Hinsdale, Illinois has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 41 °F (low) to 60.2 °F (high). Annual precipitation averages 40 Inches. Hinsdale is located in USDA Plant Hardiness Zone 6a. 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 | 16.3 °F | 31.8 °F | 2.22 in. |
| February | 19.0 °F | 35.7 °F | 2.14 in. |
| March | 28.4 °F | 47.3 °F | 2.38 in. |
| April | 38.8 °F | 60.0 °F | 3.99 in. |
| May | 49.7 °F | 71.2 °F | 4.8 in. |
| June | 59.8 °F | 81.1 °F | 4.47 in. |
| July | 64.6 °F | 85.4 °F | 4.04 in. |
| August | 63.0 °F | 83.3 °F | 4.19 in. |
| September | 55.3 °F | 76.9 °F | 3.34 in. |
| October | 43.0 °F | 63.7 °F | 3.56 in. |
| November | 31.9 °F | 48.9 °F | 2.58 in. |
| December | 22.0 °F | 36.8 °F | 2.3 in. |
| Annual | 41 °F | 60.2 °F | 40.01 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| 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 | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |