Average annual temperature is 11.4 °C
Absolute maximum temperature: 38.9 °C
Absolute minimum temperature: -21.7 °C
Number of sunny days: 228 days
Number of rainy days: 113 days
Number of snow days: 24 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) | 9.3 | 13.7 | 19.2 | 27.9 | 28.2 | 33.0 | 36.9 | 38.9 | 35.8 | 30.0 | 18.7 | 14.3 |
| Average daytime temperature (°C) | 0.5 | 4.7 | 8.8 | 18.2 | 24.2 | 28.4 | 30.2 | 31.6 | 27.8 | 18.3 | 12.0 | 5.8 |
| Average temperature (°C) | -3.8 | -2.0 | 1.6 | 10.6 | 18.1 | 22.2 | 24.1 | 25.1 | 21.3 | 12.2 | 5.8 | 0.9 |
| Average night temperature (°C) | -7.0 | -6.4 | -3.5 | 4.4 | 12.3 | 16.5 | 18.8 | 19.8 | 15.6 | 7.2 | 1.2 | -2.6 |
| Absolute minimum temperature (°C) | -21.7 | -19.4 | -9.8 | -5.5 | 2.2 | 10.3 | 12.6 | 14.0 | 10.2 | -8.2 | -6.5 | -7.9 |
| 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 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.6 | 10.6 | 11.9 | 13.3 | 14.5 | 15.0 | 14.8 | 13.8 | 12.5 | 11.1 | 9.9 | 9.3 |
| 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) | 5.6 | 8.0 | 8.5 | 11.1 | 10.7 | 12.2 | 11.8 | 11.4 | 10.4 | 7.8 | 7.1 | 4.6 |
| Precipitation (mm) | 60 | 28 | 34 | 11 | 62 | 118 | 132 | 23 | 56 | 35 | 20 | 47 |
| Sunny days | 18 | 19 | 21 | 25 | 13 | 15 | 11 | 21 | 22 | 20 | 23 | 20 |
| Rainy days | 6 | 3 | 7 | 4 | 18 | 15 | 20 | 10 | 8 | 10 | 5 | 7 |
| Snow days | 7 | 6 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 4 |
The best time to visit Riverdale during the most sunny months:
The largest precipitation sum in Riverdale is at