| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 5b: -15°F to -10°F | |
| 2012 Hardiness Zone: | Zone 5b: -15°F to -10°F | |
| 1990 Hardiness Zone: | Zone 5a: -20F to -15F | |
| Average First Frost Date: | October 1 - 10 | |
| Average Last Frost Date: | May 1 - 10 | |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers | |
| Ecoregion: | 54a - Illinois/Indiana Prairies | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 1 - 7 days Over 86°F |
Annual Climate Data for ZIP Code 46341 - Hebron, IN | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 13 | 18 | 28 | 37 | 48 | 58 | 62 | 60 | 52 | 41 | 31 | 20 | 39 |
| Avg Max Temp (°F) | 30 | 36 | 47 | 59 | 71 | 80 | 84 | 81 | 76 | 64 | 49 | 36 | 59 |
| Avg Precip (In.) | 1.78 | 1.57 | 2.8 | 3.76 | 3.94 | 4.52 | 3.93 | 3.79 | 3.46 | 2.83 | 3.22 | 2.68 | 38.29 |