Gilboa, Ohio has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 41.3 °F (low) to 60.3 °F (high). Annual precipitation averages 37.8 Inches. Gilboa 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 | 18.6 °F | 33.1 °F | 2.55 in. |
| February | 20.4 °F | 36.3 °F | 2.12 in. |
| March | 28.4 °F | 46.8 °F | 2.56 in. |
| April | 38.8 °F | 60.4 °F | 3.63 in. |
| May | 50.5 °F | 71.7 °F | 4.17 in. |
| June | 60.2 °F | 80.6 °F | 4.2 in. |
| July | 63.4 °F | 84.1 °F | 4.12 in. |
| August | 61.3 °F | 82.1 °F | 3.53 in. |
| September | 54.0 °F | 76.7 °F | 2.95 in. |
| October | 43.1 °F | 63.9 °F | 2.76 in. |
| November | 33.0 °F | 49.7 °F | 2.74 in. |
| December | 24.3 °F | 38.0 °F | 2.47 in. |
| Annual | 41.3 °F | 60.3 °F | 37.8 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 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 |