Average annual temperature is 13.0 °C
Absolute maximum temperature: 36.0 °C
Absolute minimum temperature: -13.5 °C
Number of sunny days: 200 days
Number of rainy days: 158 days
Number of snow days: 7 days
Look at detailed online map of Monticello
* Weather data for Monticello 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) | 18.8 | 16.8 | 20.8 | 27.4 | 31.9 | 33.5 | 33.9 | 36.0 | 31.8 | 29.4 | 24.5 | 16.1 |
| Average daytime temperature (°C) | 6.0 | 9.1 | 10.8 | 19.1 | 25.4 | 29.4 | 29.0 | 27.8 | 25.8 | 18.9 | 12.3 | 8.4 |
| Average temperature (°C) | 1.6 | 3.1 | 5.0 | 12.0 | 18.7 | 23.2 | 23.8 | 23.0 | 20.3 | 14.0 | 6.8 | 4.3 |
| Average night temperature (°C) | -1.5 | -1.2 | 0.6 | 6.1 | 12.3 | 16.9 | 18.9 | 18.6 | 15.6 | 9.8 | 2.2 | 1.6 |
| Absolute minimum temperature (°C) | -12.6 | -13.5 | -9.7 | -1.9 | 3.3 | 10.3 | 14.3 | 11.8 | 10.3 | -2.7 | -9.3 | -7.7 |
| 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 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.7 | 10.7 | 12.0 | 13.3 | 14.4 | 15.0 | 14.7 | 13.7 | 12.5 | 11.1 | 10.0 | 9.4 |
| 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 | 7.5 | 6.6 | 9.8 | 10.8 | 12.5 | 12.4 | 10.7 | 10.0 | 7.5 | 7.7 | 4.6 |
| Precipitation (mm) | 70 | 74 | 127 | 56 | 53 | 41 | 106 | 115 | 83 | 94 | 22 | 79 |
| Sunny days | 13 | 19 | 14 | 18 | 19 | 22 | 11 | 12 | 18 | 16 | 22 | 16 |
| Rainy days | 13 | 8 | 16 | 12 | 12 | 8 | 20 | 19 | 12 | 15 | 8 | 15 |
| Snow days | 5 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Monticello during the most sunny months:
The largest precipitation sum in Monticello is at