| 2023 Hardiness Zone: | Zone 8a: 10°F to 15°F Zone 7b: 5°F to 10°F Zone 7a: 0°F to 5°F |
| 2012 Hardiness Zone: | Zone 6b: -5°F to 0°F 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: | Nov. 1 - Nov. 10 |
| Average Last Frost Date: | Apr. 11 - Apr. 20 |
| 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 72830 - Clarksville, AR | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 25 | 29 | 37 | 45 | 55 | 64 | 69 | 67 | 60 | 47 | 37 | 28 | 47 |
| Avg Max Temp (°F) | 48 | 55 | 63 | 72 | 79 | 87 | 93 | 92 | 85 | 74 | 61 | 51 | 72 |
| Avg Precip (In.) | 2.76 | 2.99 | 4.49 | 4.41 | 5.21 | 4.2 | 2.95 | 2.58 | 3.84 | 4.1 | 5.09 | 4.38 | 47 |