Ellettsville, Indiana has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 6.1 °C (low) to 17.5 °C (high). Annual precipitation averages 1246.7 Millimeters. 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 | -6.3 °C | 3 °C | 89.92 mm |
| February | -4.8 °C | 5.7 °C | 72.39 mm |
| March | -0.2 °C | 11.4 °C | 92.46 mm |
| April | 5.6 °C | 18.1 °C | 130.05 mm |
| May | 11.3 °C | 23.2 °C | 138.43 mm |
| June | 16.3 °C | 27.8 °C | 136.91 mm |
| July | 18.1 °C | 29.6 °C | 120.14 mm |
| August | 17 °C | 29.2 °C | 82.8 mm |
| September | 12.9 °C | 26 °C | 98.81 mm |
| October | 6.4 °C | 19.3 °C | 95 mm |
| November | 0.8 °C | 11.8 °C | 101.35 mm |
| December | -3.6 °C | 5.4 °C | 88.39 mm |
| Annual | 6.1 °C | 17.5 °C | 1246.65 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 |