Lawrenceville, Ohio has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 42 °F (low) to 61.5 °F (high). Annual precipitation averages 42.1 Inches. Lawrenceville 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 | 20.1 °F | 35.2 °F | 3.03 in. |
| February | 22.0 °F | 38.9 °F | 2.36 in. |
| March | 30.1 °F | 49.2 °F | 3.26 in. |
| April | 40.1 °F | 62.0 °F | 4.2 in. |
| May | 51.2 °F | 72.4 °F | 4.71 in. |
| June | 60.2 °F | 81.2 °F | 4.46 in. |
| July | 63.2 °F | 83.7 °F | 4.55 in. |
| August | 61.0 °F | 82.7 °F | 3.27 in. |
| September | 54.1 °F | 77.1 °F | 3.29 in. |
| October | 43.0 °F | 64.7 °F | 2.86 in. |
| November | 32.8 °F | 50.8 °F | 3.06 in. |
| December | 25.6 °F | 39.6 °F | 3.04 in. |
| Annual | 42 °F | 61.5 °F | 42.09 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 |