Short answer: July averages a high of 95.2°F and a low of 61.0°F in Chico, per NOAA’s 1991-2020 climate normals.
Checked October 29, 2026
August is close behind at 94.3°F, and Chico averages about 99 days a year at 90°F or hotter. Summer is nearly dry: July averages 0.03 inches of rain.
More detail: Weather by Month.
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Sources
- NOAA NCEI 1991-2020 normals, Chico (USC00041715): https://www.ncei.noaa.gov/data/normals-monthly/1991-2020/access/USC00041715.csv (checked October 29, 2026)
Cite this page: It's Chico, “How Hot Is Chico in Summer?”, itschico.com/answers/how-hot-is-chico-in-summer/ (updated ). By the It's Chico editorial team. Free to quote with attribution and a link to this page; data and tables are licensed CC BY 4.0.