Cranford, New Jersey has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 44.9 °F (low) to 64.1 °F (high). Annual precipitation averages 48.5 Inches. Cranford 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 | 23.8 °F | 40.1 °F | 3.55 in. |
| February | 25.2 °F | 42.8 °F | 2.88 in. |
| March | 32.1 °F | 51.0 °F | 4.19 in. |
| April | 42.3 °F | 63.3 °F | 3.9 in. |
| May | 52.0 °F | 73.0 °F | 4.04 in. |
| June | 61.3 °F | 82.0 °F | 4.53 in. |
| July | 66.6 °F | 87.0 °F | 4.85 in. |
| August | 65.1 °F | 85.2 °F | 4.49 in. |
| September | 58.0 °F | 78.4 °F | 4.26 in. |
| October | 46.1 °F | 66.4 °F | 4.34 in. |
| November | 36.6 °F | 55.2 °F | 3.39 in. |
| December | 29.4 °F | 45.1 °F | 4.12 in. |
| Annual | 44.9 °F | 64.1 °F | 48.54 in. |
| 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 : 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 |