Grove, Oklahoma has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 47.6 °F (low) to 70.3 °F (high). Annual precipitation averages 47.9 Inches. Grove is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 25.3 °F | 47.0 °F | 2.53 in. |
| February | 28.7 °F | 51.6 °F | 2.36 in. |
| March | 37.3 °F | 60.9 °F | 3.86 in. |
| April | 46.3 °F | 70.4 °F | 4.88 in. |
| May | 56.5 °F | 78.0 °F | 6.3 in. |
| June | 65.7 °F | 86.4 °F | 4.98 in. |
| July | 69.8 °F | 91.5 °F | 4.18 in. |
| August | 68.0 °F | 91.3 °F | 3.69 in. |
| September | 60.0 °F | 83.6 °F | 4.65 in. |
| October | 47.9 °F | 72.5 °F | 4.19 in. |
| November | 37.3 °F | 60.4 °F | 3.4 in. |
| December | 28.7 °F | 49.8 °F | 2.84 in. |
| Annual | 47.6 °F | 70.3 °F | 47.86 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |