| 2023 Hardiness Zone: | Zone 8a: 10°F to 15°F |
| 2012 Hardiness Zone: | Zone 8a: 10°F to 15°F Zone 7b: 5°F to 10°F |
| 1990 Hardiness Zone: | Zone 7b: 5F to 10F |
| 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: | 37d - Arkansas Valley Plains |
| Heat Zone Days: | 91 - 120 days Over 86°F |
Annual Climate Data for ZIP Code 72110 - Morrilton, AR | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 27 | 31 | 39 | 47 | 57 | 65 | 69 | 66 | 60 | 48 | 38 | 30 | 48 |
| Avg Max Temp (°F) | 48 | 55 | 64 | 72 | 80 | 88 | 93 | 92 | 85 | 75 | 61 | 51 | 72 |
| Avg Precip (In.) | 3.28 | 3.34 | 4.55 | 4.44 | 5.27 | 4.49 | 2.86 | 2.5 | 3.38 | 4.28 | 5.62 | 4.62 | 48.62 |