Lawton, Oklahoma has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 49.9 °F (low) to 74.5 °F (high). Annual precipitation averages 30.8 Inches. Lawton 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 | 27.8 °F | 52.8 °F | 1.18 in. |
| February | 31.4 °F | 56.6 °F | 1.54 in. |
| March | 40.1 °F | 65.7 °F | 2.32 in. |
| April | 48.2 °F | 73.7 °F | 2.95 in. |
| May | 58.8 °F | 82.0 °F | 4.41 in. |
| June | 67.9 °F | 90.7 °F | 3.8 in. |
| July | 71.7 °F | 96.1 °F | 2.42 in. |
| August | 70.8 °F | 95.6 °F | 2.72 in. |
| September | 62.8 °F | 87.2 °F | 2.86 in. |
| October | 50.5 °F | 76.2 °F | 3.13 in. |
| November | 39.0 °F | 63.9 °F | 1.68 in. |
| December | 29.7 °F | 53.8 °F | 1.8 in. |
| Annual | 49.9 °F | 74.5 °F | 30.81 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 7b : 5°F to 10°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |