January Weather in Mount Holly, United States

Last updated: June 24, 2025

The average temperature in Mount Holly, United States for January hovers around -7°C (20°F). While chilly, temperatures can plummet to a minimum of -31°C (-23°F), with rare peaks reaching a maximum of 14°C (58°F). Expect 78 mm (3.1 in) of precipitation spread over 11 days, accompanied by a high average humidity of 89%, creating a crisp and damp atmosphere.

January Temperature in Mount Holly

In January in Mount Holly, the average temperature is -7°C (20°F). The maximum can reach 14°C (58°F), while the minimum can drop as low as -31°C (-23°F). Travelers should be prepared for a wide temperature range and dress warmly for outdoor activities.

January Weather in Mount Holly: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Mount Holly, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mount Holly, January typically has an average temperature of -7°C (20°F), with highs reaching up to 14°C (58°F) and lows dropping to around -31°C (-23°F).

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

January Precipitation in Mount Holly

In Mount Holly in January, the precipitation amount is 78 mm (3.1 in) over the course of 11 days.

January Precipitation Trends in Mount Holly

The chart displays monthly precipitation patterns in Mount Holly, 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 Mount Holly, January typically receives around 78 mm (3.1 inches) of precipitation spread over approximately 11 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 Mount Holly

In Mount Holly in January humidity is 89%. With an average temperature of -7°C (20°F), this humidity feels like a biting chill that seeps into your bones, making travel quite uncomfortable as you navigate the frosty air that clings to every breath.

January Average Humidity in Mount Holly

This chart illustrates the average monthly humidity levels in Mount Holly, 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 Mount Holly is approximately 89%, 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 Mount Holly

In Mount Holly 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 Mount Holly, you can check the information here.

Maximum UV Index Levels in Mount Holly for January

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

Data source: Mount Holly 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 Mount Holly Compares to Other Months

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

This table compares monthly weather conditions in Mount Holly, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-7°C (20°F)	78 mm (3.1 inches)	89%	moderate
February Weather	-5°C (23°F)	89 mm (3.5 inches)	88%	moderate
March Weather	-1°C (30°F)	79 mm (3.1 inches)	86%	high
April Weather	6°C (42°F)	129 mm (5.1 inches)	84%	very high
May Weather	13°C (55°F)	101 mm (4.0 inches)	76%	very high
June Weather	18°C (64°F)	118 mm (4.6 inches)	72%	very high
July Weather	20°C (69°F)	167 mm (6.6 inches)	66%	very high
August Weather	19°C (67°F)	113 mm (4.5 inches)	64%	very high
September Weather	15°C (60°F)	86 mm (3.4 inches)	72%	high
October Weather	9°C (49°F)	155 mm (6.1 inches)	81%	moderate
November Weather	1°C (34°F)	108 mm (4.3 inches)	87%	moderate
December Weather	-4°C (25°F)	99 mm (3.9 inches)	84%	low