| 2023 Hardiness Zone: | Zone 8b: 15°F to 20°F Zone 9a: 20°F to 25°F |
| 2012 Hardiness Zone: | Zone 8a: 10°F to 15°F |
| 1990 Hardiness Zone: | Zone 8a: 10F to 15F |
| Average First Frost Date: | Nov. 11 - Nov. 20 |
| Average Last Frost Date: | Mar. 21 - Mar. 31 |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate |
| Ecoregion: | 65f - Southern Pine Plains and Hills |
| Heat Zone Days: | 121 - 150 days Over 86°F |
Annual Climate Data for ZIP Code 36467 - Opp, AL | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 36 | 38 | 45 | 50 | 59 | 66 | 69 | 69 | 64 | 52 | 44 | 38 | 52 |
| Avg Max Temp (°F) | 59 | 63 | 71 | 77 | 84 | 89 | 91 | 91 | 87 | 78 | 69 | 61 | 77 |
| Avg Precip (In.) | 5.83 | 5.27 | 6.97 | 4.28 | 4.56 | 5.12 | 6.11 | 4.46 | 4.46 | 2.96 | 4.73 | 4.66 | 59.4 |