Highland, Ohio has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 43 °F (low) to 62.3 °F (high). Annual precipitation averages 44 Inches. Highland 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 | 21.4 °F | 37.1 °F | 3.19 in. |
| February | 23.5 °F | 40.6 °F | 2.83 in. |
| March | 31.4 °F | 50.5 °F | 3.94 in. |
| April | 41.5 °F | 63.1 °F | 4.49 in. |
| May | 52.4 °F | 72.5 °F | 4.75 in. |
| June | 61.1 °F | 80.8 °F | 4.64 in. |
| July | 63.8 °F | 83.6 °F | 4.26 in. |
| August | 61.9 °F | 82.6 °F | 3.47 in. |
| September | 54.8 °F | 77.6 °F | 3.12 in. |
| October | 43.9 °F | 65.6 °F | 3.04 in. |
| November | 33.9 °F | 52.4 °F | 2.99 in. |
| December | 26.4 °F | 41.0 °F | 3.32 in. |
| Annual | 43 °F | 62.3 °F | 44.04 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 |