Average annual temperature is 16.0 °C
Absolute maximum temperature: 35.3 °C
Absolute minimum temperature: -5.0 °C
Number of sunny days: 196 days
Number of rainy days: 169 days
Look at detailed online map of Riverside
* Weather data for Riverside 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) | 18.3 | 24.1 | 25.9 | 27.4 | 29.6 | 31.7 | 35.1 | 35.3 | 34.1 | 28.3 | 26.7 | 20.1 |
| Average daytime temperature (°C) | 12.8 | 16.0 | 17.5 | 21.4 | 24.2 | 27.6 | 32.4 | 31.1 | 28.2 | 23.1 | 16.8 | 12.7 |
| Average temperature (°C) | 7.7 | 10.7 | 11.4 | 14.9 | 18.2 | 21.7 | 25.8 | 25.0 | 21.6 | 16.5 | 10.4 | 7.2 |
| Average night temperature (°C) | 3.6 | 6.3 | 5.8 | 9.2 | 13.3 | 16.3 | 20.2 | 20.0 | 16.3 | 10.7 | 5.3 | 2.5 |
| Absolute minimum temperature (°C) | -4.8 | -3.8 | -3.0 | 1.9 | 4.7 | 12.1 | 17.0 | 17.4 | 10.8 | 5.2 | -4.5 | -5.0 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 10.1 | 10.9 | 12.0 | 13.1 | 14.0 | 14.5 | 14.2 | 13.4 | 12.4 | 11.3 | 10.4 | 9.9 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 9.0 |
| Sunshine mean duration (h) | 6.3 | 6.3 | 8.4 | 8.8 | 9.6 | 10.7 | 12.0 | 10.5 | 10.7 | 9.5 | 7.4 | 6.4 |
| Precipitation (mm) | 149 | 83 | 96 | 159 | 85 | 122 | 66 | 75 | 25 | 21 | 58 | 108 |
| Sunny days | 15 | 11 | 18 | 13 | 14 | 15 | 11 | 15 | 19 | 24 | 21 | 20 |
| Rainy days | 16 | 17 | 13 | 17 | 17 | 15 | 20 | 16 | 11 | 7 | 9 | 11 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Riverside during the most sunny months:
The largest precipitation sum in Riverside is at