Average annual temperature is 8.9 °C
Absolute maximum temperature: 37.6 °C
Absolute minimum temperature: -22.7 °C
Number of sunny days: 185 days
Number of rainy days: 149 days
Number of snow days: 31 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) | 6.1 | 6.0 | 12.6 | 27.1 | 30.2 | 31.1 | 35.3 | 37.6 | 29.2 | 24.7 | 10.4 | 7.3 |
| Average daytime temperature (°C) | 1.5 | 2.5 | 6.6 | 12.6 | 23.4 | 25.4 | 31.3 | 29.9 | 22.6 | 15.6 | 5.7 | 3.6 |
| Average temperature (°C) | -2.3 | -3.1 | 0.0 | 6.3 | 15.8 | 18.4 | 22.9 | 22.0 | 15.5 | 9.1 | 1.6 | 0.0 |
| Average night temperature (°C) | -5.4 | -7.7 | -5.3 | 0.9 | 9.0 | 11.2 | 14.4 | 15.0 | 10.1 | 4.6 | -1.2 | -2.4 |
| Absolute minimum temperature (°C) | -22.7 | -18.5 | -11.6 | -4.4 | 3.5 | 5.8 | 8.1 | 10.0 | 3.9 | -4.7 | -6.4 | -7.4 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 10.0 | 12.0 | 14.0 | 15.0 | 16.0 | 15.0 | 15.0 | 13.0 | 11.0 | 9.0 | 8.0 |
| Daylight mean duration (h) | 8.9 | 10.2 | 11.9 | 13.7 | 15.2 | 16.0 | 15.6 | 14.3 | 12.6 | 10.8 | 9.3 | 8.4 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 13.0 | 11.0 | 10.0 | 8.0 | 8.0 |
| Sunshine mean duration (h) | 3.9 | 4.3 | 7.7 | 9.3 | 12.4 | 13.3 | 14.1 | 11.4 | 8.9 | 7.8 | 4.3 | 3.1 |
| Precipitation (mm) | 41 | 55 | 54 | 80 | 43 | 35 | 2 | 41 | 42 | 27 | 92 | 107 |
| Sunny days | 12 | 9 | 14 | 8 | 12 | 18 | 28 | 20 | 18 | 19 | 13 | 14 |
| Rainy days | 12 | 11 | 9 | 20 | 19 | 12 | 3 | 11 | 12 | 10 | 16 | 14 |
| Snow days | 7 | 8 | 8 | 2 | 0 | 0 | 0 | 0 | 0 | 2 | 1 | 3 |
The best time to visit Riverside (historical) during the most sunny months:
Months with the longest average daylight duration in Riverside (historical):
The largest precipitation sum in Riverside (historical) is at