Logan, Ohio has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 41 °F (low) to 63.3 °F (high). Annual precipitation averages 42.5 Inches. Logan 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 | 20.0 °F | 38.4 °F | 3.25 in. |
| February | 21.7 °F | 41.7 °F | 2.71 in. |
| March | 29.0 °F | 51.7 °F | 3.76 in. |
| April | 39.1 °F | 64.8 °F | 3.97 in. |
| May | 49.7 °F | 73.5 °F | 4.17 in. |
| June | 58.6 °F | 81.4 °F | 4.44 in. |
| July | 62.5 °F | 84.5 °F | 4.3 in. |
| August | 60.6 °F | 83.6 °F | 3.66 in. |
| September | 53.0 °F | 77.8 °F | 3.19 in. |
| October | 41.0 °F | 66.2 °F | 2.94 in. |
| November | 31.4 °F | 53.7 °F | 2.94 in. |
| December | 25.3 °F | 42.7 °F | 3.19 in. |
| Annual | 41 °F | 63.3 °F | 42.52 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 | Dfa - Humid Continental Hot Summers With Year Around Precipitation |