Average annual temperature is 11.8 °C
Absolute maximum temperature: 37.5 °C
Absolute minimum temperature: -22.0 °C
Number of sunny days: 227 days
Number of rainy days: 112 days
Number of snow days: 26 days
Look at detailed online map of Riverside (historical)
* Weather data for Riverside (historical) 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) | 8.3 | 14.1 | 22.1 | 30.2 | 31.0 | 32.8 | 35.4 | 37.5 | 35.0 | 32.4 | 19.7 | 13.3 |
| Average daytime temperature (°C) | 0.6 | 5.1 | 8.6 | 18.6 | 25.8 | 30.1 | 29.6 | 29.9 | 27.7 | 18.5 | 12.0 | 5.8 |
| Average temperature (°C) | -3.9 | -1.9 | 1.9 | 11.2 | 19.1 | 24.1 | 23.8 | 24.4 | 21.5 | 13.1 | 5.9 | 1.2 |
| Average night temperature (°C) | -7.4 | -6.6 | -2.7 | 5.4 | 12.8 | 18.2 | 18.5 | 19.6 | 16.5 | 8.8 | 1.2 | -2.4 |
| Absolute minimum temperature (°C) | -22.0 | -22.0 | -11.5 | -4.4 | 2.6 | 10.4 | 11.7 | 12.5 | 10.8 | -5.3 | -8.4 | -6.7 |
| 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) | 4.6 | 7.1 | 8.1 | 9.5 | 11.4 | 13.0 | 11.7 | 11.3 | 10.0 | 7.5 | 7.1 | 5.1 |
| Precipitation (mm) | 55 | 46 | 31 | 30 | 62 | 33 | 96 | 59 | 37 | 67 | 6 | 67 |
| Sunny days | 19 | 18 | 20 | 20 | 17 | 13 | 17 | 20 | 22 | 16 | 24 | 21 |
| Rainy days | 5 | 5 | 7 | 8 | 14 | 17 | 14 | 11 | 8 | 14 | 4 | 5 |
| Snow days | 7 | 5 | 4 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 5 |
The best time to visit Riverside (historical) during the most sunny months:
The largest precipitation sum in Riverside (historical) is at