	78%	extreme
September Weather	26°C (79°F)	104 mm (4.1 inches)	80%	very high
October Weather	22°C (71°F)	100 mm (3.9 inches)	76%	very high
November Weather	14°C (58°F)	79 mm (3.1 inches)	83%	high
December Weather	12°C (54°F)	133 mm (5.2 inches)	87%	moderate