Average annual temperature is 10.1 °C
Absolute maximum temperature: 30.3 °C
Absolute minimum temperature: -15.6 °C
Number of sunny days: 146 days
Number of rainy days: 204 days
Number of snow days: 15 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) | 14.8 | 17.4 | 16.7 | 26.0 | 26.5 | 30.0 | 30.3 | 29.7 | 29.7 | 24.8 | 17.4 | 12.4 |
| Average daytime temperature (°C) | 4.5 | 7.7 | 7.2 | 16.0 | 18.8 | 22.6 | 26.6 | 25.2 | 21.2 | 15.5 | 8.4 | 5.4 |
| Average temperature (°C) | 1.1 | 1.7 | 1.9 | 9.9 | 13.0 | 17.3 | 21.4 | 19.8 | 16.4 | 11.3 | 3.9 | 2.3 |
| Average night temperature (°C) | -1.3 | -2.8 | -1.9 | 5.2 | 7.8 | 12.8 | 17.2 | 15.7 | 12.8 | 8.0 | 0.4 | -0.1 |
| Absolute minimum temperature (°C) | -7.9 | -15.6 | -10.4 | -3.9 | 0.4 | 7.9 | 13.3 | 11.0 | 8.1 | -1.1 | -9.1 | -5.8 |
| 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) | 3.6 | 6.7 | 6.7 | 8.6 | 10.8 | 11.0 | 11.7 | 10.6 | 9.0 | 6.9 | 7.0 | 3.7 |
| Precipitation (mm) | 105 | 60 | 91 | 86 | 56 | 89 | 89 | 115 | 93 | 89 | 58 | 82 |
| Sunny days | 7 | 12 | 9 | 14 | 21 | 11 | 6 | 8 | 14 | 13 | 17 | 14 |
| Rainy days | 18 | 14 | 19 | 16 | 10 | 19 | 25 | 23 | 16 | 18 | 12 | 14 |
| Snow days | 6 | 2 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 3 |
The best time to visit Summit during the most sunny months:
The largest precipitation sum in Summit is at