Ellettsville, Indiana has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 43 °F (low) to 63.6 °F (high). Annual precipitation averages 49.1 Inches. Ellettsville 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 | 20.7 °F | 37.4 °F | 3.54 in. |
| February | 23.4 °F | 42.3 °F | 2.85 in. |
| March | 31.7 °F | 52.6 °F | 3.64 in. |
| April | 42.0 °F | 64.6 °F | 5.12 in. |
| May | 52.4 °F | 73.8 °F | 5.45 in. |
| June | 61.3 °F | 82.0 °F | 5.39 in. |
| July | 64.5 °F | 85.3 °F | 4.73 in. |
| August | 62.6 °F | 84.6 °F | 3.26 in. |
| September | 55.2 °F | 78.8 °F | 3.89 in. |
| October | 43.5 °F | 66.8 °F | 3.74 in. |
| November | 33.4 °F | 53.3 °F | 3.99 in. |
| December | 25.6 °F | 41.7 °F | 3.48 in. |
| Annual | 43 °F | 63.6 °F | 49.08 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 6a : -10°F to -5°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |