New Hope, Pennsylvania has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 6.4 °C (low) to 18 °C (high). Annual precipitation averages 1255 Millimeters. New Hope 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 | -5.1 °C | 4.6 °C | 91.19 mm |
| February | -4.3 °C | 6 °C | 72.14 mm |
| March | -0.6 °C | 10.6 °C | 107.95 mm |
| April | 4.9 °C | 17.6 °C | 96.01 mm |
| May | 10.4 °C | 22.9 °C | 107.44 mm |
| June | 15.6 °C | 28 °C | 117.86 mm |
| July | 18.7 °C | 30.7 °C | 128.27 mm |
| August | 17.7 °C | 29.6 °C | 115.57 mm |
| September | 13.6 °C | 25.9 °C | 109.47 mm |
| October | 7.1 °C | 19.3 °C | 107.19 mm |
| November | 1.6 °C | 12.9 °C | 88.65 mm |
| December | -2.4 °C | 7.3 °C | 113.28 mm |
| Annual | 6.4 °C | 18 °C | 1255.02 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 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 |