Chadds Ford, Pennsylvania has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 44.7 °F (low) to 63.4 °F (high). Annual precipitation averages 48.3 Inches. Chadds Ford is located in USDA Plant Hardiness Zone 7b. 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 | 23.7 °F | 40.0 °F | 3.56 in. |
| February | 24.7 °F | 42.3 °F | 2.89 in. |
| March | 31.9 °F | 50.5 °F | 4.36 in. |
| April | 42.4 °F | 62.7 °F | 3.83 in. |
| May | 52.1 °F | 72.2 °F | 3.84 in. |
| June | 61.4 °F | 81.1 °F | 4.56 in. |
| July | 66.7 °F | 85.6 °F | 4.52 in. |
| August | 65.0 °F | 84.0 °F | 4.4 in. |
| September | 57.8 °F | 77.5 °F | 4.87 in. |
| October | 45.9 °F | 65.7 °F | 4.1 in. |
| November | 36.0 °F | 54.4 °F | 3.2 in. |
| December | 29.0 °F | 44.5 °F | 4.13 in. |
| Annual | 44.7 °F | 63.4 °F | 48.26 in. |
| 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 7b : 5°F to 10°F |
| Plant Hardiness Zone - 2012 | Zone 7a : 0°F to 5°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |