Average annual temperature is 11.8 °C
Absolute maximum temperature: 35.7 °C
Absolute minimum temperature: -21.5 °C
Number of sunny days: 208 days
Number of rainy days: 141 days
Number of snow days: 16 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) | 13.2 | 11.5 | 21.7 | 25.9 | 32.2 | 34.1 | 34.2 | 35.7 | 33.4 | 30.8 | 18.5 | 14.2 |
| Average daytime temperature (°C) | 2.4 | 5.2 | 8.3 | 17.5 | 25.1 | 29.4 | 28.8 | 28.0 | 26.5 | 18.1 | 10.3 | 6.8 |
| Average temperature (°C) | -1.8 | -0.6 | 2.9 | 10.5 | 18.5 | 23.4 | 23.5 | 23.1 | 20.5 | 13.4 | 5.2 | 2.7 |
| Average night temperature (°C) | -4.8 | -5.2 | -1.0 | 4.9 | 12.2 | 17.2 | 18.4 | 18.6 | 15.7 | 9.4 | 1.1 | 0.0 |
| Absolute minimum temperature (°C) | -21.5 | -19.1 | -12.1 | -2.2 | 3.2 | 9.7 | 13.6 | 11.7 | 10.9 | -3.1 | -11.8 | -7.5 |
| 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 | 9.2 |
| 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) | 4.1 | 7.3 | 7.1 | 9.5 | 11.7 | 12.5 | 12.5 | 11.2 | 9.9 | 7.4 | 7.3 | 4.5 |
| Precipitation (mm) | 74 | 105 | 99 | 32 | 34 | 23 | 74 | 42 | 55 | 72 | 17 | 74 |
| Sunny days | 15 | 16 | 14 | 18 | 23 | 18 | 15 | 17 | 15 | 18 | 23 | 16 |
| Rainy days | 10 | 9 | 15 | 11 | 8 | 12 | 16 | 14 | 15 | 13 | 5 | 13 |
| Snow days | 6 | 3 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 |
The best time to visit Summit during the most sunny months:
The largest precipitation sum in Summit is at