Iowa Park, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 51.2 °F (low) to 76.6 °F (high). Annual precipitation averages 30.3 Inches. Iowa Park 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. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 30.1 °F | 54.7 °F | 1.25 in. |
| February | 33.0 °F | 59.2 °F | 1.48 in. |
| March | 41.4 °F | 67.7 °F | 2.32 in. |
| April | 49.3 °F | 76.5 °F | 2.99 in. |
| May | 60.0 °F | 84.2 °F | 3.98 in. |
| June | 68.8 °F | 92.4 °F | 3.41 in. |
| July | 72.6 °F | 97.2 °F | 2.3 in. |
| August | 71.5 °F | 97.1 °F | 2.54 in. |
| September | 63.7 °F | 89.2 °F | 3.13 in. |
| October | 51.8 °F | 78.7 °F | 3.07 in. |
| November | 40.7 °F | 65.7 °F | 1.96 in. |
| December | 31.7 °F | 56.0 °F | 1.83 in. |
| Annual | 51.2 °F | 76.6 °F | 30.26 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 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 |