Skokie, Illinois has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 6.5 °C (low) to 14.9 °C (high). Annual precipitation averages 1011.9 Millimeters. Skokie 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 | -7.2 °C | 0 °C | 59.69 mm |
| February | -5.6 °C | 2.3 °C | 57.66 mm |
| March | -0.7 °C | 7.7 °C | 56.39 mm |
| April | 4.6 °C | 14 °C | 98.55 mm |
| May | 10.6 °C | 20.2 °C | 116.08 mm |
| June | 16.1 °C | 25.7 °C | 113.28 mm |
| July | 19.6 °C | 28.2 °C | 96.77 mm |
| August | 19.1 °C | 27.2 °C | 106.17 mm |
| September | 14.9 °C | 23.7 °C | 87.12 mm |
| October | 8.2 °C | 16.9 °C | 90.68 mm |
| November | 1.6 °C | 9.2 °C | 68.07 mm |
| December | -3.8 °C | 3.1 °C | 61.47 mm |
| Annual | 6.5 °C | 14.9 °C | 1011.93 mm |
| 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 : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |