Lincolnshire, Illinois has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 5.4 °C (low) to 14.7 °C (high). Annual precipitation averages 968.3 Millimeters. Lincolnshire 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. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -8.3 °C | -0.4 °C | 53.59 mm |
| February | -6.8 °C | 1.6 °C | 51.31 mm |
| March | -1.8 °C | 7.3 °C | 58.17 mm |
| April | 3.8 °C | 13.8 °C | 97.54 mm |
| May | 9.8 °C | 20.2 °C | 111.25 mm |
| June | 15.4 °C | 25.9 °C | 112.27 mm |
| July | 18.6 °C | 28.4 °C | 97.54 mm |
| August | 17.9 °C | 27.4 °C | 98.81 mm |
| September | 13.6 °C | 23.8 °C | 88.39 mm |
| October | 6.8 °C | 16.8 °C | 84.07 mm |
| November | 0.4 °C | 8.9 °C | 61.72 mm |
| December | -5 °C | 2.6 °C | 53.59 mm |
| Annual | 5.4 °C | 14.7 °C | 968.25 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| 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 | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |