Clifton, New Jersey has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 7 °C (low) to 17.1 °C (high). Annual precipitation averages 1269.5 Millimeters. Clifton is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -5 °C | 3.7 °C | 93.73 mm |
| February | -4.1 °C | 5.2 °C | 72.14 mm |
| March | -0.3 °C | 9.7 °C | 111.25 mm |
| April | 5.5 °C | 16.4 °C | 105.16 mm |
| May | 10.9 °C | 22.1 °C | 104.9 mm |
| June | 16.3 °C | 27.1 °C | 122.43 mm |
| July | 19.3 °C | 29.9 °C | 111.51 mm |
| August | 18.4 °C | 28.8 °C | 113.54 mm |
| September | 14.3 °C | 25 °C | 114.81 mm |
| October | 7.7 °C | 18.4 °C | 115.82 mm |
| November | 2.3 °C | 12.2 °C | 94.74 mm |
| December | -1.7 °C | 6.5 °C | 109.47 mm |
| Annual | 7 °C | 17.1 °C | 1269.5 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7a : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |