Ravenna, Ohio has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 40.4 °F (low) to 59.1 °F (high). Annual precipitation averages 41.8 Inches. Ravenna is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 18.7 °F | 33.6 °F | 2.96 in. |
| February | 19.8 °F | 36.4 °F | 2.3 in. |
| March | 27.4 °F | 45.7 °F | 3.18 in. |
| April | 38.3 °F | 58.9 °F | 3.78 in. |
| May | 48.6 °F | 70.1 °F | 4.11 in. |
| June | 58.0 °F | 78.2 °F | 4.32 in. |
| July | 61.7 °F | 82.0 °F | 4.34 in. |
| August | 59.9 °F | 80.6 °F | 3.61 in. |
| September | 52.8 °F | 73.9 °F | 3.84 in. |
| October | 42.2 °F | 61.8 °F | 3.38 in. |
| November | 32.9 °F | 49.2 °F | 2.98 in. |
| December | 24.8 °F | 38.4 °F | 2.97 in. |
| Annual | 40.4 °F | 59.1 °F | 41.77 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6a : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |