Average annual temperature is 10.6 °C
Absolute maximum temperature: 32.4 °C
Absolute minimum temperature: -13.8 °C
Number of sunny days: 142 days
Number of rainy days: 202 days
Number of snow days: 21 days
Look at detailed online map of Borough of Summerville
* Weather data for Borough of Summerville 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) | 14.7 | 18.4 | 17.3 | 26.7 | 30.7 | 32.4 | 30.3 | 31.3 | 31.1 | 26.2 | 15.2 | 14.2 |
| Average daytime temperature (°C) | 5.3 | 8.4 | 7.7 | 17.0 | 20.9 | 23.8 | 27.0 | 25.4 | 22.4 | 16.1 | 9.0 | 6.9 |
| Average temperature (°C) | 1.7 | 1.9 | 2.4 | 10.2 | 14.2 | 18.2 | 21.6 | 20.0 | 17.1 | 11.8 | 4.3 | 3.4 |
| Average night temperature (°C) | -1.0 | -2.8 | -1.7 | 4.5 | 7.9 | 13.0 | 16.8 | 15.8 | 12.8 | 8.2 | 0.7 | 0.7 |
| Absolute minimum temperature (°C) | -7.6 | -13.8 | -8.3 | -4.2 | 0.9 | 7.5 | 12.8 | 10.6 | 7.5 | -0.5 | -8.0 | -5.7 |
| 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 | 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) | 2.6 | 6.4 | 5.9 | 8.3 | 10.6 | 10.6 | 11.1 | 10.7 | 8.5 | 5.8 | 6.7 | 3.7 |
| Precipitation (mm) | 129 | 82 | 105 | 79 | 58 | 131 | 104 | 92 | 58 | 107 | 51 | 86 |
| Sunny days | 5 | 10 | 8 | 14 | 21 | 12 | 7 | 9 | 10 | 16 | 17 | 13 |
| Rainy days | 17 | 16 | 18 | 16 | 10 | 18 | 24 | 22 | 20 | 15 | 11 | 15 |
| Snow days | 9 | 2 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 3 |
The best time to visit Borough of Summerville during the most sunny months:
The largest precipitation sum in Borough of Summerville is at