| 2023 Hardiness Zone: | Zone 6b: -5°F to 0°F Zone 7a: 0°F to 5°F |
| 2012 Hardiness Zone: | Zone 6b: -5°F to 0°F |
| 1990 Hardiness Zone: | Zone 6b: -5F to 0F |
| Average First Frost Date: | Oct. 21 - Oct. 31 |
| 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 65653 - Forsyth, MO | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 20 | 24 | 33 | 41 | 51 | 60 | 64 | 62 | 55 | 43 | 34 | 25 | 43 |
| Avg Max Temp (°F) | 44 | 50 | 59 | 69 | 77 | 85 | 90 | 90 | 82 | 72 | 58 | 47 | 69 |
| Avg Precip (In.) | 2.29 | 2.45 | 3.97 | 4.03 | 4.35 | 4.58 | 3.58 | 3.11 | 4.2 | 3.04 | 4.64 | 3.19 | 43.42 |