Oklahoma City, Oklahoma has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 49.8 °F (low) to 71.7 °F (high). Annual precipitation averages 34.7 Inches. Oklahoma City 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 | 27.3 °F | 49.5 °F | 1.29 in. |
| February | 31.0 °F | 53.7 °F | 1.5 in. |
| March | 39.5 °F | 62.9 °F | 2.54 in. |
| April | 48.3 °F | 71.3 °F | 3.38 in. |
| May | 58.9 °F | 79.1 °F | 5.17 in. |
| June | 67.8 °F | 87.5 °F | 4.54 in. |
| July | 72.1 °F | 93.0 °F | 3.37 in. |
| August | 70.6 °F | 92.4 °F | 3.02 in. |
| September | 62.6 °F | 84.6 °F | 3.41 in. |
| October | 50.4 °F | 73.5 °F | 3.02 in. |
| November | 38.9 °F | 61.2 °F | 1.74 in. |
| December | 30.1 °F | 51.1 °F | 1.73 in. |
| Annual | 49.8 °F | 71.7 °F | 34.71 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 7b : 5°F to 10°F |
| Plant Hardiness Zone - 2012 | Zone 7a : 0°F to 5°F |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |