| 2023 Hardiness Zone: | Zone 7a: 0°F to 5°F |
| 2012 Hardiness Zone: | Zone 6b: -5°F to 0°F |
| 1990 Hardiness Zone: | Zone 6a: -10F to -5F |
| Average First Frost Date: | Oct. 11 - Oct. 20 |
| Average Last Frost Date: | Apr. 21 - Apr. 30 |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate |
| Ecoregion: | 39c - White River Hills |
| Heat Zone Days: | 61 - 90 days Over 86°F |
Annual Climate Data for ZIP Code 65747 - Shell Knob, MO | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 21 | 25 | 34 | 43 | 52 | 61 | 65 | 63 | 56 | 44 | 34 | 25 | 44 |
| Avg Max Temp (°F) | 43 | 50 | 59 | 69 | 76 | 84 | 89 | 89 | 80 | 71 | 57 | 47 | 68 |
| Avg Precip (In.) | 2.16 | 2.44 | 4.17 | 4.33 | 4.8 | 4.88 | 3.51 | 3.3 | 4.46 | 3.38 | 4.59 | 3.34 | 45.36 |