Roosevelt, New Jersey has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 44.3 °F (low) to 63.9 °F (high). Annual precipitation averages 47.7 Inches. Roosevelt is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 23.5 °F | 40.7 °F | 3.58 in. |
| February | 25.1 °F | 43.2 °F | 2.68 in. |
| March | 32.0 °F | 50.7 °F | 4.34 in. |
| April | 41.8 °F | 62.6 °F | 3.68 in. |
| May | 51.4 °F | 72.3 °F | 3.89 in. |
| June | 60.5 °F | 81.5 °F | 4.56 in. |
| July | 66.0 °F | 86.1 °F | 4.78 in. |
| August | 64.3 °F | 84.4 °F | 4.6 in. |
| September | 57.0 °F | 77.9 °F | 4.13 in. |
| October | 45.6 °F | 66.2 °F | 3.87 in. |
| November | 35.7 °F | 55.7 °F | 3.3 in. |
| December | 28.4 °F | 45.7 °F | 4.32 in. |
| Annual | 44.3 °F | 63.9 °F | 47.73 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |