Average annual temperature is 10.8 °C
Absolute maximum temperature: 34.8 °C
Absolute minimum temperature: -18.6 °C
Number of sunny days: 160 days
Number of rainy days: 186 days
Number of snow days: 19 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) | 15.4 | 12.9 | 19.0 | 26.1 | 32.5 | 33.0 | 32.5 | 34.8 | 31.2 | 28.1 | 19.0 | 13.4 |
| Average daytime temperature (°C) | 3.5 | 5.7 | 7.2 | 16.2 | 21.7 | 26.5 | 27.5 | 25.9 | 23.4 | 16.4 | 9.8 | 6.4 |
| Average temperature (°C) | 0.0 | 0.4 | 2.3 | 9.6 | 15.3 | 19.8 | 22.0 | 20.9 | 18.4 | 12.3 | 5.0 | 3.4 |
| Average night temperature (°C) | -2.5 | -3.4 | -1.2 | 4.5 | 10.0 | 14.7 | 17.4 | 16.8 | 14.5 | 9.2 | 1.5 | 1.0 |
| Absolute minimum temperature (°C) | -13.2 | -18.6 | -9.2 | -3.5 | 0.9 | 9.4 | 13.5 | 10.7 | 9.0 | -3.9 | -8.8 | -7.0 |
| 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 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.6 | 10.6 | 11.9 | 13.3 | 14.5 | 15.1 | 14.9 | 13.8 | 12.5 | 11.1 | 9.9 | 9.2 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 14.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 3.0 | 7.2 | 6.1 | 9.0 | 10.1 | 11.5 | 12.0 | 10.8 | 8.8 | 6.0 | 6.6 | 3.6 |
| Precipitation (mm) | 83 | 103 | 126 | 80 | 115 | 79 | 138 | 150 | 83 | 163 | 39 | 82 |
| Sunny days | 8 | 16 | 11 | 14 | 18 | 18 | 11 | 14 | 12 | 8 | 20 | 10 |
| Rainy days | 14 | 10 | 18 | 14 | 13 | 12 | 20 | 17 | 18 | 23 | 9 | 18 |
| Snow days | 9 | 2 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 3 |
The best time to visit Summit during the most sunny months:
The largest precipitation sum in Summit is at