Alvarado, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 54.8 °F (low) to 76.9 °F (high). Annual precipitation averages 38.3 Inches. Alvarado 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 | 34.9 °F | 57.1 °F | 2.52 in. |
| February | 38.6 °F | 61.1 °F | 2.67 in. |
| March | 45.8 °F | 68.2 °F | 3.66 in. |
| April | 53.2 °F | 76.1 °F | 3.4 in. |
| May | 62.8 °F | 83.4 °F | 4.63 in. |
| June | 70.7 °F | 91.3 °F | 3.9 in. |
| July | 73.7 °F | 95.6 °F | 1.92 in. |
| August | 73.5 °F | 95.9 °F | 2.49 in. |
| September | 66.4 °F | 89.1 °F | 2.96 in. |
| October | 55.5 °F | 79.0 °F | 4.37 in. |
| November | 45.1 °F | 67.0 °F | 2.91 in. |
| December | 36.8 °F | 58.5 °F | 2.85 in. |
| Annual | 54.8 °F | 76.9 °F | 38.28 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 |