October Weather in Chico, United States

Last updated: June 24, 2025

In October, the average temperature in Chico, United States hovers around 12°C (54°F), with a minimum of 3°C (37°F) and a maximum reaching up to 23°C (74°F). Expect 145 mm (5.7 in) of precipitation over approximately 15 days, accompanied by a high average humidity of 83%. Stay prepared for a mix of mild weather and intermittent rain!

October Temperature in Chico

In October in Chico, the average temperature is 12°C (54°F). Maximum temperatures can reach 23°C (74°F), while minimums can dip as low as 3°C (37°F). Be sure to pack layers to enjoy your travels comfortably!

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

The chart illustrates October 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, October typically has an average temperature of 12°C (54°F), with highs reaching up to 23°C (74°F) and lows dropping to around 3°C (37°F).

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

October Precipitation in Chico

In Chico in October, the precipitation amount is 145 mm (5.7 in) spread over the course of 15 days.

October Precipitation Trends in Chico

The chart displays monthly precipitation patterns in Chico, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Chico, October typically receives around 145 mm (5.7 inches) of precipitation spread over approximately 15 days.

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

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Millimeters (mm) Inches (in)

October Humidity in Chico

In Chico in October humidity is 83%. With an average temperature of 12°C (54°F), this humidity feels like a heavy blanket wrapping around you, making outdoor exploration feel sticky and uncomfortable, which can dampen the excitement of traveling.

October Average Humidity in Chico

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

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

October UV Index in Chico

In Chico in October, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Chico.

Maximum UV Index Levels in Chico for October

The chart shows the monthly maximum UV Index (UVI) for Chico in October, 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 October, the maximum UV index in Chico typically reaches 5, which falls under the moderate exposure category.

Data source: Chico October 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 October 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 October’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 October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	6°C (43°F)	179 mm (7.0 inches)	86%	low
February Weather	5°C (42°F)	146 mm (5.7 inches)	84%	moderate
March Weather	7°C (45°F)	119 mm (4.7 inches)	85%	moderate
April Weather	10°C (50°F)	102 mm (4.0 inches)	83%	high
May Weather	13°C (56°F)	67 mm (2.6 inches)	84%	very high
June Weather	16°C (62°F)	64 mm (2.5 inches)	84%	very high
July Weather	19°C (67°F)	26 mm (1.0 inches)	82%	very high
August Weather	20°C (68°F)	24 mm (0.9 inches)	73%	very high
September Weather	17°C (63°F)	90 mm (3.6 inches)	74%	high
October Weather	12°C (54°F)	145 mm (5.7 inches)	83%	moderate
November Weather	9°C (48°F)	181 mm (7.1 inches)	86%	moderate
December Weather	6°C (43°F)	194 mm (7.6 inches)	87%	low