Millington, New Jersey has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 5.6 °C (low) to 17 °C (high). Annual precipitation averages 1258.8 Millimeters. Millington 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 | -6.1 °C | 3.6 °C | 94.49 mm |
| February | -5.5 °C | 5.1 °C | 73.66 mm |
| March | -1.5 °C | 9.7 °C | 111 mm |
| April | 4.4 °C | 16.6 °C | 101.09 mm |
| May | 9.8 °C | 22 °C | 104.14 mm |
| June | 14.8 °C | 26.9 °C | 120.65 mm |
| July | 17.7 °C | 29.6 °C | 120.65 mm |
| August | 16.8 °C | 28.6 °C | 116.33 mm |
| September | 12.8 °C | 24.8 °C | 107.19 mm |
| October | 6.2 °C | 18.1 °C | 109.98 mm |
| November | 0.8 °C | 12.1 °C | 89.92 mm |
| December | -3.1 °C | 6.3 °C | 109.73 mm |
| Annual | 5.6 °C | 17 °C | 1258.83 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |