Average annual temperature is 13.7 °C
Absolute maximum temperature: 35.3 °C
Absolute minimum temperature: -11.4 °C
Number of sunny days: 197 days
Number of rainy days: 167 days
Number of snow days: 1 day
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) | 17.5 | 21.3 | 22.0 | 27.0 | 29.8 | 33.5 | 35.3 | 34.7 | 31.5 | 29.6 | 24.6 | 16.4 |
| Average daytime temperature (°C) | 7.4 | 11.2 | 12.2 | 19.3 | 24.6 | 28.5 | 30.5 | 28.8 | 26.6 | 20.2 | 13.4 | 9.1 |
| Average temperature (°C) | 3.3 | 5.0 | 6.2 | 12.3 | 18.1 | 22.3 | 24.9 | 23.5 | 20.8 | 14.8 | 7.7 | 4.8 |
| Average night temperature (°C) | 0.2 | 0.4 | 1.6 | 6.4 | 12.1 | 16.8 | 20.0 | 18.9 | 15.8 | 10.5 | 3.3 | 1.8 |
| Absolute minimum temperature (°C) | -11.4 | -10.8 | -7.1 | -1.9 | 3.2 | 11.3 | 16.1 | 13.5 | 11.3 | -2.8 | -7.2 | -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 | 14.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.8 | 10.7 | 12.0 | 13.2 | 14.3 | 14.9 | 14.6 | 13.7 | 12.4 | 11.2 | 10.1 | 9.5 |
| 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) | 4.2 | 7.3 | 6.7 | 9.2 | 11.2 | 12.1 | 11.9 | 10.6 | 10.4 | 7.5 | 8.0 | 5.1 |
| Precipitation (mm) | 136 | 72 | 243 | 65 | 29 | 65 | 90 | 84 | 38 | 65 | 24 | 55 |
| Sunny days | 12 | 17 | 16 | 17 | 17 | 22 | 9 | 13 | 20 | 17 | 23 | 14 |
| Rainy days | 18 | 11 | 15 | 13 | 14 | 8 | 22 | 18 | 10 | 14 | 7 | 17 |
| Snow days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Summit during the most sunny months:
The largest precipitation sum in Summit is at