Average annual temperature is 12.6 °C
Absolute maximum temperature: 35.5 °C
Absolute minimum temperature: -12.2 °C
Number of sunny days: 178 days
Number of rainy days: 174 days
Number of snow days: 13 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) | 17.6 | 18.1 | 19.4 | 26.3 | 31.2 | 33.0 | 34.9 | 35.5 | 32.5 | 29.3 | 23.6 | 15.6 |
| Average daytime temperature (°C) | 5.8 | 9.3 | 10.0 | 18.1 | 23.9 | 28.3 | 29.3 | 27.7 | 25.7 | 18.7 | 11.8 | 8.3 |
| Average temperature (°C) | 2.0 | 3.2 | 4.4 | 11.2 | 17.5 | 21.8 | 23.7 | 22.7 | 20.2 | 13.8 | 6.4 | 4.3 |
| Average night temperature (°C) | -0.8 | -1.1 | 0.1 | 5.4 | 11.5 | 15.8 | 18.6 | 18.0 | 15.3 | 9.9 | 2.0 | 1.4 |
| Absolute minimum temperature (°C) | -11.7 | -12.2 | -9.2 | -3.1 | 1.7 | 9.5 | 13.8 | 11.7 | 9.9 | -3.1 | -9.2 | -7.3 |
| 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) | 9.7 | 10.7 | 11.9 | 13.3 | 14.4 | 15.0 | 14.7 | 13.7 | 12.5 | 11.1 | 10.0 | 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) | 3.4 | 7.3 | 6.3 | 8.8 | 10.7 | 11.5 | 12.2 | 10.8 | 10.0 | 6.9 | 7.4 | 4.5 |
| Precipitation (mm) | 86 | 100 | 121 | 74 | 55 | 26 | 87 | 96 | 41 | 101 | 22 | 64 |
| Sunny days | 7 | 16 | 12 | 19 | 17 | 18 | 11 | 14 | 16 | 13 | 23 | 12 |
| Rainy days | 17 | 10 | 17 | 11 | 14 | 12 | 20 | 17 | 14 | 18 | 6 | 18 |
| Snow days | 7 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
The best time to visit Summit during the most sunny months:
The largest precipitation sum in Summit is at