Chrisman, Illinois has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 42.6 °F (low) to 62.7 °F (high). Annual precipitation averages 42 Inches. 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 | 18.8 °F | 34.9 °F | 2.7 in. |
| February | 22.2 °F | 39.7 °F | 2.33 in. |
| March | 31.2 °F | 51.1 °F | 3.03 in. |
| April | 41.7 °F | 63.6 °F | 4.52 in. |
| May | 53.0 °F | 74.4 °F | 4.5 in. |
| June | 62.1 °F | 82.6 °F | 4.89 in. |
| July | 64.6 °F | 84.8 °F | 4.18 in. |
| August | 62.3 °F | 83.8 °F | 3.11 in. |
| September | 54.6 °F | 78.9 °F | 3.07 in. |
| October | 43.4 °F | 66.7 °F | 3.54 in. |
| November | 32.8 °F | 52.0 °F | 3.46 in. |
| December | 24.5 °F | 39.7 °F | 2.68 in. |
| Annual | 42.6 °F | 62.7 °F | 42.01 in. |
| 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 : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |