Average annual temperature is 15.0 °C
Absolute maximum temperature: 37.1 °C
Absolute minimum temperature: -9.7 °C
Number of sunny days: 210 days
Number of rainy days: 152 days
Number of snow days: 3 days
Look at detailed online map of McLeansboro
* Weather data for McLeansboro 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) | 19.7 | 22.9 | 24.3 | 28.1 | 31.3 | 35.1 | 36.0 | 37.1 | 32.0 | 30.2 | 25.2 | 17.5 |
| Average daytime temperature (°C) | 9.3 | 12.4 | 14.1 | 20.7 | 25.6 | 30.0 | 31.2 | 30.0 | 27.5 | 21.1 | 14.5 | 10.7 |
| Average temperature (°C) | 4.8 | 6.4 | 7.9 | 14.0 | 19.6 | 23.7 | 25.9 | 24.7 | 21.8 | 15.9 | 8.9 | 6.0 |
| Average night temperature (°C) | 1.3 | 2.2 | 3.1 | 8.5 | 14.3 | 18.1 | 21.2 | 20.3 | 16.8 | 11.5 | 4.6 | 2.7 |
| Absolute minimum temperature (°C) | -8.9 | -9.7 | -6.5 | 1.5 | 6.8 | 13.2 | 17.3 | 14.5 | 12.9 | -1.9 | -4.6 | -6.2 |
| 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 | 14.8 | 14.5 | 13.6 | 12.4 | 11.2 | 10.1 | 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) | 5.1 | 7.4 | 7.5 | 10.2 | 11.4 | 12.7 | 11.6 | 10.7 | 10.5 | 7.8 | 7.8 | 6.2 |
| Precipitation (mm) | 136 | 80 | 203 | 69 | 55 | 61 | 59 | 150 | 27 | 62 | 21 | 61 |
| Sunny days | 15 | 19 | 16 | 18 | 17 | 22 | 8 | 16 | 18 | 20 | 22 | 19 |
| Rainy days | 13 | 9 | 15 | 12 | 14 | 8 | 23 | 15 | 12 | 11 | 8 | 12 |
| Snow days | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit McLeansboro during the most sunny months:
The largest precipitation sum in McLeansboro is at