Flora, Indiana has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 41.9 °F (low) to 61.3 °F (high). Annual precipitation averages 41.2 Inches. Flora 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 | 18.4 °F | 33.6 °F | 2.64 in. |
| February | 21.1 °F | 37.5 °F | 2.17 in. |
| March | 30.1 °F | 49.1 °F | 2.88 in. |
| April | 40.4 °F | 62.1 °F | 3.89 in. |
| May | 51.5 °F | 72.9 °F | 4.36 in. |
| June | 60.8 °F | 81.4 °F | 5.07 in. |
| July | 63.7 °F | 84.1 °F | 4.69 in. |
| August | 61.7 °F | 82.7 °F | 3.74 in. |
| September | 54.2 °F | 77.8 °F | 3.07 in. |
| October | 43.0 °F | 65.2 °F | 3.07 in. |
| November | 33.2 °F | 50.6 °F | 3.19 in. |
| December | 24.2 °F | 38.6 °F | 2.44 in. |
| Annual | 41.9 °F | 61.3 °F | 41.21 in. |
| 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 : -10°F to -5°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 |