Ardmore, Oklahoma has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 51.3 °F (low) to 74.1 °F (high). Annual precipitation averages 38.5 Inches. Ardmore is located in USDA Plant Hardiness Zone 8a. 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 | 30.1 °F | 52.9 °F | 1.83 in. |
| February | 33.7 °F | 57.0 °F | 2.25 in. |
| March | 41.9 °F | 65.4 °F | 2.93 in. |
| April | 49.7 °F | 73.5 °F | 3.31 in. |
| May | 59.6 °F | 80.5 °F | 5.57 in. |
| June | 68.5 °F | 88.8 °F | 4.37 in. |
| July | 72.2 °F | 94.0 °F | 2.6 in. |
| August | 71.2 °F | 94.5 °F | 2.67 in. |
| September | 63.7 °F | 86.9 °F | 4.02 in. |
| October | 51.7 °F | 76.2 °F | 4.0 in. |
| November | 41.1 °F | 64.7 °F | 2.37 in. |
| December | 32.2 °F | 54.6 °F | 2.55 in. |
| Annual | 51.3 °F | 74.1 °F | 38.47 in. |
| 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 8a : 10°F to 15°F |
| Plant Hardiness Zone - 2012 | Zone 7b : 5°F to 10°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |