Trinidad, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 54.8 °F (low) to 77 °F (high). Annual precipitation averages 43.5 Inches. Trinidad 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 | 36.7 °F | 58.3 °F | 3.24 in. |
| February | 39.2 °F | 61.3 °F | 3.71 in. |
| March | 46.8 °F | 67.9 °F | 4.01 in. |
| April | 53.2 °F | 76.2 °F | 3.62 in. |
| May | 62.8 °F | 83.2 °F | 4.68 in. |
| June | 70.6 °F | 90.2 °F | 4.09 in. |
| July | 72.6 °F | 94.5 °F | 2.16 in. |
| August | 71.6 °F | 95.6 °F | 2.36 in. |
| September | 67.0 °F | 89.4 °F | 3.28 in. |
| October | 54.5 °F | 79.7 °F | 5.24 in. |
| November | 45.6 °F | 67.8 °F | 3.24 in. |
| December | 37.3 °F | 59.8 °F | 3.88 in. |
| Annual | 54.8 °F | 77 °F | 43.51 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 |