Pleasant Grove, Ohio has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 41.2 °F (low) to 61.8 °F (high). Annual precipitation averages 41.6 Inches. Pleasant Grove is located in USDA Plant Hardiness Zone 6b. 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 | 20.1 °F | 36.7 °F | 3.12 in. |
| February | 21.7 °F | 40.0 °F | 2.51 in. |
| March | 29.4 °F | 50.0 °F | 3.48 in. |
| April | 39.8 °F | 63.2 °F | 3.79 in. |
| May | 49.8 °F | 72.4 °F | 4.02 in. |
| June | 58.4 °F | 80.1 °F | 4.59 in. |
| July | 62.2 °F | 83.4 °F | 4.12 in. |
| August | 60.6 °F | 82.4 °F | 3.75 in. |
| September | 53.1 °F | 76.1 °F | 3.37 in. |
| October | 41.8 °F | 64.3 °F | 2.82 in. |
| November | 32.3 °F | 52.1 °F | 2.93 in. |
| December | 25.3 °F | 41.3 °F | 3.06 in. |
| Annual | 41.2 °F | 61.8 °F | 41.56 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| 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 |