Average annual temperature is 13.0 °C
Absolute maximum temperature: 35.7 °C
Absolute minimum temperature: -15.7 °C
Number of sunny days: 173 days
Number of rainy days: 189 days
Number of snow days: 3 days
Look at detailed online map of Summit
* Weather data for Summit 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 | 19.9 | 16.4 | 32.0 | 30.8 | 33.5 | 34.7 | 31.5 | 35.7 | 28.4 | 20.0 | 16.2 |
| Average daytime temperature (°C) | 8.9 | 8.6 | 10.7 | 19.0 | 22.4 | 26.3 | 30.4 | 28.1 | 24.9 | 19.8 | 11.5 | 9.2 |
| Average temperature (°C) | 4.8 | 3.5 | 5.2 | 12.8 | 16.0 | 20.2 | 24.6 | 22.9 | 19.8 | 14.5 | 6.4 | 5.0 |
| Average night temperature (°C) | 1.4 | -0.9 | 0.7 | 7.7 | 9.9 | 15.1 | 19.9 | 18.6 | 15.8 | 10.4 | 2.2 | 1.6 |
| Absolute minimum temperature (°C) | -4.0 | -15.7 | -4.3 | 0.4 | 4.2 | 9.6 | 16.2 | 15.3 | 9.4 | 5.7 | -4.6 | -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 | 10.7 | 11.9 | 13.3 | 14.4 | 15.0 | 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) | 4.4 | 6.7 | 7.4 | 8.6 | 11.9 | 10.1 | 11.5 | 10.1 | 7.8 | 7.7 | 7.4 | 5.0 |
| Precipitation (mm) | 126 | 49 | 114 | 129 | 42 | 99 | 182 | 110 | 221 | 100 | 74 | 219 |
| Sunny days | 14 | 18 | 12 | 14 | 20 | 10 | 10 | 12 | 11 | 17 | 18 | 17 |
| Rainy days | 17 | 8 | 18 | 16 | 11 | 20 | 21 | 19 | 19 | 14 | 12 | 14 |
| Snow days | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Summit during the most sunny months:
The largest precipitation sum in Summit is at