Wauconda, Illinois has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 39.3 °F (low) to 58.2 °F (high). Annual precipitation averages 38.4 Inches. Wauconda is located in USDA Plant Hardiness Zone 5b. 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 | 14.5 °F | 30.1 °F | 1.88 in. |
| February | 17.3 °F | 33.9 °F | 1.92 in. |
| March | 26.6 °F | 45.2 °F | 2.3 in. |
| April | 37.0 °F | 57.8 °F | 3.83 in. |
| May | 47.7 °F | 69.0 °F | 4.73 in. |
| June | 57.8 °F | 79.1 °F | 4.71 in. |
| July | 62.8 °F | 83.3 °F | 3.9 in. |
| August | 61.4 °F | 81.3 °F | 3.9 in. |
| September | 53.5 °F | 74.5 °F | 3.49 in. |
| October | 41.8 °F | 61.6 °F | 3.19 in. |
| November | 30.7 °F | 47.3 °F | 2.43 in. |
| December | 20.6 °F | 35.3 °F | 2.08 in. |
| Annual | 39.3 °F | 58.2 °F | 38.36 in. |
| 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 5b : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |