Climate averages 1991–2020
Chico weather
in October.
A warm, moderately wet month: the 6th warmest and the 6th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
October is a warm month in Chico: daytime highs average 25.4°C and nights cool to about 11.9°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 52 mm of rain on roughly 4 days, which makes October a moderately wet month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 11 min on an average October day.
The nearest other city in this atlas is Redding (106 km away). In October its highs average 24.7°C, 0.7°C cooler than Chico, with 70 mm of rain.
Among the 498 cities listed in the United States, Chico ranks joint 127th of 498 for the warmest October highs and joint 167th of 498 for the driest October (rainfall, lowest first). The mean October high of those 498 cities is 21.4°C; Chico is 4.0°C warmer than that mean.
From October to November, average highs fall by 7.8°C to 17.6°C, and monthly rainfall rises from 52 mm to 105 mm.
The annual picture
October 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 | 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, selected | 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
October in nearby cities
- Redding in OctoberUnited States · 106 kmHigh 24.7°C · Low 11.7°C · 70 mm rain
- Roseville in OctoberUnited States · 118 kmHigh 25.0°C · Low 11.5°C · 41 mm rain
- Citrus Heights in OctoberUnited States · 123 kmHigh 25.0°C · Low 11.7°C · 41 mm rain
- Folsom in OctoberUnited States · 130 kmHigh 24.9°C · Low 11.5°C · 41 mm rain
- Sacramento in OctoberUnited States · 131 kmHigh 25.3°C · Low 12.2°C · 31 mm rain
- Arden-Arcade in OctoberUnited States · 131 kmHigh 25.1°C · Low 12.1°C · 31 mm rain
- Rancho Cordova in OctoberUnited States · 135 kmHigh 25.0°C · Low 11.8°C · 37 mm rain
- Elk Grove in OctoberUnited States · 152 kmHigh 24.9°C · Low 12.0°C · 37 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.