Average annual temperature is 11.5 °C
Absolute maximum temperature: 37.2 °C
Absolute minimum temperature: -23.8 °C
Number of sunny days: 198 days
Number of rainy days: 143 days
Number of snow days: 24 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) | 11.0 | 10.9 | 22.5 | 26.1 | 31.9 | 33.4 | 34.4 | 37.2 | 34.2 | 30.8 | 17.9 | 13.8 |
| Average daytime temperature (°C) | 1.6 | 4.1 | 7.7 | 16.9 | 24.5 | 29.2 | 28.7 | 28.6 | 26.4 | 17.7 | 9.9 | 6.5 |
| Average temperature (°C) | -2.5 | -1.5 | 2.4 | 10.1 | 17.8 | 23.1 | 23.4 | 23.5 | 20.6 | 13.0 | 4.9 | 2.3 |
| Average night temperature (°C) | -5.4 | -6.1 | -1.7 | 4.6 | 11.7 | 17.2 | 18.2 | 18.7 | 15.8 | 9.0 | 1.0 | -0.5 |
| Absolute minimum temperature (°C) | -23.8 | -22.6 | -12.7 | -3.0 | 3.0 | 9.6 | 12.9 | 12.3 | 11.0 | -3.7 | -12.5 | -7.7 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 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) | 9.5 | 10.6 | 11.9 | 13.4 | 14.6 | 15.2 | 14.9 | 13.8 | 12.5 | 11.1 | 9.8 | 9.2 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 4.4 | 7.2 | 7.1 | 9.2 | 11.9 | 12.4 | 12.3 | 11.2 | 9.5 | 7.2 | 7.1 | 4.3 |
| Precipitation (mm) | 58 | 80 | 70 | 51 | 48 | 30 | 63 | 54 | 63 | 124 | 23 | 62 |
| Sunny days | 16 | 16 | 11 | 18 | 21 | 17 | 14 | 16 | 16 | 17 | 20 | 16 |
| Rainy days | 6 | 9 | 16 | 11 | 10 | 13 | 17 | 15 | 14 | 13 | 8 | 11 |
| Snow days | 9 | 3 | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 4 |
The best time to visit Summit during the most sunny months:
The largest precipitation sum in Summit is at