Lake Milton, Ohio has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 39.4 °F (low) to 60.4 °F (high). Annual precipitation averages 40.2 Inches. Lake Milton is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 18.3 °F | 34.6 °F | 2.8 in. |
| February | 19.2 °F | 37.6 °F | 2.22 in. |
| March | 26.8 °F | 47.0 °F | 3.02 in. |
| April | 37.1 °F | 60.6 °F | 3.77 in. |
| May | 47.2 °F | 71.3 °F | 3.9 in. |
| June | 56.4 °F | 79.5 °F | 4.17 in. |
| July | 60.3 °F | 83.3 °F | 4.35 in. |
| August | 58.4 °F | 81.8 °F | 3.36 in. |
| September | 51.6 °F | 75.6 °F | 3.68 in. |
| October | 40.8 °F | 63.2 °F | 3.19 in. |
| November | 32.2 °F | 50.3 °F | 2.88 in. |
| December | 24.5 °F | 39.4 °F | 2.87 in. |
| Annual | 39.4 °F | 60.4 °F | 40.21 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| 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 |