| 2023 Hardiness Zone: | Zone 6b: -5°F to 0°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: | Dfa - Humid Continental Hot Summers |
| Ecoregion: | 72a - Wabash-Ohio Bottomlands |
| Heat Zone Days: | 31 - 45 days Over 86°F |
Annual Climate Data for ZIP Code 47591 - Vincennes, IN | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 19 | 23 | 33 | 43 | 53 | 62 | 66 | 64 | 56 | 44 | 35 | 25 | 44 |
| Avg Max Temp (°F) | 36 | 43 | 54 | 66 | 76 | 84 | 88 | 86 | 80 | 69 | 54 | 42 | 65 |
| Avg Precip (In.) | 2.73 | 2.67 | 4.11 | 4.26 | 5.11 | 4.11 | 4.33 | 3.66 | 3.1 | 3.1 | 4.21 | 3.41 | 44.81 |