Average annual temperature is 18.0 °C
Absolute maximum temperature: 36.3 °C
Absolute minimum temperature: -2.9 °C
Number of sunny days: 180 days
Number of rainy days: 185 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) | 21.1 | 26.2 | 28.8 | 30.6 | 33.6 | 33.9 | 35.0 | 36.3 | 31.9 | 27.8 | 26.8 | 22.2 |
| Average daytime temperature (°C) | 15.1 | 18.7 | 20.7 | 24.2 | 25.4 | 29.5 | 32.8 | 32.7 | 27.7 | 23.0 | 17.5 | 14.6 |
| Average temperature (°C) | 10.0 | 13.2 | 14.5 | 17.9 | 19.8 | 23.8 | 27.3 | 26.9 | 22.4 | 17.7 | 12.2 | 9.6 |
| Average night temperature (°C) | 6.1 | 8.9 | 9.2 | 12.2 | 15.0 | 18.8 | 22.6 | 22.3 | 17.8 | 13.3 | 8.2 | 5.7 |
| Absolute minimum temperature (°C) | -2.9 | -1.5 | -0.3 | 5.1 | 8.7 | 14.1 | 19.9 | 20.1 | 13.9 | 7.7 | -0.2 | -1.8 |
| 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 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 |
| Daylight mean duration (h) | 10.2 | 11.0 | 12.0 | 13.0 | 13.9 | 14.4 | 14.2 | 13.4 | 12.4 | 11.3 | 10.4 | 9.9 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 9.0 |
| Sunshine mean duration (h) | 6.3 | 7.2 | 8.4 | 9.6 | 9.5 | 11.1 | 11.6 | 10.8 | 10.2 | 8.9 | 7.4 | 6.6 |
| Precipitation (mm) | 146 | 91 | 103 | 116 | 133 | 97 | 93 | 133 | 38 | 57 | 43 | 136 |
| Sunny days | 17 | 13 | 17 | 14 | 12 | 12 | 8 | 9 | 17 | 22 | 19 | 20 |
| Rainy days | 14 | 15 | 14 | 16 | 19 | 18 | 23 | 22 | 13 | 9 | 11 | 11 |
| Snow days | 0 | 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