Elkville, Illinois has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 8 °C (low) to 19.2 °C (high). Annual precipitation averages 1191.3 Millimeters. 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 | -4.4 °C | 4.9 °C | 79.5 mm |
| February | -2.5 °C | 7.7 °C | 74.68 mm |
| March | 2.1 °C | 13.3 °C | 106.17 mm |
| April | 7.8 °C | 19.7 °C | 133.35 mm |
| May | 13.5 °C | 24.8 °C | 136.14 mm |
| June | 18.3 °C | 29.6 °C | 120.14 mm |
| July | 20.2 °C | 31.1 °C | 98.81 mm |
| August | 18.7 °C | 30.5 °C | 79.5 mm |
| September | 14.1 °C | 27.3 °C | 83.31 mm |
| October | 7.7 °C | 21.1 °C | 89.15 mm |
| November | 2.2 °C | 13.4 °C | 105.16 mm |
| December | -2.1 °C | 7.2 °C | 85.34 mm |
| Annual | 8 °C | 19.2 °C | 1191.25 mm |
| 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 : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |