January Weather in Willow Creek, United States

Last updated: June 24, 2025

In January, the average temperature in Willow Creek, United States hovers around 5°C (42°F). While temperatures can dip as low as -9°C (15°F), they can also peak at a balmy 19°C (67°F). Rainfall is quite prevalent, with 243 mm (9.5 in) expected over 14 days, contributing to an average humidity of 86%. Prepare accordingly for a cool and wet month!

January Temperature in Willow Creek

In January in Willow Creek, the average temperature is 5°C (42°F). Maximums can reach 19°C (67°F), while minimums can be as low as -9°C (15°F). This wide range of temperatures means travelers should be prepared for both chilly and mild weather, making layered clothing essential for an enjoyable trip.

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

The chart illustrates January temperature patterns in Willow Creek, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Willow Creek, January typically has an average temperature of 5°C (42°F), with highs reaching up to 19°C (67°F) and lows dropping to around -9°C (15°F).

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

January Precipitation in Willow Creek

In Willow Creek in January, the total precipitation amount is 243 mm (9.5 in) recorded over a span of 14 days.

January Precipitation Trends in Willow Creek

The chart displays monthly precipitation patterns in Willow 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 Willow Creek, January typically receives around 243 mm (9.5 inches) of precipitation spread over approximately 14 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 Creek

In Willow Creek in January, humidity is 86%. With an average temperature of 5°C (42°F), this humidity feels like a damp chill that penetrates your layers, making outdoor activities quite uncomfortable and prompting you to seek warmth indoors more often.

January Average Humidity in Willow Creek

This chart illustrates the average monthly humidity levels in Willow 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 Willow Creek 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 Willow Creek

In Willow Creek 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 Willow Creek, you can check the information here.

Maximum UV Index Levels in Willow Creek for January

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

Data source: Willow 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 Willow Creek Compares to Other Months

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

This table compares monthly weather conditions in Willow Creek, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	5°C (42°F)	243 mm (9.5 inches)	86%	moderate
February Weather	5°C (42°F)	228 mm (9.0 inches)	85%	moderate
March Weather	7°C (44°F)	187 mm (7.4 inches)	85%	high
April Weather	9°C (49°F)	121 mm (4.8 inches)	82%	very high
May Weather	12°C (54°F)	68 mm (2.7 inches)	81%	extreme
June Weather	15°C (60°F)	24 mm (1.0 inches)	79%	extreme
July Weather	18°C (65°F)	2 mm (0.1 inches)	70%	very high
August Weather	19°C (66°F)	1 mm (0.0 inches)	60%	very high
September Weather	16°C (61°F)	34 mm (1.3 inches)	62%	very high
October Weather	12°C (54°F)	69 mm (2.7 inches)	72%	high
November Weather	8°C (46°F)	160 mm (6.3 inches)	87%	moderate
December Weather	5°C (40°F)	182 mm (7.2 inches)	86%	low