Cedarville, New Jersey has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 47 °F (low) to 64.2 °F (high). Annual precipitation averages 44.7 Inches. Cedarville is located in USDA Plant Hardiness Zone 7b. 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 | 26.2 °F | 42.4 °F | 3.28 in. |
| February | 27.1 °F | 44.0 °F | 2.91 in. |
| March | 34.0 °F | 51.4 °F | 4.14 in. |
| April | 44.0 °F | 62.7 °F | 3.4 in. |
| May | 53.8 °F | 71.8 °F | 3.59 in. |
| June | 63.2 °F | 80.9 °F | 4.09 in. |
| July | 68.8 °F | 85.4 °F | 4.41 in. |
| August | 67.0 °F | 83.5 °F | 4.43 in. |
| September | 60.5 °F | 77.9 °F | 3.77 in. |
| October | 49.5 °F | 66.9 °F | 3.77 in. |
| November | 39.0 °F | 56.2 °F | 3.02 in. |
| December | 31.2 °F | 46.9 °F | 3.93 in. |
| Annual | 47 °F | 64.2 °F | 44.74 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7b : 5°F to 10°F |
| Plant Hardiness Zone - 2012 | Zone 7a : 0°F to 5°F |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |