| 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 6a: -10F to -5F |
| Average First Frost Date: | Oct. 21 - Oct. 31 |
| Average Last Frost Date: | Apr. 21 - Apr. 30 |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers |
| Ecoregion: | 39d - Central Plateau |
| Heat Zone Days: | 46 - 60 days Over 86°F |
Annual Climate Data for ZIP Code 65711 - Mountain Grove, MO | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 20 | 24 | 33 | 42 | 53 | 61 | 66 | 64 | 56 | 45 | 34 | 25 | 44 |
| Avg Max Temp (°F) | 40 | 46 | 56 | 66 | 74 | 82 | 88 | 87 | 79 | 69 | 55 | 44 | 65 |
| Avg Precip (In.) | 2.31 | 2.56 | 4.16 | 4.41 | 4.73 | 4.1 | 3.79 | 3.28 | 4.05 | 3.54 | 4.53 | 3.53 | 45 |