Average annual temperature is 15.6 °C
Absolute maximum temperature: 36.8 °C
Absolute minimum temperature: -8.1 °C
Number of sunny days: 204 days
Number of rainy days: 160 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) | 19.4 | 25.7 | 26.9 | 31.6 | 30.3 | 32.2 | 36.8 | 35.0 | 36.0 | 28.3 | 26.6 | 21.4 |
| Average daytime temperature (°C) | 12.6 | 15.1 | 16.1 | 23.0 | 23.3 | 28.2 | 32.5 | 30.8 | 27.3 | 22.2 | 15.1 | 12.8 |
| Average temperature (°C) | 7.4 | 9.2 | 9.8 | 16.2 | 17.5 | 21.9 | 26.2 | 24.9 | 21.5 | 16.0 | 9.1 | 7.1 |
| Average night temperature (°C) | 3.7 | 4.5 | 4.8 | 10.3 | 12.6 | 16.6 | 21.5 | 20.4 | 17.0 | 11.3 | 4.7 | 2.9 |
| Absolute minimum temperature (°C) | -2.4 | -8.1 | -2.5 | 2.5 | 6.9 | 12.2 | 18.2 | 16.6 | 11.8 | 5.9 | -4.8 | -3.0 |
| 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) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.7 | 14.4 | 13.6 | 12.4 | 11.2 | 10.2 | 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) | 5.9 | 7.1 | 7.9 | 9.3 | 10.1 | 10.8 | 11.8 | 10.6 | 8.8 | 8.9 | 7.9 | 6.2 |
| Precipitation (mm) | 76 | 58 | 47 | 116 | 77 | 108 | 127 | 65 | 137 | 29 | 31 | 171 |
| Sunny days | 15 | 19 | 15 | 18 | 16 | 13 | 12 | 16 | 16 | 21 | 25 | 18 |
| Rainy days | 16 | 8 | 16 | 12 | 15 | 17 | 19 | 15 | 14 | 10 | 5 | 13 |
| Snow days | 0 | 1 | 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