Hitchcock, Oklahoma has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 8.5 °C (low) to 22.3 °C (high). Annual precipitation averages 793.8 Millimeters. Hitchcock 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 | -3.9 °C | 9.3 °C | 24.38 mm |
| February | -2.3 °C | 11.4 °C | 33.02 mm |
| March | 2.5 °C | 16.8 °C | 58.42 mm |
| April | 7.2 °C | 21.8 °C | 77.47 mm |
| May | 13.3 °C | 26.8 °C | 107.44 mm |
| June | 18.9 °C | 32.2 °C | 104.65 mm |
| July | 21.4 °C | 35.2 °C | 71.88 mm |
| August | 20.5 °C | 34.4 °C | 90.68 mm |
| September | 16.1 °C | 30.1 °C | 69.09 mm |
| October | 9.2 °C | 23.2 °C | 75.95 mm |
| November | 2.4 °C | 15.9 °C | 43.94 mm |
| December | -2.8 °C | 9.9 °C | 36.83 mm |
| Annual | 8.5 °C | 22.3 °C | 793.75 mm |
| 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 : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 7a : -17.8°C to -15°C |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |