| 2023 Hardiness Zone: | Zone 7b: 5°F to 10°F |
| 2012 Hardiness Zone: | Zone 7a: 0°F to 5°F |
| 1990 Hardiness Zone: | Zone 7a: 0F to 5F |
| Average First Frost Date: | Oct. 21 - Oct. 31 |
| Average Last Frost Date: | Apr. 11 - Apr. 20 |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate |
| Ecoregion: | 65e - Northern Hilly Gulf Coastal Plain |
| Heat Zone Days: | 91 - 120 days Over 86°F |
Annual Climate Data for ZIP Code 38358 - Milan, TN | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 26 | 30 | 38 | 46 | 56 | 64 | 68 | 66 | 59 | 47 | 38 | 30 | 47 |
| Avg Max Temp (°F) | 45 | 51 | 61 | 70 | 79 | 86 | 90 | 89 | 83 | 72 | 60 | 49 | 70 |
| Avg Precip (In.) | 4.27 | 4.3 | 5.14 | 4.84 | 5.46 | 4.53 | 4.63 | 3.08 | 4.22 | 3.38 | 4.92 | 5.59 | 54.35 |