Average annual temperature is 7.5 °C
Absolute maximum temperature: 35.3 °C
Absolute minimum temperature: -18.3 °C
Number of sunny days: 162 days
Number of rainy days: 132 days
Number of snow days: 71 days
Look at detailed online map of American River
* Weather data for American River United States is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 7.4 | 8.9 | 10.1 | 22.3 | 26.9 | 28.8 | 32.2 | 35.3 | 29.9 | 23.6 | 13.0 | 10.3 |
| Average daytime temperature (°C) | 2.7 | 3.1 | 3.8 | 8.5 | 18.8 | 21.3 | 26.3 | 26.5 | 19.9 | 14.5 | 6.9 | 4.3 |
| Average temperature (°C) | -0.5 | -1.6 | 0.0 | 3.6 | 12.0 | 14.0 | 18.0 | 18.6 | 13.0 | 8.5 | 2.5 | 0.7 |
| Average night temperature (°C) | -2.8 | -4.7 | -3.2 | 0.2 | 6.1 | 8.0 | 10.6 | 11.9 | 7.8 | 4.2 | -0.2 | -2.6 |
| Absolute minimum temperature (°C) | -14.2 | -18.3 | -9.2 | -7.7 | -0.3 | 3.0 | 7.2 | 6.8 | 0.4 | -4.1 | -5.0 | -10.7 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 8.0 |
| Daylight mean duration (h) | 9.0 | 10.3 | 11.9 | 13.6 | 15.1 | 15.8 | 15.5 | 14.2 | 12.6 | 10.9 | 9.4 | 8.6 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 8.0 | 8.0 |
| Sunshine mean duration (h) | 4.0 | 5.8 | 7.7 | 8.5 | 12.6 | 13.0 | 13.9 | 12.1 | 9.6 | 7.8 | 5.3 | 3.3 |
| Precipitation (mm) | 94 | 66 | 64 | 84 | 22 | 32 | 8 | 32 | 55 | 42 | 108 | 196 |
| Sunny days | 7 | 8 | 8 | 9 | 13 | 15 | 24 | 22 | 15 | 18 | 16 | 7 |
| Rainy days | 6 | 5 | 5 | 12 | 18 | 15 | 7 | 9 | 15 | 11 | 13 | 16 |
| Snow days | 18 | 15 | 18 | 9 | 0 | 0 | 0 | 0 | 0 | 2 | 1 | 8 |
The best time to visit American River during the most sunny months:
Months with the longest average daylight duration in American River:
The largest precipitation sum in American River is at