| 2023 Hardiness Zone: | Zone 8a: 10°F to 15°F 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: | Nov. 1 - Nov. 10 |
| Average Last Frost Date: | Mar. 21 - Mar. 31 |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate |
| Ecoregion: | 74b - Loess Plains |
| Heat Zone Days: | 61 - 90 days Over 86°F |
Annual Climate Data for ZIP Code 38040 - Halls, TN | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 28 | 32 | 40 | 49 | 58 | 66 | 70 | 68 | 61 | 49 | 40 | 32 | 50 |
| Avg Max Temp (°F) | 45 | 51 | 61 | 71 | 79 | 87 | 91 | 89 | 83 | 73 | 60 | 49 | 70 |
| Avg Precip (In.) | 3.85 | 4.08 | 5.04 | 4.97 | 5.09 | 4.46 | 4.22 | 2.82 | 3.43 | 3.44 | 5.13 | 5.3 | 51.82 |