Average annual temperature is 16.8 °C
Absolute maximum temperature: 36.3 °C
Absolute minimum temperature: -6.8 °C
Number of sunny days: 184 days
Number of rainy days: 181 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) | 23.0 | 26.0 | 29.3 | 30.4 | 29.9 | 32.5 | 35.2 | 36.3 | 34.8 | 28.2 | 26.0 | 22.0 |
| Average daytime temperature (°C) | 14.6 | 16.6 | 17.4 | 23.4 | 23.6 | 28.8 | 32.7 | 31.6 | 27.8 | 23.2 | 16.2 | 14.3 |
| Average temperature (°C) | 9.1 | 10.9 | 11.4 | 16.8 | 18.4 | 22.6 | 26.9 | 25.9 | 22.4 | 17.2 | 10.6 | 8.6 |
| Average night temperature (°C) | 5.1 | 6.5 | 6.3 | 11.4 | 13.8 | 17.7 | 22.4 | 21.5 | 18.3 | 12.5 | 6.3 | 4.5 |
| Absolute minimum temperature (°C) | -2.0 | -6.8 | -1.0 | 3.0 | 8.2 | 11.5 | 18.9 | 18.0 | 13.2 | 6.2 | -3.9 | -1.9 |
| 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 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 10.0 | 10.9 | 12.0 | 13.1 | 14.1 | 14.6 | 14.4 | 13.5 | 12.4 | 11.3 | 10.2 | 9.7 |
| 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) | 6.0 | 6.9 | 8.1 | 9.2 | 9.5 | 11.1 | 11.3 | 10.4 | 8.8 | 8.8 | 7.7 | 6.6 |
| Precipitation (mm) | 73 | 49 | 67 | 179 | 72 | 94 | 102 | 110 | 111 | 34 | 58 | 140 |
| Sunny days | 16 | 13 | 17 | 13 | 11 | 11 | 9 | 14 | 14 | 24 | 24 | 18 |
| Rainy days | 15 | 15 | 14 | 17 | 20 | 19 | 22 | 17 | 16 | 7 | 6 | 13 |
| 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