Eldorado, Texas has a Hot Semi-Arid Climate climate (Köppen classification: BSh). Average annual temperatures range from 51.3 °F (low) to 77.2 °F (high). Annual precipitation averages 20.1 Inches. Eldorado is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 32.4 °F | 58.6 °F | 0.89 in. |
| February | 36.1 °F | 62.8 °F | 1.29 in. |
| March | 43.6 °F | 70.5 °F | 1.43 in. |
| April | 50.1 °F | 78.6 °F | 1.43 in. |
| May | 60.0 °F | 85.5 °F | 2.54 in. |
| June | 66.8 °F | 91.5 °F | 2.4 in. |
| July | 68.5 °F | 93.5 °F | 1.57 in. |
| August | 68.0 °F | 93.3 °F | 2.25 in. |
| September | 61.8 °F | 87.0 °F | 2.24 in. |
| October | 52.7 °F | 78.2 °F | 2.16 in. |
| November | 42.0 °F | 66.9 °F | 1.07 in. |
| December | 34.1 °F | 59.6 °F | 0.84 in. |
| Annual | 51.3 °F | 77.2 °F | 20.11 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8a : 10°F to 15°F |
| Plant Hardiness Zone - 2012 | Zone 8a : 10°F to 15°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | BSh - Hot Semi-Arid Climate |