Headrick, Oklahoma has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 49.8 °F (low) to 75 °F (high). Annual precipitation averages 28.6 Inches. Headrick is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 27.6 °F | 53.0 °F | 0.96 in. |
| February | 31.2 °F | 56.7 °F | 1.24 in. |
| March | 39.5 °F | 66.2 °F | 1.99 in. |
| April | 47.3 °F | 74.6 °F | 2.93 in. |
| May | 58.7 °F | 83.6 °F | 4.21 in. |
| June | 68.4 °F | 92.3 °F | 3.68 in. |
| July | 72.0 °F | 96.5 °F | 2.53 in. |
| August | 70.7 °F | 95.5 °F | 2.88 in. |
| September | 63.0 °F | 87.5 °F | 2.78 in. |
| October | 50.7 °F | 76.8 °F | 2.65 in. |
| November | 38.6 °F | 64.0 °F | 1.44 in. |
| December | 29.6 °F | 53.7 °F | 1.3 in. |
| Annual | 49.8 °F | 75 °F | 28.59 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 7b : 5°F to 10°F |
| Plant Hardiness Zone - 2012 | Zone 7b : 5°F to 10°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |