Eldorado, Wisconsin has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 2.7 °C (low) to 12.7 °C (high). Annual precipitation averages 807 Millimeters. Eldorado is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -12.1 °C | -3.6 °C | 30.48 mm |
| February | -10.8 °C | -1.6 °C | 26.16 mm |
| March | -4.8 °C | 4.8 °C | 42.16 mm |
| April | 1.8 °C | 12.4 °C | 81.28 mm |
| May | 8.3 °C | 19.4 °C | 90.93 mm |
| June | 13.9 °C | 24.8 °C | 120.14 mm |
| July | 16.3 °C | 27.1 °C | 93.98 mm |
| August | 15.3 °C | 26.1 °C | 89.66 mm |
| September | 10.9 °C | 22.3 °C | 76.96 mm |
| October | 4.3 °C | 14.7 °C | 71.63 mm |
| November | -2.1 °C | 6.7 °C | 48.26 mm |
| December | -8.2 °C | -0.4 °C | 35.31 mm |
| Annual | 2.7 °C | 12.7 °C | 806.95 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 5a : -28.9°C to -26.1°C |
| Plant Hardiness Zone - 2012 | Zone 5a : -28.9°C to -26.1°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |