Average annual temperature is 12.7 °C
Absolute maximum temperature: 35.1 °C
Absolute minimum temperature: -17.1 °C
Number of sunny days: 171 days
Number of rainy days: 186 days
Number of snow days: 8 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) | 18.5 | 19.7 | 15.2 | 31.2 | 29.5 | 35.1 | 33.6 | 30.9 | 34.6 | 28.4 | 19.7 | 16.6 |
| Average daytime temperature (°C) | 8.3 | 8.0 | 10.1 | 18.6 | 22.1 | 26.3 | 29.9 | 27.6 | 24.4 | 19.6 | 11.1 | 9.1 |
| Average temperature (°C) | 4.3 | 2.9 | 4.8 | 12.4 | 15.7 | 20.0 | 24.3 | 22.5 | 19.4 | 14.3 | 6.1 | 4.7 |
| Average night temperature (°C) | 1.0 | -1.4 | 0.3 | 7.3 | 9.6 | 14.9 | 19.8 | 18.2 | 15.7 | 10.4 | 2.0 | 1.3 |
| Absolute minimum temperature (°C) | -3.5 | -17.1 | -5.9 | -0.4 | 4.5 | 9.7 | 15.8 | 14.4 | 8.9 | 5.0 | -4.2 | -5.5 |
| 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 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.6 | 10.6 | 11.9 | 13.3 | 14.5 | 15.1 | 14.8 | 13.8 | 12.5 | 11.1 | 9.9 | 9.3 |
| 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 | 6.3 | 7.6 | 8.8 | 12.2 | 10.7 | 11.5 | 10.0 | 7.6 | 7.5 | 7.2 | 4.9 |
| Precipitation (mm) | 135 | 45 | 112 | 163 | 52 | 100 | 165 | 89 | 205 | 146 | 73 | 224 |
| Sunny days | 14 | 17 | 13 | 15 | 19 | 9 | 7 | 10 | 14 | 17 | 19 | 17 |
| Rainy days | 16 | 8 | 15 | 15 | 12 | 21 | 24 | 21 | 16 | 14 | 10 | 14 |
| Snow days | 1 | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
The best time to visit Riverside during the most sunny months:
The largest precipitation sum in Riverside is at