Mountain Park, Oklahoma has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 9.9 °C (low) to 23.7 °C (high). Annual precipitation averages 756.2 Millimeters. Mountain Park 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 | -2.4 °C | 11.4 °C | 25.15 mm |
| February | -0.4 °C | 13.6 °C | 30.73 mm |
| March | 4.2 °C | 18.7 °C | 52.83 mm |
| April | 8.5 °C | 23.4 °C | 70.1 mm |
| May | 14.8 °C | 28.3 °C | 111.51 mm |
| June | 20.2 °C | 33.2 °C | 97.03 mm |
| July | 22.2 °C | 35.8 °C | 66.55 mm |
| August | 21.6 °C | 35.3 °C | 74.93 mm |
| September | 17.3 °C | 30.8 °C | 73.91 mm |
| October | 10.4 °C | 24.7 °C | 73.66 mm |
| November | 3.8 °C | 17.6 °C | 42.93 mm |
| December | -1.3 °C | 11.8 °C | 36.83 mm |
| Annual | 9.9 °C | 23.7 °C | 756.16 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7b : -15°C to -12.2°C |
| Plant Hardiness Zone - 2012 | Zone 7b : -15°C to -12.2°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |