| 2023 Hardiness Zone: | Zone 6b: -5°F to 0°F |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F |
| 1990 Hardiness Zone: | Zone 1b: -15F to -10F |
| 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: | 71b - Mitchell Plain |
| Heat Zone Days: | 46 - 60 days Over 86°F |
Annual Climate Data for ZIP Code 47167 - Salem, IN | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 21 | 24 | 33 | 42 | 51 | 60 | 64 | 63 | 55 | 44 | 35 | 26 | 43 |
| Avg Max Temp (°F) | 39 | 45 | 56 | 67 | 76 | 84 | 87 | 86 | 79 | 68 | 55 | 44 | 65 |
| Avg Precip (In.) | 3.31 | 3.14 | 4.29 | 4.52 | 4.87 | 4.02 | 4.42 | 3.94 | 3.07 | 2.92 | 3.93 | 3.62 | 46.07 |