Wood Dale, Illinois has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 40.9 °F (low) to 59 °F (high). Annual precipitation averages 38.6 Inches. Wood Dale is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 16.3 °F | 31.2 °F | 2.1 in. |
| February | 19.0 °F | 35.0 °F | 2.03 in. |
| March | 28.2 °F | 46.1 °F | 2.29 in. |
| April | 38.5 °F | 58.3 °F | 3.81 in. |
| May | 49.4 °F | 69.7 °F | 4.72 in. |
| June | 59.3 °F | 79.8 °F | 4.49 in. |
| July | 64.6 °F | 84.0 °F | 3.64 in. |
| August | 63.2 °F | 82.0 °F | 4.07 in. |
| September | 55.2 °F | 75.4 °F | 3.34 in. |
| October | 43.0 °F | 62.4 °F | 3.33 in. |
| November | 31.7 °F | 48.2 °F | 2.57 in. |
| December | 22.2 °F | 36.4 °F | 2.24 in. |
| Annual | 40.9 °F | 59 °F | 38.63 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6a : -10°F to -5°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 |