Nixon, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 58 °F (low) to 81 °F (high). Annual precipitation averages 34.6 Inches. Nixon is located in USDA Plant Hardiness Zone 9a. The growing season typically runs from the last frost around Feb. 21 - Feb. 29 through the first frost around Nov. 21 - Nov. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 40.5 °F | 64.0 °F | 2.05 in. |
| February | 44.6 °F | 68.0 °F | 2.2 in. |
| March | 51.1 °F | 74.3 °F | 2.78 in. |
| April | 57.3 °F | 80.4 °F | 2.77 in. |
| May | 65.8 °F | 87.0 °F | 4.32 in. |
| June | 71.6 °F | 92.6 °F | 3.47 in. |
| July | 73.2 °F | 95.6 °F | 2.46 in. |
| August | 72.9 °F | 96.9 °F | 2.99 in. |
| September | 68.2 °F | 91.2 °F | 3.54 in. |
| October | 58.9 °F | 83.6 °F | 2.99 in. |
| November | 49.2 °F | 73.2 °F | 2.62 in. |
| December | 42.3 °F | 65.5 °F | 2.41 in. |
| Annual | 58 °F | 81 °F | 34.6 in. |
| Average First Frost Date | Nov. 21 - Nov. 30 |
| Average Last Frost Date | Feb. 21 - Feb. 29 |
| Average Days With Frost | 20-30 Days |
| Plant Hardiness Zone | Zone 9a : 20°F to 25°F |
| Plant Hardiness Zone - 2012 | Zone 9a : 20°F to 25°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |