| 2023 Hardiness Zone: | 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 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 1 - May 10 |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate |
| Ecoregion: | 39a - Springfield Plateau |
| Heat Zone Days: | 61 - 90 days Over 86°F |
Annual Climate Data for ZIP Code 72650 - Marshall, AR | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 25 | 29 | 38 | 46 | 55 | 63 | 68 | 66 | 59 | 47 | 38 | 29 | 47 |
| Avg Max Temp (°F) | 45 | 52 | 60 | 70 | 77 | 85 | 90 | 89 | 82 | 72 | 59 | 49 | 69 |
| Avg Precip (In.) | 2.5 | 3.02 | 4.73 | 4.2 | 5.06 | 3.63 | 2.66 | 2.53 | 3.9 | 3.53 | 5.01 | 3.94 | 44.7 |