Marmora, New Jersey has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 47 °F (low) to 63.6 °F (high). Annual precipitation averages 47.6 Inches. Marmora 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. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 26.0 °F | 42.6 °F | 3.41 in. |
| February | 27.2 °F | 44.0 °F | 3.23 in. |
| March | 33.9 °F | 50.4 °F | 4.72 in. |
| April | 43.8 °F | 61.3 °F | 3.62 in. |
| May | 53.0 °F | 70.5 °F | 3.52 in. |
| June | 63.1 °F | 79.6 °F | 3.76 in. |
| July | 68.8 °F | 84.4 °F | 4.65 in. |
| August | 67.4 °F | 83.0 °F | 4.32 in. |
| September | 61.4 °F | 77.3 °F | 3.85 in. |
| October | 49.0 °F | 66.9 °F | 4.41 in. |
| November | 39.1 °F | 56.2 °F | 3.55 in. |
| December | 31.6 °F | 47.5 °F | 4.56 in. |
| Annual | 47 °F | 63.6 °F | 47.6 in. |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 7b : 5°F to 10°F |
| Plant Hardiness Zone - 2012 | Zone 7b : 5°F to 10°F |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |