Frankfort, Ohio has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 42.7 °F (low) to 63.3 °F (high). Annual precipitation averages 42.1 Inches. Frankfort 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 | 21.6 °F | 38.1 °F | 3.07 in. |
| February | 23.4 °F | 41.4 °F | 2.84 in. |
| March | 30.9 °F | 51.3 °F | 3.78 in. |
| April | 41.2 °F | 64.1 °F | 4.14 in. |
| May | 52.1 °F | 73.7 °F | 4.5 in. |
| June | 60.8 °F | 81.9 °F | 4.45 in. |
| July | 63.9 °F | 84.5 °F | 4.01 in. |
| August | 61.7 °F | 83.8 °F | 3.35 in. |
| September | 54.1 °F | 78.4 °F | 3.03 in. |
| October | 42.9 °F | 66.3 °F | 2.96 in. |
| November | 33.0 °F | 53.2 °F | 2.88 in. |
| December | 26.9 °F | 42.4 °F | 3.13 in. |
| Annual | 42.7 °F | 63.3 °F | 42.14 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 |