| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F |
| 2012 Hardiness Zone: | Zone 5b: -15°F to -10°F |
| 1990 Hardiness Zone: | Zone 5a: -20F to -15F |
| Average First Frost Date: | Oct. 11 - Oct. 20 |
| Average Last Frost Date: | May 1 - May 10 |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers |
| Ecoregion: | 55b - Loamy High Lime Till Plains |
| Heat Zone Days: | 8 - 14 days Over 86°F |
Annual Climate Data for ZIP Code 46052 - Lebanon, IN | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 17 | 21 | 30 | 40 | 50 | 60 | 63 | 61 | 53 | 43 | 34 | 23 | 41 |
| Avg Max Temp (°F) | 34 | 40 | 51 | 64 | 74 | 83 | 86 | 84 | 78 | 66 | 52 | 39 | 63 |
| Avg Precip (In.) | 2.35 | 2.27 | 3.29 | 3.82 | 4.35 | 4.19 | 4.43 | 3.73 | 3 | 2.9 | 3.57 | 3 | 40.91 |