| 2023 Hardiness Zone: | Zone 8a: 10°F to 15°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: | 73a - Northern Holocene Meander Belts |
| Heat Zone Days: | 91 - 120 days Over 86°F |
Annual Climate Data for ZIP Code 72370 - Osceola, AR | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 28 | 32 | 40 | 49 | 59 | 67 | 71 | 68 | 61 | 49 | 40 | 31 | 50 |
| Avg Max Temp (°F) | 45 | 51 | 60 | 70 | 80 | 88 | 91 | 90 | 83 | 73 | 60 | 49 | 70 |
| Avg Precip (In.) | 3.67 | 3.84 | 4.94 | 5.04 | 5.35 | 4.18 | 3.74 | 2.74 | 3.54 | 3.41 | 5.01 | 4.85 | 50.29 |