Juliustown, New Jersey has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 45 °F (low) to 64.4 °F (high). Annual precipitation averages 47 Inches. Juliustown is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 24.3 °F | 41.1 °F | 3.56 in. |
| February | 25.4 °F | 43.8 °F | 2.73 in. |
| March | 32.4 °F | 51.4 °F | 4.36 in. |
| April | 42.2 °F | 63.4 °F | 3.26 in. |
| May | 52.0 °F | 72.8 °F | 3.85 in. |
| June | 61.3 °F | 82.0 °F | 4.3 in. |
| July | 66.6 °F | 86.3 °F | 4.82 in. |
| August | 65.0 °F | 84.8 °F | 4.85 in. |
| September | 58.1 °F | 78.4 °F | 3.9 in. |
| October | 46.5 °F | 66.8 °F | 3.95 in. |
| November | 36.4 °F | 56.1 °F | 3.21 in. |
| December | 29.2 °F | 46.0 °F | 4.2 in. |
| Annual | 45 °F | 64.4 °F | 46.99 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 75-100 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 |