| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 5b: -15°F to -10°F |
| 1990 Hardiness Zone: | Zone 1b: -15F to -10F |
| Average First Frost Date: | Oct. 21 - Oct. 31 |
| Average Last Frost Date: | Apr. 21 - Apr. 30 |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers |
| Ecoregion: | 55b - Loamy High Lime Till Plains |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 46143 - Greenwood, IN | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 17 | 20 | 30 | 40 | 51 | 60 | 64 | 62 | 54 | 41 | 33 | 23 | 41 |
| Avg Max Temp (°F) | 34 | 39 | 51 | 62 | 73 | 81 | 85 | 83 | 77 | 65 | 52 | 39 | 62 |
| Avg Precip (In.) | 2.34 | 2.33 | 3.29 | 3.9 | 4.56 | 4.08 | 4.51 | 3.85 | 2.85 | 2.86 | 3.64 | 2.95 | 41.15 |