| 2023 Hardiness Zone: | Zone 7b: 5°F to 10°F Zone 7a: 0°F to 5°F |
| 2012 Hardiness Zone: | 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: | 71e - Western Pennyroyal Karst Plain |
| Heat Zone Days: | 91 - 120 days Over 86°F |
Annual Climate Data for ZIP Code 42223 - Fort Campbell, TN | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 25 | 28 | 36 | 45 | 54 | 63 | 67 | 65 | 58 | 45 | 37 | 28 | 46 |
| Avg Max Temp (°F) | 44 | 50 | 60 | 70 | 78 | 85 | 89 | 88 | 82 | 71 | 59 | 48 | 69 |
| Avg Precip (In.) | 4.05 | 4.22 | 5.28 | 4.34 | 5.09 | 4.19 | 4.21 | 3.33 | 3.66 | 3.24 | 4.69 | 5.08 | 51.38 |