Springboro, Ohio has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 43.5 °F (low) to 63.4 °F (high). Annual precipitation averages 41.5 Inches. Springboro 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. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 21.6 °F | 37.6 °F | 3.1 in. |
| February | 23.6 °F | 41.3 °F | 2.43 in. |
| March | 31.8 °F | 51.4 °F | 3.5 in. |
| April | 42.1 °F | 64.0 °F | 4.37 in. |
| May | 53.0 °F | 74.0 °F | 4.42 in. |
| June | 61.8 °F | 82.0 °F | 4.64 in. |
| July | 65.2 °F | 85.4 °F | 3.93 in. |
| August | 63.2 °F | 84.5 °F | 2.97 in. |
| September | 55.7 °F | 78.7 °F | 2.95 in. |
| October | 43.9 °F | 66.6 °F | 2.98 in. |
| November | 33.8 °F | 53.0 °F | 2.95 in. |
| December | 26.6 °F | 41.9 °F | 3.24 in. |
| Annual | 43.5 °F | 63.4 °F | 41.48 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |