Average annual temperature is 12.0 °C
Absolute maximum temperature: 31.8 °C
Absolute minimum temperature: -10.1 °C
Number of sunny days: 171 days
Number of rainy days: 188 days
Number of snow days: 6 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) | 18.4 | 22.9 | 23.3 | 26.3 | 25.2 | 29.2 | 31.8 | 31.1 | 31.0 | 25.8 | 22.4 | 16.4 |
| Average daytime temperature (°C) | 9.1 | 12.2 | 12.7 | 19.0 | 20.5 | 23.7 | 28.4 | 26.8 | 24.6 | 18.9 | 13.1 | 9.4 |
| Average temperature (°C) | 3.8 | 6.3 | 6.4 | 11.7 | 14.6 | 17.7 | 22.1 | 20.9 | 17.9 | 12.6 | 6.2 | 3.9 |
| Average night temperature (°C) | 0.3 | 2.1 | 1.4 | 5.6 | 9.6 | 12.6 | 16.9 | 16.3 | 12.7 | 7.6 | 1.4 | 0.3 |
| Absolute minimum temperature (°C) | -8.6 | -10.1 | -9.0 | -1.7 | 1.2 | 6.1 | 11.5 | 10.3 | 8.3 | 0.1 | -7.7 | -6.4 |
| 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 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 10.0 | 10.8 | 12.0 | 13.1 | 14.1 | 14.7 | 14.4 | 13.5 | 12.4 | 11.2 | 10.2 | 9.7 |
| 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) | 4.7 | 6.1 | 8.0 | 9.6 | 9.8 | 10.6 | 11.7 | 10.2 | 10.2 | 8.3 | 7.8 | 5.8 |
| Precipitation (mm) | 88 | 91 | 75 | 103 | 79 | 76 | 81 | 72 | 31 | 17 | 35 | 67 |
| Sunny days | 12 | 10 | 16 | 17 | 11 | 10 | 10 | 13 | 15 | 20 | 21 | 16 |
| Rainy days | 17 | 18 | 13 | 13 | 20 | 20 | 21 | 18 | 15 | 11 | 8 | 14 |
| Snow days | 2 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
The best time to visit Summit during the most sunny months:
The largest precipitation sum in Summit is at