Oak Valley, New Jersey has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 46.9 °F (low) to 64.6 °F (high). Annual precipitation averages 47.1 Inches. Oak Valley 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 | 41.3 °F | 3.66 in. |
| February | 27.3 °F | 43.7 °F | 2.82 in. |
| March | 33.9 °F | 51.6 °F | 4.47 in. |
| April | 44.2 °F | 63.8 °F | 3.54 in. |
| May | 53.7 °F | 73.5 °F | 3.75 in. |
| June | 63.2 °F | 82.7 °F | 4.28 in. |
| July | 68.8 °F | 86.9 °F | 4.64 in. |
| August | 67.2 °F | 84.9 °F | 4.64 in. |
| September | 60.5 °F | 78.3 °F | 4.12 in. |
| October | 48.4 °F | 66.5 °F | 3.92 in. |
| November | 38.2 °F | 55.8 °F | 3.08 in. |
| December | 31.1 °F | 46.1 °F | 4.22 in. |
| Annual | 46.9 °F | 64.6 °F | 47.14 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 7a : 0°F to 5°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |