Antioch, Ohio has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 42 °F (low) to 62.8 °F (high). Annual precipitation averages 45.7 Inches. Antioch is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 21.3 °F | 38.0 °F | 3.49 in. |
| February | 23.2 °F | 41.4 °F | 3.0 in. |
| March | 30.0 °F | 50.8 °F | 3.91 in. |
| April | 40.2 °F | 64.1 °F | 3.93 in. |
| May | 50.0 °F | 72.7 °F | 4.62 in. |
| June | 58.8 °F | 80.7 °F | 4.72 in. |
| July | 63.4 °F | 84.1 °F | 4.69 in. |
| August | 61.0 °F | 83.1 °F | 3.84 in. |
| September | 54.1 °F | 77.5 °F | 3.66 in. |
| October | 42.5 °F | 65.4 °F | 3.13 in. |
| November | 33.3 °F | 53.1 °F | 3.19 in. |
| December | 26.7 °F | 42.5 °F | 3.49 in. |
| Annual | 42 °F | 62.8 °F | 45.67 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | May 1 - May 10 |
| 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 |