January Weather in Colusa, United States

Last updated: June 24, 2025

In January, the average temperature in Colusa, United States hovers around 11°C (51°F), with a minimum that can drop to -2°C (29°F) and a maximum peaking at 27°C (80°F). Expect 95 mm (3.8 in) of precipitation spread over 8 days, contributing to an average humidity level of 84%. Prepare for a month where cozy layers and the occasional umbrella will be your best companions!

January Temperature in Colusa

In January in Colusa, the average temperature is 11°C (51°F). The maximum can reach 27°C (80°F), and the minimum can be as low as -2°C (29°F). This wide temperature range makes it essential for travelers to pack layers to stay comfortable in varying conditions.

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

The chart illustrates January temperature patterns in Colusa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Colusa, January typically has an average temperature of 11°C (51°F), with highs reaching up to 27°C (80°F) and lows dropping to around -2°C (29°F).

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

January Precipitation in Colusa

In Colusa in January, the precipitation amount is 95 mm (3.8 in) accumulated over 8 days.

January Precipitation Trends in Colusa

The chart displays monthly precipitation patterns in Colusa, 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 Colusa, January typically receives around 95 mm (3.8 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 Colusa

In Colusa in January humidity is 84%. With an average temperature of 11°C (51°F), this humidity feels like a damp chill enveloping you, making it seem much colder than it actually is, and can dampen your spirits while traveling.

January Average Humidity in Colusa

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

In Colusa 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 Colusa, you can check the information here.

Maximum UV Index Levels in Colusa for January

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

Data source: Colusa 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 Colusa Compares to Other Months

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

This table compares monthly weather conditions in Colusa, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	11°C (51°F)	95 mm (3.8 inches)	84%	moderate
February Weather	13°C (55°F)	91 mm (3.6 inches)	84%	moderate
March Weather	14°C (58°F)	71 mm (2.8 inches)	83%	high
April Weather	19°C (66°F)	27 mm (1.1 inches)	81%	very high
May Weather	23°C (74°F)	23 mm (0.9 inches)	74%	very high
June Weather	28°C (83°F)	3 mm (0.1 inches)	64%	extreme
July Weather	30°C (87°F)	0 mm (0.0 inches)	44%	very high
August Weather	29°C (85°F)	0 mm (0.0 inches)	36%	very high
September Weather	26°C (79°F)	1 mm (0.0 inches)	44%	very high
October Weather	20°C (69°F)	25 mm (1.0 inches)	65%	high
November Weather	14°C (58°F)	38 mm (1.5 inches)	84%	moderate
December Weather	10°C (51°F)	73 mm (2.9 inches)	83%	moderate