| 2023 Hardiness Zone: | 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: | Oct. 11 - Oct. 20 |
| Average Last Frost Date: | May 1 - May 10 |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers |
| Ecoregion: | 54d - Sand Area |
| Heat Zone Days: | 8 - 14 days Over 86°F |
Annual Climate Data for ZIP Code 46392 - Wheatfield, IN | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 13 | 17 | 27 | 37 | 48 | 58 | 62 | 59 | 51 | 40 | 31 | 20 | 39 |
| Avg Max Temp (°F) | 30 | 36 | 47 | 60 | 71 | 80 | 84 | 82 | 76 | 64 | 49 | 36 | 60 |
| Avg Precip (In.) | 1.7 | 1.46 | 2.73 | 3.68 | 3.83 | 4.53 | 4.05 | 3.73 | 3.43 | 2.67 | 2.98 | 2.67 | 37.44 |