Chrisman, Illinois has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 5.9 °C (low) to 17.1 °C (high). Annual precipitation averages 1067.1 Millimeters. Chrisman 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. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -7.3 °C | 1.6 °C | 68.58 mm |
| February | -5.4 °C | 4.3 °C | 59.18 mm |
| March | -0.4 °C | 10.6 °C | 76.96 mm |
| April | 5.4 °C | 17.6 °C | 114.81 mm |
| May | 11.7 °C | 23.6 °C | 114.3 mm |
| June | 16.7 °C | 28.1 °C | 124.21 mm |
| July | 18.1 °C | 29.3 °C | 106.17 mm |
| August | 16.8 °C | 28.8 °C | 78.99 mm |
| September | 12.6 °C | 26.1 °C | 77.98 mm |
| October | 6.3 °C | 19.3 °C | 89.92 mm |
| November | 0.4 °C | 11.1 °C | 87.88 mm |
| December | -4.2 °C | 4.3 °C | 68.07 mm |
| Annual | 5.9 °C | 17.1 °C | 1067.05 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| 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 | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |