Braceville, Illinois has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 40.5 °F (low) to 60.4 °F (high). Annual precipitation averages 37.9 Inches. Braceville is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 15.9 °F | 31.6 °F | 2.09 in. |
| February | 18.8 °F | 35.7 °F | 1.85 in. |
| March | 28.3 °F | 47.8 °F | 2.38 in. |
| April | 38.8 °F | 60.9 °F | 3.64 in. |
| May | 50.1 °F | 72.1 °F | 4.7 in. |
| June | 60.1 °F | 81.3 °F | 4.55 in. |
| July | 63.6 °F | 84.4 °F | 4.04 in. |
| August | 61.7 °F | 82.6 °F | 3.78 in. |
| September | 53.8 °F | 77.4 °F | 3.31 in. |
| October | 42.1 °F | 64.2 °F | 3.05 in. |
| November | 31.4 °F | 49.4 °F | 2.47 in. |
| December | 21.6 °F | 36.8 °F | 2.07 in. |
| Annual | 40.5 °F | 60.4 °F | 37.93 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 5b : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |