| 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 6a: -10F 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: | 71g - Eastern Highland Rim |
| Heat Zone Days: | 46 - 60 days Over 86°F |
Annual Climate Data for ZIP Code 38506 - Cookeville, TN | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 26 | 28 | 36 | 43 | 52 | 61 | 65 | 63 | 56 | 44 | 36 | 29 | 45 |
| Avg Max Temp (°F) | 45 | 50 | 59 | 69 | 76 | 84 | 87 | 87 | 81 | 71 | 59 | 50 | 68 |
| Avg Precip (In.) | 5.34 | 4.4 | 5.93 | 4.52 | 5.64 | 4.58 | 5.01 | 4.27 | 4.12 | 3.47 | 4.93 | 5.67 | 57.88 |