| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F 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 11 - May 20 |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers |
| Ecoregion: | 56b - Elkhart Till Plains |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 46746 - Howe, IN | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 14 | 16 | 26 | 36 | 48 | 57 | 61 | 59 | 51 | 40 | 31 | 21 | 38 |
| Avg Max Temp (°F) | 30 | 34 | 45 | 58 | 70 | 79 | 83 | 81 | 74 | 61 | 47 | 35 | 58 |
| Avg Precip (In.) | 1.84 | 1.74 | 2.66 | 3.37 | 3.65 | 4.06 | 3.64 | 3.95 | 3.47 | 2.8 | 2.9 | 2.62 | 36.71 |