Irving, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 56.6 °F (low) to 76.8 °F (high). Annual precipitation averages 39.3 Inches. Irving is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 1 - Mar. 10 through the first frost around Nov. 21 - Nov. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 36.1 °F | 56.4 °F | 2.62 in. |
| February | 39.8 °F | 60.6 °F | 2.86 in. |
| March | 47.4 °F | 67.9 °F | 3.46 in. |
| April | 55.3 °F | 75.9 °F | 3.52 in. |
| May | 64.9 °F | 83.4 °F | 4.69 in. |
| June | 72.9 °F | 91.4 °F | 3.94 in. |
| July | 76.2 °F | 95.8 °F | 2.05 in. |
| August | 76.0 °F | 96.2 °F | 2.26 in. |
| September | 68.8 °F | 89.3 °F | 3.1 in. |
| October | 57.4 °F | 79.0 °F | 4.66 in. |
| November | 46.5 °F | 67.0 °F | 2.93 in. |
| December | 38.3 °F | 58.4 °F | 3.2 in. |
| Annual | 56.6 °F | 76.8 °F | 39.29 in. |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| Average Days With Frost | 20-30 Days |
| Plant Hardiness Zone | Zone 8b : 15°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 8b : 15°F to 20°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |