Miltonsburg, Ohio has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 42.1 °F (low) to 60.9 °F (high). Annual precipitation averages 43.9 Inches. Miltonsburg 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. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 21.4 °F | 36.2 °F | 3.39 in. |
| February | 23.3 °F | 39.5 °F | 2.67 in. |
| March | 30.3 °F | 48.8 °F | 3.53 in. |
| April | 40.5 °F | 61.4 °F | 3.92 in. |
| May | 49.5 °F | 70.4 °F | 4.29 in. |
| June | 58.4 °F | 78.8 °F | 4.79 in. |
| July | 63.5 °F | 82.5 °F | 4.28 in. |
| August | 60.1 °F | 81.4 °F | 3.73 in. |
| September | 54.0 °F | 75.8 °F | 3.63 in. |
| October | 43.1 °F | 63.5 °F | 3.11 in. |
| November | 34.8 °F | 51.4 °F | 3.16 in. |
| December | 26.8 °F | 40.7 °F | 3.36 in. |
| Annual | 42.1 °F | 60.9 °F | 43.86 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| 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 |