January Weather in Chico, United States

Last updated: June 24, 2025

In January, the average temperature in Chico, United States is a cool 9°C (49°F). However, temperatures can vary significantly, with minimums dipping to -2°C (28°F) and maximums soaring to 24°C (76°F). Expect 183 mm (7.2 in) of precipitation over approximately 10 days, contributing to an average humidity level of 84%, creating a refreshing yet damp atmosphere.

January Temperature in Chico

In January in Chico, the average temperature is 9°C (49°F), with maximums reaching 24°C (76°F) and minimums dipping as low as -2°C (28°F). Travelers should be prepared for a mix of mild days and chilly nights, making layering essential for comfort.

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

The chart illustrates January temperature patterns in Chico, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Chico, January typically has an average temperature of 9°C (49°F), with highs reaching up to 24°C (76°F) and lows dropping to around -2°C (28°F).

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

January Precipitation in Chico

In Chico in January, the precipitation amount is 183 mm (7.2 in) over a duration of 10 days.

January Precipitation Trends in Chico

The chart displays monthly precipitation patterns in Chico, 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 Chico, January typically receives around 183 mm (7.2 inches) of precipitation spread over approximately 10 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 Chico

In Chico in January, humidity is 84%. With an average temperature of 9°C (49°F), this humidity feels like a chilly embrace, making travel uncomfortable as the dampness seeps into your clothes and lingers in the air, leaving you feeling cool yet clammy.

January Average Humidity in Chico

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

In Chico 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 Chico, you can check the information here.

Maximum UV Index Levels in Chico for January

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

Data source: Chico 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 Chico Compares to Other Months

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

This table compares monthly weather conditions in Chico, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	9°C (49°F)	183 mm (7.2 inches)	84%	moderate
February Weather	10°C (51°F)	199 mm (7.8 inches)	84%	moderate
March Weather	12°C (54°F)	156 mm (6.2 inches)	83%	high
April Weather	16°C (61°F)	79 mm (3.1 inches)	81%	very high
May Weather	20°C (69°F)	47 mm (1.9 inches)	74%	very high
June Weather	26°C (79°F)	8 mm (0.3 inches)	64%	extreme
July Weather	29°C (85°F)	1 mm (0.0 inches)	44%	extreme
August Weather	28°C (83°F)	1 mm (0.0 inches)	36%	very high
September Weather	24°C (76°F)	8 mm (0.3 inches)	44%	very high
October Weather	18°C (65°F)	53 mm (2.1 inches)	65%	high
November Weather	12°C (55°F)	96 mm (3.8 inches)	84%	moderate
December Weather	9°C (48°F)	140 mm (5.5 inches)	83%	moderate