Gracemont, Oklahoma has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 9.1 °C (low) to 22.6 °C (high). Annual precipitation averages 811.3 Millimeters. Gracemont 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 | -3.1 °C | 10.3 °C | 27.94 mm |
| February | -1.3 °C | 12.4 °C | 34.29 mm |
| March | 3.4 °C | 17.6 °C | 59.69 mm |
| April | 8 °C | 22.2 °C | 82.3 mm |
| May | 14.1 °C | 26.9 °C | 122.43 mm |
| June | 19.3 °C | 31.8 °C | 105.66 mm |
| July | 21.4 °C | 34.7 °C | 66.55 mm |
| August | 20.7 °C | 34.4 °C | 80.52 mm |
| September | 16.3 °C | 30 °C | 74.42 mm |
| October | 9.4 °C | 23.7 °C | 75.18 mm |
| November | 3.1 °C | 16.8 °C | 43.18 mm |
| December | -1.9 °C | 10.8 °C | 39.12 mm |
| Annual | 9.1 °C | 22.6 °C | 811.28 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 7a : -17.8°C to -15°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |