Historical weather data, all-time temperature records, and monthly climate averages for Chico, CA. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5th lands right in Chico's sweet spot — 114 years of data puts the average high at a pleasant 71° with a low of 44°. There's a 1-in-4 chance of rain, though the spread between the all-time extremes tells a wilder story: this date has seen everything from a scorching 89° back in 1939 to a hard freeze at 28° in 1921.
Chico plays for keeps when it comes to heat — the all-time record of 117° set on July 15, 1972 puts it among the hottest reliably-recorded days anywhere in California. Winters are mild but not toothless, with a record low of 11° in December 1932 and just enough snow history (a rare 2 inches in January 1972) to keep things interesting.
Chico is a tale of two seasons: a long, blazing summer where highs run 90°+ from June through September, peaking around 97° in mid-July, and a mild, rainy winter where January tops out near 53°. If you're planning a visit, spring and fall offer the most comfortable windows — but come January, pack for rain, as mid-month averages over an inch of precipitation per week.