| 2023 Hardiness Zone: | Zone 7b: 5°F to 10°F |
| 2012 Hardiness Zone: | Zone 6b: -5°F to 0°F Zone 7a: 0°F to 5°F |
| 1990 Hardiness Zone: | Zone 6b: -5F to 0F |
| Average First Frost Date: | Oct. 11 - Oct. 20 |
| Average Last Frost Date: | May 11 - May 20 |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate |
| Ecoregion: | 38b - Lower Boston Mountains |
| Heat Zone Days: | 61 - 90 days Over 86°F |
Annual Climate Data for ZIP Code 72679 - Tilly, AR | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 23 | 28 | 35 | 43 | 52 | 60 | 65 | 64 | 57 | 46 | 36 | 27 | 45 |
| Avg Max Temp (°F) | 44 | 52 | 60 | 69 | 76 | 84 | 89 | 88 | 81 | 71 | 58 | 48 | 68 |
| Avg Precip (In.) | 3.25 | 3.83 | 5.35 | 4.69 | 5.81 | 4.66 | 3.63 | 3.26 | 4.18 | 4.8 | 5.92 | 5.01 | 54.39 |