Average annual temperature is 14.0 °C
Absolute maximum temperature: 35.3 °C
Absolute minimum temperature: -7.8 °C
Number of sunny days: 177 days
Number of rainy days: 185 days
Number of snow days: 3 days
Look at detailed online map of Mercerville
* Weather data for Mercerville 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) | 18.9 | 24.3 | 24.3 | 29.2 | 29.2 | 34.3 | 35.3 | 33.5 | 34.3 | 28.9 | 24.8 | 18.8 |
| Average daytime temperature (°C) | 10.1 | 13.9 | 13.8 | 20.3 | 23.6 | 27.6 | 30.7 | 29.4 | 26.6 | 20.5 | 14.0 | 10.9 |
| Average temperature (°C) | 4.9 | 6.9 | 7.2 | 13.3 | 17.1 | 21.3 | 24.6 | 23.4 | 20.5 | 14.9 | 7.8 | 5.7 |
| Average night temperature (°C) | 1.5 | 2.1 | 2.2 | 7.5 | 11.5 | 15.6 | 19.6 | 18.6 | 15.4 | 10.4 | 3.4 | 2.1 |
| Absolute minimum temperature (°C) | -6.5 | -7.8 | -7.6 | 1.5 | 4.4 | 10.7 | 16.0 | 13.2 | 11.0 | 2.6 | -6.1 | -4.7 |
| 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 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.8 | 10.8 | 12.0 | 13.2 | 14.3 | 14.8 | 14.6 | 13.6 | 12.4 | 11.2 | 10.1 | 9.5 |
| 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) | 4.5 | 7.3 | 7.7 | 9.4 | 10.2 | 11.2 | 11.9 | 10.7 | 9.7 | 7.3 | 7.3 | 5.4 |
| Precipitation (mm) | 105 | 78 | 99 | 64 | 71 | 63 | 63 | 102 | 41 | 48 | 42 | 78 |
| Sunny days | 8 | 15 | 18 | 17 | 17 | 15 | 7 | 14 | 14 | 16 | 21 | 15 |
| Rainy days | 21 | 13 | 12 | 13 | 14 | 15 | 24 | 17 | 16 | 15 | 9 | 16 |
| Snow days | 2 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Mercerville during the most sunny months:
The largest precipitation sum in Mercerville is at