January Weather in Rock Hall, United States

Last updated: June 24, 2025

In Rock Hall, United States, the average temperature in January hovers around 2°C (37°F), making it a chilly time of year. Expect minimum temperatures to plunge to a brisk -12°C (11°F), while highs can reach a milder 14°C (58°F). This month sees approximately 78 mm (3.1 in) of precipitation spread across 9 days, contributing to an average humidity of 84%. Prepare for the season with cozy layers and a good umbrella!

January Temperature in Rock Hall

In January in Rock Hall, the average temperature is 2°C (37°F), with maximums reaching up to 14°C (58°F) and minimums plunging as low as -12°C (11°F). It's essential to pack warm clothing if you're planning to travel during this time.

January Weather in Rock Hall: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Rock Hall, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rock Hall, January typically has an average temperature of 2°C (37°F), with highs reaching up to 14°C (58°F) and lows dropping to around -12°C (11°F).

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

January Precipitation in Rock Hall

In Rock Hall in January, the precipitation amount is 78 mm (3.1 in) over the course of 9 days.

January Precipitation Trends in Rock Hall

The chart displays monthly precipitation patterns in Rock Hall, 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 Rock Hall, January typically receives around 78 mm (3.1 inches) of precipitation spread over approximately 9 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 Rock Hall

In Rock Hall in January, humidity is 84%. With an average temperature of 2°C (37°F), this humidity feels like an uncomfortable chill that seeps into your bones, making outdoor activities less enjoyable and prompting the need for layered clothing to stay warm and dry.

January Average Humidity in Rock Hall

This chart illustrates the average monthly humidity levels in Rock Hall, 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 Rock Hall is approximately 84%, 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 Rock Hall

In Rock Hall 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 Rock Hall, you can check the information here.

Maximum UV Index Levels in Rock Hall for January

The chart shows the monthly maximum UV Index (UVI) for Rock Hall 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 Rock Hall typically reaches 3, which falls under the moderate exposure category.

Data source: Rock Hall 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 Rock Hall Compares to Other Months

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

This table compares monthly weather conditions in Rock Hall, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	2°C (37°F)	78 mm (3.1 inches)	84%	moderate
February Weather	4°C (39°F)	134 mm (5.3 inches)	83%	moderate
March Weather	7°C (44°F)	109 mm (4.3 inches)	83%	high
April Weather	12°C (54°F)	119 mm (4.7 inches)	81%	very high
May Weather	18°C (64°F)	145 mm (5.7 inches)	78%	very high
June Weather	23°C (74°F)	91 mm (3.6 inches)	79%	very high
July Weather	27°C (80°F)	128 mm (5.1 inches)	74%	very high
August Weather	26°C (78°F)	130 mm (5.1 inches)	72%	very high
September Weather	23°C (73°F)	113 mm (4.5 inches)	75%	very high
October Weather	18°C (64°F)	132 mm (5.2 inches)	81%	high
November Weather	9°C (49°F)	97 mm (3.8 inches)	85%	moderate
December Weather	5°C (42°F)	132 mm (5.2 inches)	84%	moderate