Elkville, Illinois has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 46.3 °F (low) to 66.6 °F (high). Annual precipitation averages 46.9 Inches. Elkville is located in USDA Plant Hardiness Zone 7a. 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 | 24.0 °F | 40.8 °F | 3.13 in. |
| February | 27.5 °F | 45.8 °F | 2.94 in. |
| March | 35.7 °F | 55.9 °F | 4.18 in. |
| April | 46.0 °F | 67.4 °F | 5.25 in. |
| May | 56.3 °F | 76.6 °F | 5.36 in. |
| June | 64.9 °F | 85.3 °F | 4.73 in. |
| July | 68.3 °F | 88.0 °F | 3.89 in. |
| August | 65.6 °F | 86.9 °F | 3.13 in. |
| September | 57.3 °F | 81.1 °F | 3.28 in. |
| October | 45.8 °F | 70.0 °F | 3.51 in. |
| November | 35.9 °F | 56.2 °F | 4.14 in. |
| December | 28.2 °F | 45.0 °F | 3.36 in. |
| Annual | 46.3 °F | 66.6 °F | 46.9 in. |
| 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 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |