| 2023 Hardiness Zone: | Zone 6b: -5°F to 0°F Zone 7a: 0°F to 5°F | |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F | |
| 1990 Hardiness Zone: | Zone 1b: -15F to -10F | |
| 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: | 39d - Central Plateau | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 61 - 90 days Over 86°F |
Annual Climate Data for ZIP Code 65536 - Lebanon, MO | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 21 | 26 | 35 | 44 | 53 | 62 | 67 | 65 | 57 | 46 | 35 | 25 | 45 |
| Avg Max Temp (°F) | 41 | 48 | 58 | 68 | 76 | 84 | 89 | 89 | 80 | 70 | 55 | 45 | 67 |
| Avg Precip (In.) | 1.87 | 2.2 | 3.6 | 4.34 | 4.55 | 4.15 | 3.78 | 3.31 | 4.1 | 3.77 | 4.3 | 2.56 | 42.52 |