| 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: | 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 38301 - Jackson, TN | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 28 | 32 | 40 | 48 | 57 | 66 | 69 | 67 | 60 | 48 | 39 | 31 | 49 |
| Avg Max Temp (°F) | 47 | 52 | 62 | 71 | 79 | 87 | 90 | 89 | 83 | 73 | 61 | 50 | 70 |
| Avg Precip (In.) | 4.28 | 4.21 | 5.26 | 4.93 | 5.69 | 4.86 | 4.63 | 2.93 | 3.86 | 3.39 | 5.06 | 5.36 | 54.46 |