| 2023 Hardiness Zone: | Zone 7b: 5°F to 10°F Zone 7a: 0°F to 5°F |
| 2012 Hardiness Zone: | Zone 6b: -5°F to 0°F Zone 7a: 0°F to 5°F |
| 1990 Hardiness Zone: | Zone 6b: -5F to 0F |
| 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: | 71g - Eastern Highland Rim |
| Heat Zone Days: | 61 - 90 days Over 86°F |
Annual Climate Data for ZIP Code 38583 - Sparta, TN | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 27 | 30 | 37 | 43 | 52 | 61 | 65 | 63 | 57 | 44 | 37 | 31 | 46 |
| Avg Max Temp (°F) | 48 | 53 | 62 | 71 | 78 | 85 | 88 | 88 | 82 | 72 | 61 | 52 | 70 |
| Avg Precip (In.) | 5.25 | 4.26 | 5.99 | 4.3 | 5.65 | 4.73 | 4.69 | 3.94 | 3.86 | 3.45 | 5 | 5.69 | 56.8 |