Average annual temperature is 11.4 °C
Absolute maximum temperature: 34.3 °C
Absolute minimum temperature: -13.1 °C
Number of sunny days: 153 days
Number of rainy days: 199 days
Number of snow days: 13 days
Look at detailed online map of Lemont
* Weather data for Lemont 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) | 14.6 | 19.0 | 18.5 | 29.3 | 31.6 | 33.5 | 34.3 | 32.6 | 32.0 | 27.0 | 18.6 | 14.1 |
| Average daytime temperature (°C) | 5.7 | 8.6 | 8.9 | 18.0 | 21.7 | 25.6 | 29.8 | 27.5 | 23.3 | 17.5 | 9.9 | 7.0 |
| Average temperature (°C) | 2.3 | 2.3 | 3.2 | 11.2 | 14.8 | 19.2 | 23.4 | 21.3 | 17.6 | 12.4 | 4.7 | 3.3 |
| Average night temperature (°C) | -0.3 | -2.3 | -1.2 | 5.3 | 7.5 | 13.3 | 17.3 | 16.1 | 12.8 | 8.2 | 0.5 | 0.4 |
| Absolute minimum temperature (°C) | -4.9 | -13.1 | -7.8 | -2.7 | 1.0 | 7.3 | 13.4 | 11.8 | 6.3 | -1.6 | -7.0 | -5.7 |
| 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) | 4.0 | 6.6 | 6.9 | 8.6 | 10.9 | 10.6 | 11.6 | 10.6 | 8.6 | 6.7 | 7.2 | 3.9 |
| Precipitation (mm) | 94 | 51 | 77 | 68 | 26 | 114 | 79 | 102 | 70 | 66 | 55 | 92 |
| Sunny days | 9 | 12 | 10 | 13 | 22 | 11 | 4 | 10 | 17 | 16 | 18 | 11 |
| Rainy days | 19 | 13 | 19 | 17 | 9 | 19 | 27 | 21 | 13 | 15 | 10 | 17 |
| Snow days | 3 | 3 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 3 |
The best time to visit Lemont during the most sunny months:
The largest precipitation sum in Lemont is at