| 2023 Hardiness Zone: | Zone 7b: 5°F to 10°F |
| 2012 Hardiness Zone: | Zone 7b: 5°F to 10°F Zone 7a: 0°F to 5°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: | 73c - St. Francis Lowlands |
| Heat Zone Days: | 91 - 120 days Over 86°F |
Annual Climate Data for ZIP Code 63851 - Hayti, MO | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 27 | 31 | 39 | 48 | 58 | 67 | 71 | 68 | 60 | 48 | 40 | 31 | 49 |
| Avg Max Temp (°F) | 43 | 49 | 59 | 70 | 79 | 87 | 91 | 89 | 83 | 73 | 59 | 48 | 69 |
| Avg Precip (In.) | 3.43 | 3.73 | 4.77 | 4.96 | 4.96 | 4.49 | 3.85 | 2.93 | 3.15 | 3.49 | 4.89 | 4.69 | 49.35 |