Average annual temperature is 12.2 °C
Absolute maximum temperature: 35.9 °C
Absolute minimum temperature: -17.6 °C
Number of sunny days: 171 days
Number of rainy days: 187 days
Number of snow days: 7 days
Look at detailed online map of Mariandale
* Weather data for Mariandale 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) | 17.3 | 17.9 | 14.8 | 31.5 | 28.6 | 34.5 | 33.0 | 31.9 | 35.9 | 28.0 | 19.4 | 16.1 |
| Average daytime temperature (°C) | 7.4 | 7.2 | 9.6 | 17.9 | 21.4 | 25.3 | 29.6 | 27.1 | 24.1 | 19.0 | 10.5 | 8.7 |
| Average temperature (°C) | 3.6 | 2.3 | 4.5 | 11.9 | 15.3 | 19.6 | 23.9 | 21.9 | 19.0 | 13.8 | 5.4 | 4.2 |
| Average night temperature (°C) | 0.4 | -1.5 | 0.4 | 7.2 | 9.7 | 15.2 | 19.1 | 17.3 | 14.9 | 9.7 | 1.3 | 0.6 |
| Absolute minimum temperature (°C) | -3.7 | -17.6 | -3.3 | -0.4 | 5.9 | 10.5 | 13.8 | 12.9 | 8.1 | 4.0 | -3.9 | -5.8 |
| 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 | 15.1 | 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) | 5.0 | 6.3 | 7.5 | 8.8 | 12.2 | 10.7 | 11.5 | 10.2 | 7.8 | 7.4 | 7.3 | 4.9 |
| Precipitation (mm) | 141 | 50 | 121 | 118 | 44 | 94 | 194 | 98 | 229 | 143 | 63 | 217 |
| Sunny days | 14 | 16 | 12 | 15 | 20 | 10 | 6 | 10 | 14 | 17 | 21 | 16 |
| Rainy days | 16 | 10 | 16 | 15 | 11 | 20 | 25 | 21 | 16 | 14 | 9 | 14 |
| Snow days | 1 | 2 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The best time to visit Mariandale during the most sunny months:
The largest precipitation sum in Mariandale is at