Richland, 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 64.8 °F (high). Annual precipitation averages 48 Inches. Richland 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. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 23.9 °F | 42.4 °F | 3.63 in. |
| February | 25.2 °F | 44.8 °F | 2.98 in. |
| March | 31.9 °F | 52.2 °F | 4.59 in. |
| April | 41.9 °F | 63.7 °F | 3.52 in. |
| May | 51.6 °F | 72.8 °F | 3.48 in. |
| June | 61.1 °F | 81.8 °F | 4.1 in. |
| July | 66.5 °F | 86.5 °F | 4.86 in. |
| August | 64.5 °F | 84.5 °F | 4.91 in. |
| September | 57.9 °F | 78.5 °F | 4.04 in. |
| October | 45.6 °F | 67.0 °F | 4.08 in. |
| November | 35.6 °F | 56.6 °F | 3.36 in. |
| December | 28.8 °F | 47.2 °F | 4.4 in. |
| Annual | 44.5 °F | 64.8 °F | 47.95 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| 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 |