Lawrence, Pennsylvania has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 42.5 °F (low) to 62.2 °F (high). Annual precipitation averages 42.3 Inches. Lawrence is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 21.8 °F | 37.7 °F | 3.26 in. |
| February | 23.2 °F | 40.3 °F | 2.63 in. |
| March | 30.1 °F | 49.5 °F | 3.46 in. |
| April | 40.0 °F | 63.0 °F | 3.51 in. |
| May | 50.3 °F | 72.3 °F | 4.2 in. |
| June | 59.1 °F | 80.3 °F | 4.25 in. |
| July | 63.2 °F | 84.4 °F | 4.61 in. |
| August | 62.0 °F | 83.0 °F | 3.47 in. |
| September | 55.2 °F | 76.7 °F | 3.44 in. |
| October | 43.8 °F | 64.6 °F | 3.1 in. |
| November | 34.3 °F | 52.4 °F | 3.05 in. |
| December | 27.2 °F | 42.1 °F | 3.3 in. |
| Annual | 42.5 °F | 62.2 °F | 42.28 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |