| 2023 Hardiness Zone: | Zone 7b: 5°F to 10°F |
| 2012 Hardiness Zone: | Zone 7b: 5°F to 10°F 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 38375 - Selmer, TN | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 27 | 31 | 39 | 46 | 56 | 64 | 68 | 66 | 59 | 46 | 38 | 31 | 48 |
| Avg Max Temp (°F) | 48 | 53 | 63 | 72 | 79 | 87 | 90 | 90 | 84 | 74 | 62 | 51 | 71 |
| Avg Precip (In.) | 4.97 | 4.45 | 5.91 | 5.21 | 6.06 | 4.38 | 4.58 | 2.83 | 4.25 | 3.35 | 5.64 | 5.78 | 57.41 |