Average annual temperature is 8.5 °C
Absolute maximum temperature: 39.5 °C
Absolute minimum temperature: -22.0 °C
Number of sunny days: 207 days
Number of rainy days: 114 days
Number of snow days: 44 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) | 2.6 | 4.3 | 8.6 | 25.2 | 27.7 | 29.5 | 39.5 | 34.6 | 29.5 | 23.0 | 15.6 | 9.0 |
| Average daytime temperature (°C) | -1.7 | -1.5 | 1.8 | 12.0 | 22.3 | 24.7 | 34.7 | 30.1 | 25.1 | 17.1 | 8.8 | 3.8 |
| Average temperature (°C) | -5.1 | -6.2 | -2.2 | 4.5 | 14.8 | 17.7 | 25.9 | 22.6 | 17.6 | 10.2 | 2.8 | -1.7 |
| Average night temperature (°C) | -8.3 | -9.8 | -5.3 | -1.2 | 8.0 | 10.9 | 17.0 | 15.9 | 11.0 | 4.7 | -1.7 | -5.6 |
| Absolute minimum temperature (°C) | -22.0 | -20.1 | -10.8 | -9.4 | 3.6 | 6.6 | 12.0 | 12.1 | 5.3 | -4.0 | -8.3 | -13.7 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 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) | 9.5 | 10.6 | 11.9 | 13.3 | 14.5 | 15.2 | 14.9 | 13.8 | 12.5 | 11.1 | 9.9 | 9.2 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 4.7 | 7.1 | 7.9 | 9.9 | 12.3 | 12.6 | 13.3 | 11.6 | 10.7 | 8.5 | 7.1 | 6.4 |
| Precipitation (mm) | 103 | 48 | 75 | 51 | 52 | 45 | 2 | 43 | 56 | 44 | 33 | 34 |
| Sunny days | 11 | 15 | 10 | 16 | 9 | 12 | 27 | 20 | 22 | 22 | 21 | 22 |
| Rainy days | 6 | 5 | 10 | 7 | 22 | 18 | 4 | 11 | 8 | 9 | 9 | 5 |
| Snow days | 14 | 8 | 11 | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 |
The best time to visit Riverside during the most sunny months:
The largest precipitation sum in Riverside is at