Dorothy, New Jersey has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 44.5 °F (low) to 64.9 °F (high). Annual precipitation averages 48.3 Inches. Dorothy is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 23.7 °F | 42.7 °F | 3.58 in. |
| February | 24.9 °F | 44.9 °F | 3.14 in. |
| March | 31.9 °F | 52.0 °F | 4.75 in. |
| April | 41.8 °F | 63.6 °F | 3.67 in. |
| May | 51.6 °F | 72.5 °F | 3.5 in. |
| June | 61.1 °F | 81.5 °F | 3.91 in. |
| July | 66.4 °F | 86.3 °F | 4.74 in. |
| August | 64.6 °F | 84.4 °F | 4.73 in. |
| September | 57.8 °F | 78.6 °F | 3.99 in. |
| October | 45.6 °F | 67.3 °F | 4.28 in. |
| November | 35.6 °F | 56.9 °F | 3.47 in. |
| December | 28.6 °F | 47.5 °F | 4.53 in. |
| Annual | 44.5 °F | 64.9 °F | 48.29 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| 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 |