Average annual temperature is 14.0 °C
Absolute maximum temperature: 37.6 °C
Absolute minimum temperature: -10.0 °C
Number of sunny days: 187 days
Number of rainy days: 176 days
Number of snow days: 2 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) | 18.0 | 22.7 | 25.3 | 31.2 | 30.2 | 33.6 | 37.6 | 34.9 | 37.0 | 27.6 | 23.7 | 17.7 |
| Average daytime temperature (°C) | 9.4 | 11.9 | 12.9 | 22.0 | 23.3 | 27.8 | 32.6 | 30.9 | 26.4 | 20.7 | 13.1 | 10.0 |
| Average temperature (°C) | 5.0 | 6.0 | 6.6 | 14.7 | 16.5 | 21.1 | 25.7 | 24.4 | 20.5 | 14.8 | 7.2 | 5.4 |
| Average night temperature (°C) | 1.7 | 1.5 | 1.7 | 8.6 | 10.1 | 15.1 | 20.2 | 19.2 | 15.7 | 10.2 | 2.6 | 1.9 |
| Absolute minimum temperature (°C) | -3.6 | -10.0 | -6.3 | 0.1 | 4.8 | 10.4 | 17.4 | 14.8 | 10.3 | 4.0 | -6.0 | -4.0 |
| 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 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.8 | 10.7 | 12.0 | 13.2 | 14.3 | 14.9 | 14.6 | 13.7 | 12.4 | 11.2 | 10.1 | 9.5 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 4.9 | 7.0 | 7.9 | 9.1 | 9.8 | 10.6 | 11.9 | 11.1 | 9.0 | 8.3 | 7.7 | 5.6 |
| Precipitation (mm) | 47 | 46 | 72 | 104 | 37 | 103 | 98 | 31 | 110 | 47 | 70 | 113 |
| Sunny days | 12 | 17 | 14 | 17 | 16 | 13 | 6 | 15 | 15 | 18 | 25 | 19 |
| Rainy days | 18 | 10 | 17 | 13 | 15 | 17 | 25 | 16 | 15 | 13 | 5 | 12 |
| Snow days | 1 | 1 | 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