January Weather in Mount Holly, United States

Last updated: June 24, 2025

In January, the average temperature in Mount Holly, United States is a brisk 6°C (44°F). You can expect a minimum chill of -12°C (10°F) and the occasional warmth peaking at 25°C (77°F). Be prepared for some moisture as the region sees 88 mm (3.5 in) of precipitation over 9 days, and don’t forget, the air will be quite humid, with an average humidity level of 86%.

January Temperature in Mount Holly

In January in Mount Holly, the average temperature is 6°C (44°F), with maximums reaching 25°C (77°F) and minimums dropping as low as -12°C (10°F). Be prepared for a wide range of temperatures when traveling to Mount Holly during this month.

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 6°C (44°F), with highs reaching up to 25°C (77°F) and lows dropping to around -12°C (10°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 88 mm (3.5 in) over the course of 9 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 88 mm (3.5 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 Mount Holly

In Mount Holly in January, humidity is 86%. With an average temperature of 6°C (44°F), this humidity feels like a damp chill that clings to your skin, making outdoor activities quite uncomfortable for traveling.

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 86%, 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 reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Mount Holly for better planning.

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 4, 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	6°C (44°F)	88 mm (3.5 inches)	86%	moderate
February Weather	10°C (49°F)	112 mm (4.4 inches)	85%	high
March Weather	12°C (54°F)	81 mm (3.2 inches)	84%	very high
April Weather	17°C (63°F)	101 mm (4.0 inches)	82%	very high
May Weather	22°C (72°F)	103 mm (4.1 inches)	83%	very high
June Weather	25°C (78°F)	67 mm (2.6 inches)	82%	extreme
July Weather	27°C (82°F)	88 mm (3.5 inches)	80%	extreme
August Weather	26°C (79°F)	85 mm (3.3 inches)	74%	very high
September Weather	24°C (75°F)	115 mm (4.5 inches)	75%	very high
October Weather	18°C (65°F)	91 mm (3.6 inches)	79%	very high
November Weather	11°C (51°F)	88 mm (3.5 inches)	87%	moderate
December Weather	8°C (47°F)	118 mm (4.7 inches)	87%	moderate