Average annual temperature is 12.6 °C
Absolute maximum temperature: 35.9 °C
Absolute minimum temperature: -19.5 °C
Number of sunny days: 221 days
Number of rainy days: 127 days
Number of snow days: 17 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) | 10.8 | 16.4 | 22.2 | 28.8 | 30.0 | 33.3 | 35.3 | 35.9 | 33.5 | 31.9 | 20.1 | 15.7 |
| Average daytime temperature (°C) | 3.0 | 7.1 | 10.0 | 19.5 | 25.9 | 30.0 | 28.9 | 29.1 | 27.5 | 19.2 | 12.1 | 7.4 |
| Average temperature (°C) | -1.4 | 0.1 | 3.6 | 12.0 | 19.3 | 24.0 | 23.9 | 24.1 | 21.6 | 14.0 | 6.3 | 3.0 |
| Average night temperature (°C) | -4.7 | -4.7 | -0.9 | 6.0 | 13.2 | 17.9 | 19.4 | 19.8 | 16.4 | 9.6 | 1.7 | -0.6 |
| Absolute minimum temperature (°C) | -15.6 | -19.5 | -11.0 | -4.9 | 3.2 | 10.7 | 14.2 | 13.0 | 10.7 | -4.4 | -7.1 | -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 | 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 | 15.0 | 14.8 | 13.8 | 12.5 | 11.1 | 9.9 | 9.3 |
| 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) | 5.6 | 7.7 | 7.7 | 9.6 | 11.7 | 12.8 | 11.1 | 11.2 | 10.7 | 7.9 | 7.0 | 5.4 |
| Precipitation (mm) | 28 | 81 | 35 | 37 | 93 | 83 | 92 | 49 | 39 | 33 | 13 | 47 |
| Sunny days | 20 | 19 | 19 | 20 | 16 | 15 | 15 | 15 | 21 | 17 | 23 | 21 |
| Rainy days | 5 | 6 | 10 | 8 | 15 | 15 | 16 | 16 | 9 | 13 | 6 | 8 |
| Snow days | 6 | 3 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 2 |
The best time to visit Summit during the most sunny months:
The largest precipitation sum in Summit is at