January Weather in Rock Hill, United States

Last updated: June 24, 2025

In January, the average temperature in Rock Hill, United States hovers around 7°C (45°F), with the mercury dipping as low as -12°C (11°F) and peaking at a balmy 25°C (78°F). During this month, the area sees 93 mm (3.7 in) of precipitation spread over 9 days, contributing to an average humidity level of a muggy 86%. Prepare for a mix of chilly and mild days!

January Temperature in Rock Hill

In January in Rock Hill, the average temperature is 7°C (45°F). Maximum temperatures can reach 25°C (78°F), while minimums can drop as low as -12°C (11°F). Travelers should be prepared for a wide range of temperatures during their stay.

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

The chart illustrates January temperature patterns in Rock Hill, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rock Hill, January typically has an average temperature of 7°C (45°F), with highs reaching up to 25°C (78°F) and lows dropping to around -12°C (11°F).

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

January Precipitation in Rock Hill

In Rock Hill in January, the precipitation amount is 93 mm (3.7 in) over the course of 9 days.

January Precipitation Trends in Rock Hill

The chart displays monthly precipitation patterns in Rock Hill, 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 Hill, January typically receives around 93 mm (3.7 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 Rock Hill

In Rock Hill in January, humidity is 86%. With an average temperature of 7°C (45°F), this humidity feels like a damp chill that seeps into your bones, making outdoor exploration a bit uncomfortable and necessitating cozy layers to stay warm while navigating the moist air.

January Average Humidity in Rock Hill

This chart illustrates the average monthly humidity levels in Rock Hill, 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 Hill 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 Rock Hill

In Rock Hill 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 Rock Hill for better planning.

Maximum UV Index Levels in Rock Hill for January

The chart shows the monthly maximum UV Index (UVI) for Rock Hill 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 Hill typically reaches 4, which falls under the moderate exposure category.

Data source: Rock Hill 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 Hill Compares to Other Months

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

This table compares monthly weather conditions in Rock Hill, 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 (45°F)	93 mm (3.7 inches)	86%	moderate
February Weather	10°C (50°F)	120 mm (4.7 inches)	85%	high
March Weather	12°C (55°F)	89 mm (3.5 inches)	84%	very high
April Weather	17°C (63°F)	104 mm (4.1 inches)	82%	very high
May Weather	22°C (72°F)	106 mm (4.2 inches)	83%	very high
June Weather	25°C (77°F)	79 mm (3.1 inches)	82%	extreme
July Weather	27°C (81°F)	101 mm (4.0 inches)	80%	extreme
August Weather	26°C (79°F)	114 mm (4.5 inches)	74%	very high
September Weather	24°C (75°F)	128 mm (5.0 inches)	75%	very high
October Weather	19°C (66°F)	87 mm (3.4 inches)	79%	very high
November Weather	11°C (52°F)	90 mm (3.5 inches)	87%	moderate
December Weather	9°C (48°F)	124 mm (4.9 inches)	87%	moderate