January Weather in Rock Creek, United States

Last updated: June 24, 2025

In January, the average temperature in Rock Creek, United States hovers around -10°C (15°F). However, temperatures can plunge to a frigid -33°C (-28°F) or rise as high as 7°C (45°F). Expect about 19 mm (0.7 in) of precipitation over 4 days, with a notable average humidity of 87%, adding to the overall chill of the month. Stay warm and prepared!

January Temperature in Rock Creek

In January in Rock Creek, the average temperature is -10°C (15°F). Maximums can reach 7°C (45°F), and minimums can drop as low as -33°C (-28°F). Travelers should be prepared for extreme cold and dress accordingly to enjoy their visit.

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

The chart illustrates January temperature patterns in Rock Creek, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rock Creek, January typically has an average temperature of -10°C (15°F), with highs reaching up to 7°C (45°F) and lows dropping to around -33°C (-28°F).

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

January Precipitation in Rock Creek

In Rock Creek in January, the precipitation amount is 19 mm (0.7 in) over the course of 4 days.

January Precipitation Trends in Rock Creek

The chart displays monthly precipitation patterns in Rock Creek, 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 Creek, January typically receives around 19 mm (0.7 inches) of precipitation spread over approximately 4 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 Creek

In Rock Creek in January, humidity is 87%. With an average temperature of -10°C (15°F), this humidity feels like a biting chill that seeps into your bones, making travel uncomfortable and the air feel heavy with frost.

January Average Humidity in Rock Creek

This chart illustrates the average monthly humidity levels in Rock Creek, 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 Creek is approximately 87%, 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 Creek

In Rock Creek in January, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Rock Creek, you can visit Hourly UV Index in Rock Creek.

Maximum UV Index Levels in Rock Creek for January

The chart shows the monthly maximum UV Index (UVI) for Rock Creek 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 Creek typically reaches 2, which falls under the low exposure category.

Data source: Rock Creek 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 Creek Compares to Other Months

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

This table compares monthly weather conditions in Rock Creek, 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 (15°F)	19 mm (0.7 inches)	87%	low
February Weather	-9°C (16°F)	29 mm (1.1 inches)	90%	moderate
March Weather	0°C (32°F)	46 mm (1.8 inches)	85%	moderate
April Weather	6°C (42°F)	89 mm (3.5 inches)	84%	high
May Weather	14°C (58°F)	100 mm (3.9 inches)	78%	very high
June Weather	21°C (70°F)	74 mm (2.9 inches)	80%	very high
July Weather	23°C (73°F)	101 mm (4.0 inches)	81%	very high
August Weather	21°C (70°F)	128 mm (5.0 inches)	81%	very high
September Weather	17°C (63°F)	97 mm (3.8 inches)	81%	high
October Weather	8°C (47°F)	104 mm (4.1 inches)	84%	moderate
November Weather	0°C (32°F)	36 mm (1.4 inches)	88%	moderate
December Weather	-6°C (22°F)	52 mm (2.1 inches)	84%	low