| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F |
| 1990 Hardiness Zone: | Zone 1b: -15F to -10F |
| Average First Frost Date: | Oct. 11 - Oct. 20 |
| Average Last Frost Date: | Apr. 21 - Apr. 30 |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers |
| Ecoregion: | 72b - Glaciated Wabash Lowlands |
| Heat Zone Days: | 15 - 30 days Over 86°F |
Annual Climate Data for ZIP Code 47803 - Terre Haute, IN | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 18 | 22 | 32 | 41 | 51 | 61 | 65 | 63 | 55 | 43 | 34 | 24 | 42 |
| Avg Max Temp (°F) | 35 | 41 | 52 | 64 | 75 | 84 | 87 | 85 | 79 | 67 | 53 | 41 | 64 |
| Avg Precip (In.) | 2.23 | 2.49 | 3.62 | 4.09 | 4.58 | 4.11 | 4.52 | 3.79 | 3.32 | 2.97 | 3.86 | 3.04 | 42.61 |