January Weather in Willow, United States

Last updated: June 24, 2025

In Willow, United States, the average temperature in January hovers around -12°C (10°F), with fluctuations that can see minimums plummeting to -35°C (-31°F) and maximums reaching 7°C (46°F). During this chilly month, expect about 36 mm (1.4 in) of precipitation spread over 7 days, leading to a notably high average humidity of 95%.

January Temperature in Willow

In January in Willow, the average temperature is -12°C (10°F). Maximums can reach 7°C (46°F) and minimums can be as low as -35°C (-31°F). Travelers should be prepared for extremely cold conditions and dress accordingly to fully enjoy their visit.

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

The chart illustrates January temperature patterns in Willow, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Willow, January typically has an average temperature of -12°C (10°F), with highs reaching up to 7°C (46°F) and lows dropping to around -35°C (-31°F).

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

January Precipitation in Willow

In Willow in January, the total precipitation amount is 36 mm (1.4 in) over a span of 7 days.

January Precipitation Trends in Willow

The chart displays monthly precipitation patterns in Willow, 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 Willow, January typically receives around 36 mm (1.4 inches) of precipitation spread over approximately 7 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 Willow

In Willow in January humidity is 95%. With an average temperature of -12°C (10°F), this humidity feels like an icy mist that clings to your skin, making travel uncomfortable and requiring extra layers to stay warm while battling the damp chill.

January Average Humidity in Willow

This chart illustrates the average monthly humidity levels in Willow, 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 Willow is approximately 95%, 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 Willow

In Willow in January, the maximum UV index is 1, which corresponds to a low Exposure Category. This means you have a time to burn of 45 minutes. For more details, you can check the Hourly UV Index in Willow.

Maximum UV Index Levels in Willow for January

The chart shows the monthly maximum UV Index (UVI) for Willow 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 Willow typically reaches 1, which falls under the low exposure category.

Data source: Willow 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 Willow Compares to Other Months

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

This table compares monthly weather conditions in Willow, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-12°C (10°F)	36 mm (1.4 inches)	95%	low
February Weather	-9°C (16°F)	48 mm (1.9 inches)	95%	low
March Weather	-6°C (22°F)	41 mm (1.6 inches)	90%	moderate
April Weather	2°C (36°F)	40 mm (1.6 inches)	82%	moderate
May Weather	9°C (49°F)	79 mm (3.1 inches)	85%	moderate
June Weather	14°C (57°F)	80 mm (3.2 inches)	95%	high
July Weather	16°C (62°F)	86 mm (3.4 inches)	100%	high
August Weather	14°C (58°F)	134 mm (5.3 inches)	99%	moderate
September Weather	9°C (49°F)	107 mm (4.2 inches)	97%	moderate
October Weather	3°C (37°F)	110 mm (4.3 inches)	93%	low
November Weather	-6°C (21°F)	67 mm (2.6 inches)	97%	low
December Weather	-8°C (17°F)	74 mm (2.9 inches)	98%	low