Average annual temperature is 12.7 °C
Absolute maximum temperature: 34.0 °C
Absolute minimum temperature: -11.1 °C
Number of sunny days: 184 days
Number of rainy days: 171 days
Number of snow days: 10 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) | 17.2 | 20.0 | 20.8 | 26.6 | 29.6 | 31.8 | 34.0 | 33.1 | 31.8 | 29.5 | 23.9 | 15.7 |
| Average daytime temperature (°C) | 5.8 | 9.9 | 10.8 | 17.8 | 23.2 | 27.7 | 29.3 | 27.9 | 25.7 | 19.1 | 12.1 | 8.3 |
| Average temperature (°C) | 2.3 | 3.8 | 4.9 | 11.1 | 17.1 | 21.6 | 23.8 | 22.7 | 20.0 | 13.8 | 6.5 | 4.2 |
| Average night temperature (°C) | -0.5 | -0.5 | 0.5 | 5.5 | 11.1 | 16.1 | 18.8 | 18.0 | 15.0 | 9.6 | 2.3 | 1.1 |
| Absolute minimum temperature (°C) | -10.1 | -11.1 | -8.0 | -2.7 | 3.3 | 11.2 | 15.0 | 12.2 | 10.7 | -3.7 | -8.9 | -7.3 |
| 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) | 9.7 | 10.7 | 12.0 | 13.3 | 14.4 | 14.9 | 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) | 3.9 | 7.2 | 6.6 | 8.9 | 10.7 | 11.4 | 12.2 | 11.0 | 10.0 | 7.3 | 7.8 | 4.4 |
| Precipitation (mm) | 140 | 73 | 177 | 83 | 50 | 50 | 112 | 120 | 25 | 86 | 25 | 56 |
| Sunny days | 9 | 16 | 14 | 16 | 17 | 16 | 9 | 15 | 20 | 16 | 23 | 13 |
| Rainy days | 16 | 11 | 15 | 14 | 14 | 14 | 22 | 16 | 10 | 15 | 7 | 17 |
| Snow days | 6 | 1 | 2 | 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