Yale, Illinois has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 44.4 °F (low) to 64.8 °F (high). Annual precipitation averages 45.2 Inches. Yale is located in USDA Plant Hardiness Zone 6b. 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 | 21.6 °F | 37.6 °F | 3.15 in. |
| February | 24.4 °F | 42.4 °F | 2.51 in. |
| March | 33.4 °F | 53.3 °F | 3.46 in. |
| April | 43.8 °F | 66.1 °F | 4.95 in. |
| May | 54.6 °F | 75.6 °F | 4.91 in. |
| June | 63.3 °F | 84.0 °F | 5.09 in. |
| July | 66.1 °F | 87.2 °F | 4.29 in. |
| August | 63.9 °F | 86.2 °F | 3.07 in. |
| September | 56.0 °F | 80.8 °F | 3.24 in. |
| October | 44.8 °F | 68.7 °F | 3.66 in. |
| November | 34.5 °F | 53.9 °F | 3.8 in. |
| December | 26.3 °F | 42.0 °F | 3.05 in. |
| Annual | 44.4 °F | 64.8 °F | 45.18 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 6b : -5°F to 0°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 |