Average annual temperature is 14.3 °C
Absolute maximum temperature: 37.6 °C
Absolute minimum temperature: -10.9 °C
Number of sunny days: 190 days
Number of rainy days: 171 days
Number of snow days: 4 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) | 19.0 | 20.5 | 24.4 | 27.9 | 30.3 | 37.4 | 36.2 | 37.6 | 32.3 | 28.6 | 26.3 | 17.7 |
| Average daytime temperature (°C) | 8.7 | 11.9 | 13.1 | 20.3 | 25.3 | 29.6 | 31.8 | 29.7 | 27.1 | 20.5 | 14.6 | 10.8 |
| Average temperature (°C) | 3.8 | 5.6 | 7.0 | 13.3 | 18.8 | 23.0 | 25.5 | 24.2 | 20.8 | 14.9 | 8.6 | 5.9 |
| Average night temperature (°C) | 0.4 | 1.0 | 2.4 | 7.6 | 13.4 | 17.2 | 20.5 | 20.0 | 15.9 | 10.8 | 4.2 | 2.5 |
| Absolute minimum temperature (°C) | -10.9 | -9.3 | -7.2 | 0.6 | 6.0 | 11.4 | 16.1 | 13.6 | 10.8 | -3.0 | -4.9 | -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 | 14.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.7 | 14.5 | 13.6 | 12.4 | 11.2 | 10.1 | 9.6 |
| 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) | 5.4 | 7.1 | 7.3 | 10.2 | 11.1 | 12.8 | 11.6 | 9.6 | 10.5 | 7.5 | 7.7 | 6.1 |
| Precipitation (mm) | 72 | 61 | 227 | 72 | 60 | 29 | 138 | 153 | 46 | 58 | 20 | 58 |
| Sunny days | 15 | 17 | 13 | 19 | 16 | 17 | 6 | 15 | 13 | 17 | 23 | 19 |
| Rainy days | 14 | 11 | 17 | 11 | 15 | 13 | 25 | 16 | 17 | 14 | 7 | 11 |
| Snow days | 2 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The best time to visit Summit during the most sunny months:
The largest precipitation sum in Summit is at