Mustang, Oklahoma has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 9.6 °C (low) to 21.9 °C (high). Annual precipitation averages 887.5 Millimeters. Mustang 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 | -2.8 °C | 9.4 °C | 30.99 mm |
| February | -1 °C | 11.7 °C | 37.85 mm |
| March | 3.7 °C | 16.8 °C | 64.52 mm |
| April | 8.4 °C | 21.4 °C | 90.42 mm |
| May | 14.4 °C | 26.1 °C | 132.08 mm |
| June | 19.5 °C | 30.9 °C | 117.6 mm |
| July | 22.1 °C | 33.9 °C | 83.06 mm |
| August | 21.2 °C | 33.6 °C | 80.26 mm |
| September | 16.8 °C | 29.2 °C | 84.84 mm |
| October | 10.1 °C | 22.9 °C | 79.25 mm |
| November | 3.6 °C | 16.1 °C | 42.93 mm |
| December | -1.2 °C | 10.4 °C | 43.69 mm |
| Annual | 9.6 °C | 21.9 °C | 887.49 mm |
| 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 : -15°C to -12.2°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 |