| 2023 Hardiness Zone: | Zone 7b: 5°F to 10°F Zone 7a: 0°F to 5°F |
| 2012 Hardiness Zone: | Zone 7a: 0°F to 5°F |
| 1990 Hardiness Zone: | Zone 6b: -5F to 0F |
| Average First Frost Date: | Oct. 21 - Oct. 31 |
| Average Last Frost Date: | Apr. 11 - Apr. 20 |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate |
| Ecoregion: | 39a - Springfield Plateau |
| Heat Zone Days: | 91 - 120 days Over 86°F |
Annual Climate Data for ZIP Code 74352 - Locust Grove, OK | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 25 | 29 | 38 | 47 | 57 | 65 | 70 | 68 | 61 | 49 | 38 | 29 | 48 |
| Avg Max Temp (°F) | 46 | 53 | 62 | 72 | 78 | 86 | 92 | 92 | 83 | 74 | 60 | 50 | 71 |
| Avg Precip (In.) | 2.03 | 2.18 | 3.89 | 4.19 | 5.24 | 4.9 | 3.16 | 3.22 | 5.01 | 3.97 | 4.41 | 2.9 | 45.09 |