Boody, Illinois has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 6.3 °C (low) to 17.4 °C (high). Annual precipitation averages 1004.1 Millimeters. Boody is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -6.8 °C | 1.9 °C | 58.17 mm |
| February | -5.4 °C | 4.8 °C | 51.05 mm |
| March | -0.3 °C | 10.8 °C | 69.6 mm |
| April | 5.9 °C | 18 °C | 106.93 mm |
| May | 12.3 °C | 23.6 °C | 117.86 mm |
| June | 16.8 °C | 28.6 °C | 119.89 mm |
| July | 18.6 °C | 30.1 °C | 94.23 mm |
| August | 17.7 °C | 29.3 °C | 82.8 mm |
| September | 12.9 °C | 26.5 °C | 80.26 mm |
| October | 6.5 °C | 19.6 °C | 82.8 mm |
| November | 0.5 °C | 11.2 °C | 80.01 mm |
| December | -3.7 °C | 4.6 °C | 60.45 mm |
| Annual | 6.3 °C | 17.4 °C | 1004.05 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6a : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |