Ross, Ohio has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 44 °F (low) to 65.1 °F (high). Annual precipitation averages 43.5 Inches. Ross 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 | 22.8 °F | 39.6 °F | 3.27 in. |
| February | 24.9 °F | 43.8 °F | 2.68 in. |
| March | 32.6 °F | 53.5 °F | 3.75 in. |
| April | 42.6 °F | 65.9 °F | 4.6 in. |
| May | 53.0 °F | 75.2 °F | 4.67 in. |
| June | 62.0 °F | 83.2 °F | 4.56 in. |
| July | 65.3 °F | 86.5 °F | 3.94 in. |
| August | 63.8 °F | 86.0 °F | 3.23 in. |
| September | 55.6 °F | 80.1 °F | 3.01 in. |
| October | 44.0 °F | 68.2 °F | 3.18 in. |
| November | 33.9 °F | 54.9 °F | 3.22 in. |
| December | 27.9 °F | 44.0 °F | 3.38 in. |
| Annual | 44 °F | 65.1 °F | 43.49 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 |