| 2023 Hardiness Zone: | Zone 6b: -5°F to 0°F Zone 7a: 0°F to 5°F |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F |
| 1990 Hardiness Zone: | Zone 6a: -10F to -5F |
| Average First Frost Date: | Oct. 21 - Oct. 31 |
| Average Last Frost Date: | Apr. 11 - Apr. 20 |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate |
| Ecoregion: | 71b - Mitchell Plain |
| Heat Zone Days: | 46 - 60 days Over 86°F |
Annual Climate Data for ZIP Code 47112 - Corydon, IN | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 22 | 25 | 34 | 43 | 52 | 61 | 65 | 63 | 56 | 44 | 35 | 26 | 44 |
| Avg Max Temp (°F) | 41 | 47 | 58 | 68 | 76 | 84 | 88 | 87 | 80 | 70 | 56 | 45 | 67 |
| Avg Precip (In.) | 3.27 | 3.23 | 4.37 | 4.35 | 4.93 | 4.09 | 4.36 | 3.67 | 3.25 | 2.95 | 3.93 | 3.83 | 46.22 |