Morgan, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 53.9 °F (low) to 77.8 °F (high). Annual precipitation averages 37.8 Inches. Morgan 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 | 33.9 °F | 58.3 °F | 2.43 in. |
| February | 37.7 °F | 62.2 °F | 2.53 in. |
| March | 45.3 °F | 69.4 °F | 3.35 in. |
| April | 52.8 °F | 77.4 °F | 3.41 in. |
| May | 62.3 °F | 84.5 °F | 4.58 in. |
| June | 70.0 °F | 91.9 °F | 4.13 in. |
| July | 73.0 °F | 96.3 °F | 1.88 in. |
| August | 72.5 °F | 96.7 °F | 2.62 in. |
| September | 65.4 °F | 89.9 °F | 3.26 in. |
| October | 54.5 °F | 79.8 °F | 4.0 in. |
| November | 44.0 °F | 67.9 °F | 2.88 in. |
| December | 35.8 °F | 59.6 °F | 2.74 in. |
| Annual | 53.9 °F | 77.8 °F | 37.81 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 11 - Mar. 20 |
| 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 | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |