| 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 |
| 1990 Hardiness Zone: | Zone 7a: 0F to 5F |
| Average First Frost Date: | Nov. 1 - Nov. 10 |
| Average Last Frost Date: | Apr. 1 - Apr. 10 |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate |
| Ecoregion: | 37c - Arkansas Valley Hills |
| Heat Zone Days: | 91 - 120 days Over 86°F |
Annual Climate Data for ZIP Code 72058 - Greenbrier, AR | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 25 | 29 | 38 | 46 | 56 | 64 | 68 | 66 | 59 | 47 | 37 | 29 | 47 |
| Avg Max Temp (°F) | 48 | 55 | 63 | 72 | 79 | 87 | 92 | 92 | 84 | 75 | 61 | 51 | 72 |
| Avg Precip (In.) | 3.15 | 3.37 | 4.81 | 4.93 | 4.94 | 4.24 | 3.01 | 2.5 | 3.81 | 4.12 | 5.42 | 4.53 | 48.83 |