Berlin, 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 64.8 °F (high). Annual precipitation averages 47.2 Inches. Berlin 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 | 23.7 °F | 41.6 °F | 3.68 in. |
| February | 24.9 °F | 44.1 °F | 2.82 in. |
| March | 31.9 °F | 51.7 °F | 4.51 in. |
| April | 41.8 °F | 63.8 °F | 3.45 in. |
| May | 51.3 °F | 74.0 °F | 3.79 in. |
| June | 60.5 °F | 82.7 °F | 4.17 in. |
| July | 65.9 °F | 86.6 °F | 4.85 in. |
| August | 64.4 °F | 85.2 °F | 4.8 in. |
| September | 57.7 °F | 78.4 °F | 4.02 in. |
| October | 45.5 °F | 66.9 °F | 3.84 in. |
| November | 35.5 °F | 55.9 °F | 3.11 in. |
| December | 28.6 °F | 46.4 °F | 4.18 in. |
| Annual | 44.3 °F | 64.8 °F | 47.22 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 | Moderate Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |