Hopeton, Oklahoma has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 7.6 °C (low) to 22.1 °C (high). Annual precipitation averages 746.8 Millimeters. Hopeton 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 | -5.3 °C | 8.9 °C | 22.35 mm |
| February | -3.7 °C | 10.9 °C | 25.4 mm |
| March | 1.4 °C | 16.6 °C | 56.9 mm |
| April | 6.2 °C | 21.4 °C | 68.07 mm |
| May | 12.6 °C | 26.7 °C | 110.24 mm |
| June | 18.4 °C | 32.4 °C | 108.71 mm |
| July | 20.9 °C | 35.2 °C | 81.28 mm |
| August | 20.1 °C | 34.3 °C | 89.15 mm |
| September | 15.4 °C | 30.1 °C | 52.07 mm |
| October | 7.9 °C | 23.2 °C | 69.09 mm |
| November | 1.1 °C | 15.7 °C | 32.51 mm |
| December | -4.2 °C | 9.3 °C | 30.99 mm |
| Annual | 7.6 °C | 22.1 °C | 746.76 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |