Coweta, Oklahoma has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 49 °F (low) to 71.4 °F (high). Annual precipitation averages 43 Inches. Coweta 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 | 26.7 °F | 48.7 °F | 1.96 in. |
| February | 29.9 °F | 53.1 °F | 2.03 in. |
| March | 38.8 °F | 62.3 °F | 3.43 in. |
| April | 47.8 °F | 71.3 °F | 4.44 in. |
| May | 58.3 °F | 78.6 °F | 5.98 in. |
| June | 67.3 °F | 87.2 °F | 4.56 in. |
| July | 71.2 °F | 92.2 °F | 3.67 in. |
| August | 69.6 °F | 92.3 °F | 3.34 in. |
| September | 61.5 °F | 84.7 °F | 4.04 in. |
| October | 49.3 °F | 73.5 °F | 3.91 in. |
| November | 38.4 °F | 61.7 °F | 3.14 in. |
| December | 29.7 °F | 50.8 °F | 2.49 in. |
| Annual | 49 °F | 71.4 °F | 42.99 in. |
| 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 : 5°F to 10°F |
| Plant Hardiness Zone - 2012 | Zone 7a : 0°F to 5°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |