Bensenville, Illinois has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 5.1 °C (low) to 15.1 °C (high). Annual precipitation averages 979.4 Millimeters. Bensenville 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 | -8.6 °C | -0.4 °C | 53.34 mm |
| February | -7.1 °C | 1.8 °C | 52.07 mm |
| March | -1.9 °C | 7.9 °C | 58.17 mm |
| April | 3.7 °C | 14.6 °C | 97.03 mm |
| May | 9.8 °C | 21 °C | 119.13 mm |
| June | 15.3 °C | 26.6 °C | 113.79 mm |
| July | 18.3 °C | 29 °C | 92.2 mm |
| August | 17.5 °C | 27.9 °C | 102.36 mm |
| September | 13.1 °C | 24.1 °C | 84.58 mm |
| October | 6.3 °C | 16.9 °C | 84.84 mm |
| November | 0.1 °C | 9.1 °C | 65.02 mm |
| December | -5.3 °C | 2.6 °C | 56.9 mm |
| Annual | 5.1 °C | 15.1 °C | 979.43 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6a : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |