| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F |
| 2012 Hardiness Zone: | Zone 5b: -15°F to -10°F |
| 1990 Hardiness Zone: | Zone 5a: -20F to -15F |
| Average First Frost Date: | Oct. 11 - Oct. 20 |
| Average Last Frost Date: | Apr. 11 - Apr. 20 |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers |
| Ecoregion: | 40a - Loess Flats and Till Plains |
| Heat Zone Days: | 31 - 45 days Over 86°F |
Annual Climate Data for ZIP Code 64640 - Gallatin, MO | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 12 | 18 | 28 | 39 | 50 | 59 | 64 | 61 | 52 | 40 | 28 | 17 | 39 |
| Avg Max Temp (°F) | 34 | 40 | 53 | 64 | 74 | 84 | 89 | 87 | 79 | 67 | 51 | 38 | 63 |
| Avg Precip (In.) | 1.14 | 1.18 | 2.6 | 3.48 | 4.81 | 4.13 | 4.3 | 3.79 | 4.32 | 3.13 | 2.46 | 1.62 | 36.98 |