Kokomo, Indiana has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 5.4 °C (low) to 16.1 °C (high). Annual precipitation averages 1060.2 Millimeters. Kokomo 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 | -7.6 °C | 0.8 °C | 71.12 mm |
| February | -6.3 °C | 2.9 °C | 59.18 mm |
| March | -1.3 °C | 9.2 °C | 73.91 mm |
| April | 4.4 °C | 16.4 °C | 100.33 mm |
| May | 10.8 °C | 22.4 °C | 111.25 mm |
| June | 16.1 °C | 27.3 °C | 129.03 mm |
| July | 17.6 °C | 28.8 °C | 117.6 mm |
| August | 16.4 °C | 28 °C | 92.2 mm |
| September | 12.3 °C | 25.2 °C | 85.09 mm |
| October | 6 °C | 18.2 °C | 75.69 mm |
| November | 0.5 °C | 10.2 °C | 80.52 mm |
| December | -4.4 °C | 3.5 °C | 64.26 mm |
| Annual | 5.4 °C | 16.1 °C | 1060.18 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6a : -23.3°C to -20.6°C |
| Plant Hardiness Zone - 2012 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |