Eldorado, Maryland has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 46.8 °F (low) to 67.3 °F (high). Annual precipitation averages 45.5 Inches. Eldorado is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 27.0 °F | 45.0 °F | 3.33 in. |
| February | 28.0 °F | 47.6 °F | 2.91 in. |
| March | 34.2 °F | 55.1 °F | 4.06 in. |
| April | 44.4 °F | 66.4 °F | 3.51 in. |
| May | 54.2 °F | 75.5 °F | 3.77 in. |
| June | 63.4 °F | 84.2 °F | 4.27 in. |
| July | 68.2 °F | 88.2 °F | 4.22 in. |
| August | 65.7 °F | 85.9 °F | 4.63 in. |
| September | 59.6 °F | 80.6 °F | 4.1 in. |
| October | 48.4 °F | 70.2 °F | 3.82 in. |
| November | 37.7 °F | 58.7 °F | 3.16 in. |
| December | 31.2 °F | 49.6 °F | 3.76 in. |
| Annual | 46.8 °F | 67.3 °F | 45.54 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7b : 5°F to 10°F |
| Plant Hardiness Zone - 2012 | Zone 7b : 5°F to 10°F |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |