Climate averages 1991–2020
Chico weather
in August.
A very hot, very dry month: the 2nd warmest and the 2nd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a very hot month in Chico: daytime highs average 34.9°C and nights cool to about 19.0°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 1.6 mm of rain on fewer than one day, which makes August a very dry month (the 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 44 min on an average August day.
The nearest other city in this atlas is Redding (106 km away). In August its highs average 35.6°C, 0.7°C warmer than Chico, with 4.9 mm of rain.
Among the 498 cities listed in the United States, Chico ranks joint 35th of 498 for the warmest August highs and 82nd of 498 for the driest August (rainfall, lowest first). The mean August high of those 498 cities is 29.9°C; Chico is 5.0°C warmer than that mean.
From August to September, average highs fall by 3.0°C to 31.9°C, and monthly rainfall rises from 1.6 mm to 7.5 mm.
The annual picture
August 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 | 36.1°C19.9°C | 19.9°C | 0.5 | 0.1 | 14.715 h |
| August, selected | 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
August in nearby cities
- Redding in AugustUnited States · 106 kmHigh 35.6°C · Low 20.1°C · 4.9 mm rain
- Roseville in AugustUnited States · 118 kmHigh 33.3°C · Low 17.1°C · 1.1 mm rain
- Citrus Heights in AugustUnited States · 123 kmHigh 33.1°C · Low 16.8°C · 1.1 mm rain
- Folsom in AugustUnited States · 130 kmHigh 33.1°C · Low 16.9°C · 1.1 mm rain
- Sacramento in AugustUnited States · 131 kmHigh 33.3°C · Low 16.3°C · 1.3 mm rain
- Arden-Arcade in AugustUnited States · 131 kmHigh 33.1°C · Low 16.5°C · 1.3 mm rain
- Rancho Cordova in AugustUnited States · 135 kmHigh 33.0°C · Low 16.6°C · 1.4 mm rain
- Elk Grove in AugustUnited States · 152 kmHigh 32.1°C · Low 15.7°C · 1.4 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.