Elk City, Oklahoma has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 8.5 °C (low) to 22.4 °C (high). Annual precipitation averages 717.8 Millimeters. Elk 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 | -3.4 °C | 10.1 °C | 23.62 mm |
| February | -1.9 °C | 12.1 °C | 27.94 mm |
| March | 2.6 °C | 17.3 °C | 52.58 mm |
| April | 7.3 °C | 22 °C | 68.07 mm |
| May | 13.2 °C | 26.8 °C | 106.68 mm |
| June | 18.6 °C | 31.8 °C | 90.42 mm |
| July | 20.9 °C | 34.7 °C | 55.12 mm |
| August | 20.2 °C | 34.3 °C | 88.14 mm |
| September | 16 °C | 29.8 °C | 69.34 mm |
| October | 8.9 °C | 23.2 °C | 66.04 mm |
| November | 2.4 °C | 16.3 °C | 37.08 mm |
| December | -2.4 °C | 10.4 °C | 32.77 mm |
| Annual | 8.5 °C | 22.4 °C | 717.8 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 |