Lawnside, New Jersey has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 46.8 °F (low) to 64.9 °F (high). Annual precipitation averages 47.3 Inches. Lawnside is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 25.9 °F | 41.4 °F | 3.59 in. |
| February | 27.2 °F | 44.2 °F | 2.81 in. |
| March | 34.1 °F | 52.0 °F | 4.51 in. |
| April | 44.1 °F | 64.3 °F | 3.51 in. |
| May | 53.7 °F | 74.0 °F | 3.87 in. |
| June | 63.0 °F | 83.0 °F | 4.25 in. |
| July | 68.6 °F | 87.3 °F | 4.71 in. |
| August | 66.8 °F | 85.3 °F | 4.86 in. |
| September | 60.2 °F | 78.5 °F | 4.05 in. |
| October | 48.5 °F | 66.7 °F | 3.84 in. |
| November | 38.3 °F | 55.9 °F | 3.11 in. |
| December | 31.1 °F | 46.2 °F | 4.21 in. |
| Annual | 46.8 °F | 64.9 °F | 47.32 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7b : 5°F to 10°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |