Elkhart, Indiana has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 4.7 °C (low) to 15.1 °C (high). Annual precipitation averages 988.8 Millimeters. Elkhart is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -7.9 °C | -0.1 °C | 66.8 mm |
| February | -6.9 °C | 1.8 °C | 56.9 mm |
| March | -2.3 °C | 7.8 °C | 56.9 mm |
| April | 3.4 °C | 15 °C | 87.88 mm |
| May | 9.6 °C | 21.3 °C | 105.66 mm |
| June | 14.9 °C | 26.5 °C | 101.6 mm |
| July | 16.8 °C | 28.4 °C | 101.85 mm |
| August | 15.9 °C | 27.4 °C | 105.41 mm |
| September | 11.9 °C | 24.1 °C | 84.84 mm |
| October | 5.8 °C | 17.1 °C | 86.87 mm |
| November | 0.2 °C | 9.1 °C | 72.14 mm |
| December | -4.6 °C | 2.8 °C | 61.98 mm |
| Annual | 4.7 °C | 15.1 °C | 988.83 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| 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 |