Omaha, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 53 °F (low) to 75.5 °F (high). Annual precipitation averages 50.5 Inches. Omaha is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 11 - Mar. 20 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 34.0 °F | 55.7 °F | 3.7 in. |
| February | 37.1 °F | 59.5 °F | 4.4 in. |
| March | 44.4 °F | 67.5 °F | 4.69 in. |
| April | 51.6 °F | 74.9 °F | 4.44 in. |
| May | 61.2 °F | 82.4 °F | 5.18 in. |
| June | 68.8 °F | 89.4 °F | 4.19 in. |
| July | 71.9 °F | 93.2 °F | 3.67 in. |
| August | 70.8 °F | 94.0 °F | 2.74 in. |
| September | 64.5 °F | 88.1 °F | 4.23 in. |
| October | 52.5 °F | 77.8 °F | 4.71 in. |
| November | 43.1 °F | 66.2 °F | 3.93 in. |
| December | 35.9 °F | 57.6 °F | 4.57 in. |
| Annual | 53 °F | 75.5 °F | 50.45 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| Average Days With Frost | 40-50 Days |
| Plant Hardiness Zone | Zone 8b : 15°F to 20°F |
| Plant Hardiness Zone - 2012 | Zone 8a : 10°F to 15°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |