Midwest City, Oklahoma has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 49.9 °F (low) to 71.6 °F (high). Annual precipitation averages 35.4 Inches. Midwest 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. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 27.5 °F | 49.5 °F | 1.29 in. |
| February | 31.1 °F | 53.8 °F | 1.55 in. |
| March | 39.4 °F | 62.7 °F | 2.62 in. |
| April | 48.4 °F | 71.3 °F | 3.45 in. |
| May | 58.9 °F | 78.9 °F | 5.18 in. |
| June | 67.9 °F | 87.3 °F | 4.51 in. |
| July | 72.1 °F | 92.9 °F | 3.49 in. |
| August | 70.7 °F | 92.3 °F | 3.06 in. |
| September | 62.7 °F | 84.5 °F | 3.56 in. |
| October | 50.6 °F | 73.5 °F | 3.07 in. |
| November | 39.1 °F | 61.2 °F | 1.82 in. |
| December | 30.3 °F | 51.0 °F | 1.79 in. |
| Annual | 49.9 °F | 71.6 °F | 35.39 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| 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 | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |