Average annual temperature is 10.7 °C
Absolute maximum temperature: 31.9 °C
Absolute minimum temperature: -13.3 °C
Number of sunny days: 144 days
Number of rainy days: 200 days
Number of snow days: 21 days
Look at detailed online map of Borough of Mercer
* Weather data for Borough of 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) | 13.8 | 19.4 | 17.4 | 27.4 | 31.5 | 31.9 | 30.9 | 29.9 | 31.5 | 26.8 | 15.9 | 14.4 |
| Average daytime temperature (°C) | 5.1 | 9.0 | 7.9 | 16.6 | 21.1 | 24.3 | 27.1 | 25.6 | 23.0 | 16.3 | 9.1 | 7.0 |
| Average temperature (°C) | 1.3 | 1.9 | 2.5 | 10.0 | 14.4 | 18.5 | 21.5 | 20.0 | 17.5 | 11.9 | 4.4 | 3.5 |
| Average night temperature (°C) | -1.5 | -2.8 | -1.4 | 4.5 | 8.3 | 13.3 | 17.1 | 15.7 | 13.2 | 8.4 | 0.8 | 0.8 |
| Absolute minimum temperature (°C) | -8.5 | -13.3 | -8.0 | -4.1 | 1.1 | 8.5 | 13.5 | 11.1 | 7.7 | 0.5 | -8.1 | -6.1 |
| 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) | 2.5 | 6.3 | 5.7 | 8.1 | 11.0 | 10.8 | 11.4 | 10.6 | 8.8 | 6.2 | 6.3 | 3.4 |
| Precipitation (mm) | 156 | 76 | 123 | 87 | 49 | 143 | 136 | 108 | 33 | 75 | 60 | 87 |
| Sunny days | 5 | 11 | 7 | 14 | 21 | 11 | 5 | 9 | 16 | 16 | 17 | 12 |
| Rainy days | 17 | 13 | 20 | 16 | 10 | 19 | 26 | 22 | 14 | 15 | 12 | 16 |
| Snow days | 9 | 4 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 3 |
The best time to visit Borough of Mercer during the most sunny months:
The largest precipitation sum in Borough of Mercer is at