White City, Illinois has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 6.8 °C (low) to 17.7 °C (high). Annual precipitation averages 1078.2 Millimeters. White City is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -6.2 °C | 2.4 °C | 65.02 mm |
| February | -4.3 °C | 5.4 °C | 57.91 mm |
| March | 0.6 °C | 11.5 °C | 79.25 mm |
| April | 6.4 °C | 18.2 °C | 122.17 mm |
| May | 12.5 °C | 23.6 °C | 128.27 mm |
| June | 17.4 °C | 28.5 °C | 110.24 mm |
| July | 19.3 °C | 30.2 °C | 103.12 mm |
| August | 18.1 °C | 29.7 °C | 87.63 mm |
| September | 13.3 °C | 26.4 °C | 85.85 mm |
| October | 7.1 °C | 19.8 °C | 81.28 mm |
| November | 1.4 °C | 11.6 °C | 89.92 mm |
| December | -3.5 °C | 5.2 °C | 67.56 mm |
| Annual | 6.8 °C | 17.7 °C | 1078.22 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 6b : -20.6°C to -17.8°C |
| Plant Hardiness Zone - 2012 | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |