Average annual temperature is 14.2 °C
Absolute maximum temperature: 37.8 °C
Absolute minimum temperature: -12.3 °C
Number of sunny days: 221 days
Number of rainy days: 140 days
Number of snow days: 4 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) | 14.3 | 18.9 | 25.1 | 31.4 | 30.7 | 35.5 | 34.8 | 37.8 | 33.4 | 31.3 | 22.5 | 16.0 |
| Average daytime temperature (°C) | 7.7 | 9.8 | 13.1 | 21.7 | 25.5 | 29.5 | 31.4 | 31.8 | 28.7 | 20.7 | 12.8 | 9.3 |
| Average temperature (°C) | 1.8 | 3.0 | 6.6 | 13.6 | 19.2 | 23.7 | 25.9 | 26.2 | 22.6 | 15.3 | 7.6 | 4.6 |
| Average night temperature (°C) | -2.1 | -2.2 | 1.7 | 7.3 | 14.0 | 18.3 | 21.1 | 21.2 | 17.3 | 10.8 | 3.3 | 1.3 |
| Absolute minimum temperature (°C) | -12.3 | -12.0 | -8.1 | -1.4 | 4.6 | 13.5 | 15.8 | 15.5 | 12.0 | -4.1 | -8.8 | -4.5 |
| 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) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.7 | 14.5 | 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) | 6.7 | 8.1 | 7.9 | 10.4 | 10.5 | 12.5 | 11.7 | 12.2 | 10.2 | 8.1 | 7.4 | 5.4 |
| Precipitation (mm) | 41 | 71 | 40 | 53 | 37 | 51 | 129 | 56 | 40 | 80 | 50 | 90 |
| Sunny days | 21 | 16 | 18 | 20 | 12 | 12 | 16 | 24 | 22 | 19 | 22 | 19 |
| Rainy days | 10 | 12 | 12 | 10 | 19 | 18 | 15 | 7 | 8 | 12 | 7 | 10 |
| Snow days | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 |
The best time to visit Summit during the most sunny months:
The largest precipitation sum in Summit is at