Granite, Oklahoma has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 48.3 °F (low) to 74.1 °F (high). Annual precipitation averages 28.1 Inches. Granite is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 26.2 °F | 51.9 °F | 0.97 in. |
| February | 29.5 °F | 55.6 °F | 1.1 in. |
| March | 37.9 °F | 65.0 °F | 1.86 in. |
| April | 46.0 °F | 73.6 °F | 2.78 in. |
| May | 57.2 °F | 82.4 °F | 4.25 in. |
| June | 66.9 °F | 91.2 °F | 3.6 in. |
| July | 70.7 °F | 95.9 °F | 2.41 in. |
| August | 69.5 °F | 95.0 °F | 3.12 in. |
| September | 61.8 °F | 87.0 °F | 2.75 in. |
| October | 49.2 °F | 75.7 °F | 2.6 in. |
| November | 37.1 °F | 62.9 °F | 1.5 in. |
| December | 28.0 °F | 52.4 °F | 1.19 in. |
| Annual | 48.3 °F | 74.1 °F | 28.13 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7b : 5°F to 10°F |
| Plant Hardiness Zone - 2012 | Zone 7a : 0°F to 5°F |
| Current Drought Conditions | Exceptional Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |