Average annual temperature is 9.4 °C
Absolute maximum temperature: 36.4 °C
Absolute minimum temperature: -19.6 °C
Number of sunny days: 228 days
Number of rainy days: 104 days
Number of snow days: 33 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) | 6.1 | 6.3 | 7.7 | 23.6 | 24.1 | 27.9 | 36.4 | 32.5 | 29.4 | 23.9 | 20.1 | 11.9 |
| Average daytime temperature (°C) | 0.7 | 1.3 | 3.3 | 13.1 | 20.7 | 24.4 | 32.9 | 28.5 | 24.6 | 18.3 | 10.1 | 6.8 |
| Average temperature (°C) | -3.7 | -3.6 | -1.2 | 6.0 | 13.9 | 17.5 | 25.9 | 21.8 | 17.3 | 11.5 | 4.7 | 1.7 |
| Average night temperature (°C) | -8.0 | -8.5 | -6.0 | -0.6 | 6.9 | 10.6 | 17.6 | 15.4 | 11.0 | 5.7 | 0.3 | -2.3 |
| Absolute minimum temperature (°C) | -19.6 | -17.8 | -16.3 | -17.5 | 0.9 | 8.1 | 12.6 | 12.6 | 6.7 | -5.2 | -11.0 | -7.3 |
| 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) | 6.2 | 8.5 | 8.5 | 11.8 | 12.7 | 12.9 | 13.2 | 11.5 | 10.8 | 10.2 | 8.6 | 8.1 |
| Precipitation (mm) | 81 | 51 | 111 | 25 | 10 | 18 | 4 | 56 | 13 | 11 | 46 | 10 |
| Sunny days | 8 | 16 | 11 | 23 | 13 | 19 | 27 | 16 | 21 | 25 | 22 | 27 |
| Rainy days | 10 | 3 | 14 | 6 | 18 | 11 | 4 | 15 | 9 | 6 | 6 | 2 |
| Snow days | 13 | 9 | 6 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 |
The best time to visit Summit during the most sunny months:
The largest precipitation sum in Summit is at