Uncertain, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 53.7 °F (low) to 76.7 °F (high). Annual precipitation averages 52.6 Inches. Uncertain 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. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 34.8 °F | 57.2 °F | 4.34 in. |
| February | 38.3 °F | 61.2 °F | 4.41 in. |
| March | 45.2 °F | 69.1 °F | 4.96 in. |
| April | 52.6 °F | 77.2 °F | 5.02 in. |
| May | 62.0 °F | 83.8 °F | 4.47 in. |
| June | 69.6 °F | 90.7 °F | 4.88 in. |
| July | 72.8 °F | 94.2 °F | 3.22 in. |
| August | 71.7 °F | 94.6 °F | 3.19 in. |
| September | 64.9 °F | 88.9 °F | 3.88 in. |
| October | 53.1 °F | 78.5 °F | 4.91 in. |
| November | 43.1 °F | 66.9 °F | 4.27 in. |
| December | 36.6 °F | 58.5 °F | 5.02 in. |
| Annual | 53.7 °F | 76.7 °F | 52.57 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| Average Days With Frost | 30-40 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 |