January Weather in Warrenton, United States

Last updated: June 24, 2025

In Warrenton, United States, the average temperature in January is a cool 9°C (48°F). During this time, temperatures can swing from a chilly -7°C (20°F) to a warm 26°C (79°F). Expect around 98 mm (3.9 in) of precipitation spread over 9 days, contributing to an average humidity of a high 86%.

January Temperature in Warrenton

In January in Warrenton, the average temperature is 9°C (48°F). Maximums can reach 26°C (79°F), and minimums can drop as low as -7°C (20°F). Be prepared for a mix of mild days and chilly nights when planning your visit.

January Weather in Warrenton: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Warrenton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Warrenton, January typically has an average temperature of 9°C (48°F), with highs reaching up to 26°C (79°F) and lows dropping to around -7°C (20°F).

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

January Precipitation in Warrenton

In Warrenton in January, the precipitation amount is 98 mm (3.9 in) spread over a duration of 9 days.

January Precipitation Trends in Warrenton

The chart displays monthly precipitation patterns in Warrenton, 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 Warrenton, January typically receives around 98 mm (3.9 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 Warrenton

In Warrenton in January, humidity is 86%. With an average temperature of 9°C (48°F), this humidity feels like a damp chill that wraps around you, making outdoor activities uncomfortable and travel less enjoyable.

January Average Humidity in Warrenton

This chart illustrates the average monthly humidity levels in Warrenton, 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 Warrenton 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 Warrenton

In Warrenton 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 Warrenton for better planning.

Maximum UV Index Levels in Warrenton for January

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

Data source: Warrenton 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 Warrenton Compares to Other Months

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

This table compares monthly weather conditions in Warrenton, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	9°C (48°F)	98 mm (3.9 inches)	86%	moderate
February Weather	12°C (54°F)	118 mm (4.7 inches)	84%	high
March Weather	14°C (58°F)	83 mm (3.3 inches)	83%	very high
April Weather	18°C (65°F)	103 mm (4.1 inches)	81%	very high
May Weather	23°C (74°F)	102 mm (4.0 inches)	81%	extreme
June Weather	26°C (79°F)	106 mm (4.2 inches)	81%	extreme
July Weather	27°C (82°F)	108 mm (4.2 inches)	83%	extreme
August Weather	27°C (81°F)	130 mm (5.1 inches)	81%	very high
September Weather	25°C (77°F)	95 mm (3.7 inches)	82%	very high
October Weather	20°C (69°F)	105 mm (4.1 inches)	78%	very high
November Weather	13°C (55°F)	83 mm (3.2 inches)	86%	high
December Weather	10°C (51°F)	121 mm (4.7 inches)	89%	moderate