Sinking Spring, Ohio has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 43 °F (low) to 63.8 °F (high). Annual precipitation averages 45.2 Inches. Sinking Spring 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 | 21.8 °F | 38.9 °F | 3.22 in. |
| February | 24.2 °F | 42.9 °F | 3.19 in. |
| March | 31.6 °F | 52.4 °F | 4.16 in. |
| April | 41.3 °F | 65.2 °F | 4.4 in. |
| May | 52.0 °F | 73.6 °F | 4.75 in. |
| June | 60.6 °F | 81.7 °F | 4.53 in. |
| July | 63.7 °F | 84.7 °F | 4.55 in. |
| August | 61.8 °F | 83.8 °F | 3.46 in. |
| September | 54.7 °F | 78.5 °F | 3.26 in. |
| October | 43.5 °F | 66.9 °F | 3.08 in. |
| November | 33.6 °F | 53.5 °F | 3.09 in. |
| December | 27.0 °F | 43.0 °F | 3.51 in. |
| Annual | 43 °F | 63.8 °F | 45.2 in. |
| 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 : -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 |