Dill City, Oklahoma has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 9.1 °C (low) to 22.5 °C (high). Annual precipitation averages 720.3 Millimeters. Dill City 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 Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -3.1 °C | 9.9 °C | 25.4 mm |
| February | -1.6 °C | 11.9 °C | 29.21 mm |
| March | 3.1 °C | 17.1 °C | 54.36 mm |
| April | 7.7 °C | 21.8 °C | 74.17 mm |
| May | 13.7 °C | 26.8 °C | 100.08 mm |
| June | 19.1 °C | 32.2 °C | 89.41 mm |
| July | 21.5 °C | 35.1 °C | 55.37 mm |
| August | 20.8 °C | 34.6 °C | 84.07 mm |
| September | 16.6 °C | 30.1 °C | 64.26 mm |
| October | 9.6 °C | 23.3 °C | 71.88 mm |
| November | 3.1 °C | 16.2 °C | 38.86 mm |
| December | -1.9 °C | 10.4 °C | 33.27 mm |
| Annual | 9.1 °C | 22.5 °C | 720.34 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 7b : -15°C to -12.2°C |
| Plant Hardiness Zone - 2012 | Zone 7a : -17.8°C to -15°C |
| Current Drought Conditions | Exceptional Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |