Elmore City, Oklahoma has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 9.8 °C (low) to 23.2 °C (high). Annual precipitation averages 940.8 Millimeters. Elmore 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 Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -2.3 °C | 11.2 °C | 39.37 mm |
| February | -0.2 °C | 13.5 °C | 50.29 mm |
| March | 4.6 °C | 18.4 °C | 69.85 mm |
| April | 8.9 °C | 22.9 °C | 90.93 mm |
| May | 14.7 °C | 26.9 °C | 141.73 mm |
| June | 19.7 °C | 31.6 °C | 120.4 mm |
| July | 21.8 °C | 34.6 °C | 70.87 mm |
| August | 21 °C | 34.7 °C | 68.07 mm |
| September | 16.7 °C | 30.4 °C | 96.52 mm |
| October | 9.9 °C | 24.3 °C | 84.58 mm |
| November | 3.9 °C | 17.8 °C | 56.9 mm |
| December | -1.1 °C | 12 °C | 51.31 mm |
| Annual | 9.8 °C | 23.2 °C | 940.82 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 50-75 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 | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |