Georgetown, Ohio has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 43.3 °F (low) to 64 °F (high). Annual precipitation averages 47.5 Inches. Georgetown is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 22.1 °F | 39.5 °F | 3.29 in. |
| February | 24.7 °F | 43.8 °F | 3.13 in. |
| March | 32.0 °F | 52.9 °F | 4.51 in. |
| April | 41.8 °F | 65.0 °F | 4.67 in. |
| May | 52.2 °F | 73.6 °F | 5.06 in. |
| June | 60.7 °F | 81.9 °F | 4.73 in. |
| July | 64.0 °F | 85.2 °F | 4.97 in. |
| August | 62.3 °F | 84.2 °F | 3.65 in. |
| September | 55.1 °F | 78.4 °F | 3.34 in. |
| October | 43.4 °F | 66.8 °F | 3.11 in. |
| November | 33.8 °F | 53.6 °F | 3.27 in. |
| December | 27.2 °F | 43.5 °F | 3.73 in. |
| Annual | 43.3 °F | 64 °F | 47.46 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 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 |