Kettering, Ohio has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 6.2 °C (low) to 16.7 °C (high). Annual precipitation averages 1057.9 Millimeters. Kettering 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. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -6.2 °C | 2.2 °C | 79.76 mm |
| February | -5.1 °C | 4.3 °C | 60.45 mm |
| March | -0.4 °C | 10 °C | 87.88 mm |
| April | 5.6 °C | 17.1 °C | 111.25 mm |
| May | 11.4 °C | 22.7 °C | 114.05 mm |
| June | 16.4 °C | 27.4 °C | 116.59 mm |
| July | 18.2 °C | 29.1 °C | 103.63 mm |
| August | 17 °C | 28.6 °C | 76.2 mm |
| September | 13.1 °C | 25.2 °C | 77.47 mm |
| October | 6.9 °C | 18.4 °C | 74.93 mm |
| November | 1.1 °C | 10.9 °C | 75.95 mm |
| December | -3.2 °C | 4.7 °C | 79.76 mm |
| Annual | 6.2 °C | 16.7 °C | 1057.92 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6b : -20.6°C to -17.8°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 |