New Hope, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 2.6 °C (low) to 12.7 °C (high). Annual precipitation averages 848.4 Millimeters. New Hope is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -13.9 °C | -4.9 °C | 24.64 mm |
| February | -12.1 °C | -2.3 °C | 22.86 mm |
| March | -5.4 °C | 4.8 °C | 43.69 mm |
| April | 1.9 °C | 13 °C | 78.49 mm |
| May | 9.1 °C | 20.2 °C | 110.24 mm |
| June | 14.8 °C | 25.6 °C | 120.4 mm |
| July | 17.6 °C | 28.1 °C | 108.2 mm |
| August | 16.2 °C | 26.8 °C | 106.68 mm |
| September | 11.5 °C | 22.6 °C | 87.88 mm |
| October | 4.1 °C | 14.4 °C | 67.31 mm |
| November | -3.1 °C | 5.7 °C | 43.94 mm |
| December | -10.1 °C | -2.1 °C | 34.04 mm |
| Annual | 2.6 °C | 12.7 °C | 848.37 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5a : -28.9°C to -26.1°C |
| Plant Hardiness Zone - 2012 | Zone 4b : -31.7°C to -28.9°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |