Average annual temperature is 13.3 °C
Absolute maximum temperature: 40.2 °C
Absolute minimum temperature: -16.5 °C
Number of sunny days: 231 days
Number of rainy days: 123 days
Number of snow days: 11 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) | 12.0 | 16.6 | 23.1 | 29.5 | 32.0 | 35.7 | 38.0 | 40.2 | 36.1 | 32.2 | 22.4 | 16.2 |
| Average daytime temperature (°C) | 4.2 | 8.4 | 10.5 | 20.6 | 26.0 | 30.0 | 30.4 | 31.9 | 28.8 | 19.9 | 12.7 | 7.8 |
| Average temperature (°C) | -0.6 | 1.1 | 4.3 | 12.6 | 19.5 | 24.0 | 24.8 | 25.7 | 22.6 | 14.2 | 7.1 | 3.3 |
| Average night temperature (°C) | -4.4 | -3.8 | -0.3 | 6.6 | 13.7 | 18.2 | 20.1 | 20.9 | 17.3 | 9.6 | 2.8 | -0.1 |
| Absolute minimum temperature (°C) | -14.9 | -16.5 | -10.0 | -3.6 | 4.6 | 11.6 | 14.9 | 14.0 | 11.6 | -5.2 | -6.0 | -4.7 |
| 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 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.7 | 10.7 | 12.0 | 13.3 | 14.4 | 15.0 | 14.7 | 13.7 | 12.5 | 11.2 | 10.0 | 9.4 |
| 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) | 6.2 | 8.4 | 7.8 | 10.1 | 11.1 | 12.4 | 11.3 | 11.5 | 10.6 | 8.0 | 7.0 | 5.2 |
| Precipitation (mm) | 35 | 58 | 22 | 31 | 62 | 90 | 86 | 45 | 11 | 33 | 23 | 53 |
| Sunny days | 22 | 22 | 18 | 23 | 15 | 14 | 14 | 19 | 23 | 18 | 23 | 20 |
| Rainy days | 5 | 4 | 12 | 7 | 16 | 16 | 17 | 12 | 7 | 13 | 5 | 9 |
| Snow days | 4 | 2 | 1 | 0 | 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