Average annual temperature is 11.9 °C
Absolute maximum temperature: 34.9 °C
Absolute minimum temperature: -18.8 °C
Number of sunny days: 219 days
Number of rainy days: 124 days
Number of snow days: 22 days
Look at detailed online map of Mercer
* Weather data for Mercer 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) | 9.8 | 15.3 | 22.4 | 27.9 | 30.1 | 31.7 | 34.1 | 34.9 | 33.1 | 31.0 | 19.0 | 14.8 |
| Average daytime temperature (°C) | 2.2 | 6.0 | 8.9 | 17.8 | 24.7 | 29.1 | 28.4 | 28.3 | 26.7 | 18.2 | 11.1 | 7.1 |
| Average temperature (°C) | -2.1 | -0.6 | 2.7 | 10.8 | 18.4 | 23.2 | 23.4 | 23.5 | 20.9 | 13.2 | 5.7 | 2.7 |
| Average night temperature (°C) | -5.2 | -5.3 | -1.7 | 5.1 | 12.5 | 17.5 | 18.9 | 19.4 | 16.0 | 9.0 | 1.4 | -0.5 |
| Absolute minimum temperature (°C) | -16.9 | -18.8 | -12.4 | -5.1 | 2.4 | 9.5 | 12.8 | 13.1 | 10.6 | -4.8 | -8.5 | -5.2 |
| 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) | 5.4 | 7.7 | 7.5 | 9.6 | 11.5 | 12.4 | 11.7 | 11.3 | 10.7 | 7.9 | 7.1 | 5.3 |
| Precipitation (mm) | 55 | 56 | 38 | 54 | 68 | 100 | 82 | 86 | 24 | 72 | 7 | 51 |
| Sunny days | 16 | 19 | 15 | 18 | 16 | 17 | 19 | 17 | 22 | 17 | 24 | 19 |
| Rainy days | 7 | 7 | 13 | 10 | 15 | 13 | 12 | 14 | 8 | 13 | 4 | 8 |
| Snow days | 8 | 2 | 3 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 4 |
The best time to visit Mercer during the most sunny months:
The largest precipitation sum in Mercer is at