Climate averages 1991–2020
Chico weather
in July.
A very hot, very dry month: the warmest and the driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
July is a very hot month in Chico: daytime highs average 36.1°C and nights cool to about 19.9°C. By daytime temperature it is the warmest month of the year.
Rain is very rare: less than 1 mm falls in a typical July (the driest month of the year). Daylight, from sunrise to sunset, lasts about 14 h 41 min on an average July day.
The nearest other city in this atlas is Redding (106 km away). In July its highs average 36.9°C, 0.8°C warmer than Chico, with 2.3 mm of rain.
Among the 498 cities listed in the United States, Chico ranks 26th of 498 for the warmest July highs and joint 21st of 498 for the driest July (rainfall, lowest first). The mean July high of those 498 cities is 30.3°C; Chico is 5.8°C warmer than that mean.
From July to August, average highs fall by 1.2°C to 34.9°C, and monthly rainfall rises from under 1 mm to 1.6 mm.
The annual picture
July in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Chico climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 13.7°C3.9°C | 3.9°C | 184 | 11.1 | 9.710 h |
| February | 15.1°C4.6°C | 4.6°C | 178 | 10.4 | 10.711 h |
| March | 17.6°C6.2°C | 6.2°C | 149 | 10.8 | 11.912 h |
| April | 21.1°C8.5°C | 8.5°C | 73 | 7.4 | 13.213 h |
| May | 26.7°C12.8°C | 12.8°C | 47 | 5.1 | 14.314 h |
| June | 32.3°C17.0°C | 17.0°C | 14 | 1.7 | 14.915 h |
| July, selected | 36.1°C19.9°C | 19.9°C | 0.5 | 0.1 | 14.715 h |
| August | 34.9°C19.0°C | 19.0°C | 1.6 | 0.3 | 13.714 h |
| September | 31.9°C16.3°C | 16.3°C | 7.5 | 1.2 | 12.512 h |
| October | 25.4°C11.9°C | 11.9°C | 52 | 3.8 | 11.211 h |
| November | 17.6°C6.8°C | 6.8°C | 105 | 8.0 | 10.010 h |
| December | 13.2°C3.9°C | 3.9°C | 202 | 11.5 | 9.49 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
July in nearby cities
- Redding in JulyUnited States · 106 kmHigh 36.9°C · Low 20.9°C · 2.3 mm rain
- Roseville in JulyUnited States · 118 kmHigh 34.1°C · Low 17.4°C · 0.3 mm rain
- Citrus Heights in JulyUnited States · 123 kmHigh 33.9°C · Low 17.0°C · 0.3 mm rain
- Folsom in JulyUnited States · 130 kmHigh 33.7°C · Low 17.1°C · 0.3 mm rain
- Sacramento in JulyUnited States · 131 kmHigh 34.1°C · Low 16.5°C · 0.4 mm rain
- Arden-Arcade in JulyUnited States · 131 kmHigh 33.9°C · Low 16.6°C · 0.4 mm rain
- Rancho Cordova in JulyUnited States · 135 kmHigh 33.7°C · Low 16.7°C · 0.4 mm rain
- Elk Grove in JulyUnited States · 152 kmHigh 32.7°C · Low 15.8°C · 0.4 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Chico) is explained once on the Chico year overview and on the Sources, method and limits page.