January Weather in Willows, United States

Last updated: June 24, 2025

In January, the average temperature in Willows, United States is a comfortable 10°C (50°F), with a range that can dip to a chilly -2°C (29°F) or peak at a warm 25°C (78°F). Expect 104 mm (4.1 in) of precipitation spread over about 8 days, contributing to the area's average humidity of 84%. Whether you're basking in the sun or braving the rain, the weather offers a bit of everything!

January Temperature in Willows

In January in Willows, the average temperature is 10°C (50°F), with maximums reaching 25°C (78°F) and minimums dropping as low as -2°C (29°F). This variation in temperature makes it essential for travelers to pack layers for comfortable exploration of Willows.

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

The chart illustrates January temperature patterns in Willows, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Willows, January typically has an average temperature of 10°C (50°F), with highs reaching up to 25°C (78°F) and lows dropping to around -2°C (29°F).

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

January Precipitation in Willows

In Willows, in January, the precipitation amount is 104 mm (4.1 in) over a span of 8 days.

January Precipitation Trends in Willows

The chart displays monthly precipitation patterns in Willows, 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 Willows, January typically receives around 104 mm (4.1 inches) of precipitation spread over approximately 8 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 Willows

In Willows in January, humidity is 84%. With an average temperature of 10°C (50°F), this humidity feels like a chilly dampness that clings to your skin, making outdoor activities less comfortable and prompting travelers to seek refuge in cozy, warm cafes or indoor attractions.

January Average Humidity in Willows

This chart illustrates the average monthly humidity levels in Willows, 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 Willows is approximately 84%, 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 Willows

In Willows 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 Willows, you can check the information here.

Maximum UV Index Levels in Willows for January

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

Data source: Willows 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 Willows Compares to Other Months

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

This table compares monthly weather conditions in Willows, 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 (50°F)	104 mm (4.1 inches)	84%	moderate
February Weather	12°C (53°F)	103 mm (4.0 inches)	84%	moderate
March Weather	13°C (56°F)	79 mm (3.1 inches)	83%	high
April Weather	18°C (64°F)	33 mm (1.3 inches)	81%	very high
May Weather	22°C (72°F)	24 mm (1.0 inches)	74%	extreme
June Weather	28°C (82°F)	5 mm (0.2 inches)	64%	extreme
July Weather	30°C (87°F)	0 mm (0.0 inches)	44%	extreme
August Weather	29°C (85°F)	0 mm (0.0 inches)	36%	very high
September Weather	25°C (78°F)	2 mm (0.1 inches)	44%	very high
October Weather	19°C (67°F)	27 mm (1.0 inches)	65%	high
November Weather	13°C (56°F)	40 mm (1.6 inches)	84%	moderate
December Weather	10°C (50°F)	72 mm (2.8 inches)	83%	moderate