May Weather in Chico, United States

Last updated: June 24, 2025

In Chico, United States, the average temperature in May hovers around 13°C (56°F), with a minimum reaching 6°C (42°F) and a maximum soaring to 27°C (80°F). Expect about 67 mm (2.6 in) of precipitation over 12 days, contributing to a high average humidity of 84%.

May Temperature in Chico

In May in Chico, the average temperature is 13°C (56°F). The maximum can reach 27°C (80°F), while the minimum can be as low as 6°C (42°F). This makes Chico an ideal destination for travelers seeking mild weather and pleasant outdoor experiences.

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

The chart illustrates May 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, May typically has an average temperature of 13°C (56°F), with highs reaching up to 27°C (80°F) and lows dropping to around 6°C (42°F).

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

May Precipitation in Chico

In Chico in May, the precipitation amount is 67 mm (2.6 in) distributed over 12 days.

May Precipitation Trends in Chico

The chart displays monthly precipitation patterns in Chico, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Chico, May typically receives around 67 mm (2.6 inches) of precipitation spread over approximately 12 days.

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

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Millimeters (mm) Inches (in)

May Humidity in Chico

In Chico in May, humidity is 84%. With an average temperature of 13°C (56°F), this humidity feels like a damp blanket wrapping around you, making it feel cooler and more uncomfortable for traveling, as the air clings to your skin and weighs you down with a sense of heaviness.

May Average Humidity in Chico

This chart illustrates the average monthly humidity levels in Chico, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Chico is approximately 84%, offering insight into how humid the weather typically is during this month.

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

May UV Index in Chico

In Chico in May, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Chico.

Maximum UV Index Levels in Chico for May

The chart shows the monthly maximum UV Index (UVI) for Chico in May, 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 May, the maximum UV index in Chico typically reaches 8, which falls under the very high exposure category.

Data source: Chico May 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 May 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 May’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 May’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