Climate averages 1991–2020
Chico weather
in January.
A cool, very wet month: the 11th warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
January is a cool month in Chico: daytime highs average 13.7°C and nights cool to about 3.9°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 184 mm of rain on roughly 11 days, which makes January a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 9 h 42 min on an average January day.
The nearest other city in this atlas is Redding (106 km away). In January its highs average 12.5°C, 1.2°C cooler than Chico, with 236 mm of rain.
Among the 498 cities listed in the United States, Chico ranks joint 180th of 498 for the warmest January highs and 491st of 498 for the driest January (rainfall, lowest first). The mean January high of those 498 cities is 9.5°C; Chico is 4.2°C warmer than that mean.
From January to February, average highs rise by 1.4°C to 15.1°C, and monthly rainfall falls from 184 mm to 178 mm.
The annual picture
January 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, selected | 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 | 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
January in nearby cities
- Redding in JanuaryUnited States · 106 kmHigh 12.5°C · Low 3.3°C · 236 mm rain
- Roseville in JanuaryUnited States · 118 kmHigh 13.4°C · Low 3.7°C · 142 mm rain
- Citrus Heights in JanuaryUnited States · 123 kmHigh 13.3°C · Low 3.9°C · 142 mm rain
- Folsom in JanuaryUnited States · 130 kmHigh 13.4°C · Low 3.8°C · 142 mm rain
- Sacramento in JanuaryUnited States · 131 kmHigh 13.5°C · Low 4.3°C · 118 mm rain
- Arden-Arcade in JanuaryUnited States · 131 kmHigh 13.4°C · Low 4.2°C · 118 mm rain
- Rancho Cordova in JanuaryUnited States · 135 kmHigh 13.4°C · Low 4.1°C · 125 mm rain
- Elk Grove in JanuaryUnited States · 152 kmHigh 13.3°C · Low 4.3°C · 125 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.