December Weather in Colusa, United States

Last updated: June 24, 2025

In December, the average temperature in Colusa, United States hovers around 10°C (51°F), with a minimum chill of -3°C (27°F) and a potential peak of 25°C (76°F). During this time, you can expect about 73 mm (2.9 in) of precipitation spread over 7 days, resulting in an average humidity of 83%. Be prepared for a mix of cool days with wet conditions!

December Temperature in Colusa

In December in Colusa, the average temperature is 10°C (51°F). The maximum can reach 25°C (76°F), and the minimum can be as low as -3°C (27°F). Therefore, travelers should prepare for a range of weather conditions and pack accordingly.

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

The chart illustrates December 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, December typically has an average temperature of 10°C (51°F), with highs reaching up to 25°C (76°F) and lows dropping to around -3°C (27°F).

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

December Precipitation in Colusa

In Colusa in December, the precipitation amount is 73 mm (2.9 in) during a span of 7 days.

December Precipitation Trends in Colusa

The chart displays monthly precipitation patterns in Colusa, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Colusa, December typically receives around 73 mm (2.9 inches) of precipitation spread over approximately 7 days.

Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

December Humidity in Colusa

In Colusa in December, humidity is 83%. With an average temperature of 10°C (51°F), this humidity feels like a chilly dampness that permeates your clothes, making it essential to dress in layers for travel, as the cool air combined with the high humidity can create an uncomfortable and bone-chilling atmosphere.

December Average Humidity in Colusa

This chart illustrates the average monthly humidity levels in Colusa, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Colusa is approximately 83%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Colusa

In Colusa in December, 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 December

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

Data source: Colusa December 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 December 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 December’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 December’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