Floraville, Illinois has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 46.9 °F (low) to 66.6 °F (high). Annual precipitation averages 44.2 Inches. Floraville is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 23.4 °F | 40.4 °F | 2.76 in. |
| February | 27.0 °F | 45.7 °F | 2.47 in. |
| March | 35.5 °F | 55.7 °F | 3.6 in. |
| April | 46.1 °F | 67.7 °F | 4.97 in. |
| May | 56.8 °F | 76.6 °F | 5.09 in. |
| June | 65.5 °F | 85.5 °F | 4.72 in. |
| July | 69.4 °F | 88.8 °F | 4.1 in. |
| August | 67.2 °F | 87.5 °F | 3.37 in. |
| September | 59.2 °F | 81.0 °F | 3.3 in. |
| October | 47.8 °F | 69.5 °F | 3.17 in. |
| November | 36.6 °F | 55.6 °F | 3.7 in. |
| December | 27.9 °F | 44.6 °F | 2.95 in. |
| Annual | 46.9 °F | 66.6 °F | 44.2 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |