Average annual temperature is 19.9 °C
Absolute maximum temperature: 37.9 °C
Absolute minimum temperature: 0.4 °C
Number of sunny days: 157 days
Number of rainy days: 208 days
Look at detailed online map of Riverdale
* Weather data for Riverdale 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) | 23.9 | 28.8 | 29.1 | 29.1 | 32.9 | 34.6 | 37.9 | 36.9 | 34.6 | 29.6 | 27.5 | 23.2 |
| Average daytime temperature (°C) | 18.0 | 21.4 | 21.9 | 25.3 | 25.9 | 29.9 | 33.8 | 33.3 | 29.6 | 25.3 | 19.6 | 16.7 |
| Average temperature (°C) | 12.6 | 15.9 | 16.8 | 19.5 | 21.3 | 24.8 | 28.2 | 28.1 | 24.3 | 19.7 | 14.6 | 12.1 |
| Average night temperature (°C) | 8.6 | 12.1 | 12.7 | 15.3 | 17.5 | 21.2 | 24.3 | 24.2 | 20.3 | 15.6 | 10.9 | 8.8 |
| Absolute minimum temperature (°C) | 0.4 | 2.5 | 2.9 | 8.1 | 11.6 | 17.0 | 21.6 | 22.4 | 17.0 | 9.6 | 1.6 | 1.6 |
| 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 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 |
| Daylight mean duration (h) | 10.3 | 11.0 | 12.0 | 13.0 | 13.8 | 14.2 | 14.0 | 13.3 | 12.4 | 11.4 | 10.5 | 10.1 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 7.3 | 8.3 | 9.2 | 10.3 | 10.2 | 11.2 | 11.8 | 11.4 | 10.5 | 9.0 | 6.7 | 6.6 |
| Precipitation (mm) | 107 | 115 | 63 | 92 | 106 | 144 | 126 | 159 | 91 | 60 | 78 | 160 |
| Sunny days | 17 | 14 | 16 | 14 | 7 | 8 | 2 | 3 | 17 | 20 | 18 | 21 |
| Rainy days | 14 | 14 | 15 | 16 | 24 | 22 | 29 | 28 | 13 | 11 | 12 | 10 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Riverdale during the most sunny months:
The largest precipitation sum in Riverdale is at