Zap, North Dakota has a Humid Continental Mild Summer With Dry Winters climate (Köppen classification: Dwb). Average annual temperatures range from -1.3 °C (low) to 12.3 °C (high). Annual precipitation averages 446.5 Millimeters. Zap is located in USDA Plant Hardiness Zone 4a. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -16.8 °C | -5.8 °C | 8.89 mm |
| February | -14.5 °C | -2.9 °C | 12.19 mm |
| March | -8.3 °C | 4 °C | 14.48 mm |
| April | -1.9 °C | 12.9 °C | 31.75 mm |
| May | 4.7 °C | 19.6 °C | 68.83 mm |
| June | 10.5 °C | 24.4 °C | 90.93 mm |
| July | 13.3 °C | 28.5 °C | 66.55 mm |
| August | 12.2 °C | 28.8 °C | 48.01 mm |
| September | 6.5 °C | 22.9 °C | 41.91 mm |
| October | -0.3 °C | 13.8 °C | 33.78 mm |
| November | -7.6 °C | 4.3 °C | 16 mm |
| December | -13.6 °C | -3.1 °C | 13.21 mm |
| Annual | -1.3 °C | 12.3 °C | 446.53 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 4a : -34.4°C to -31.7°C |
| Plant Hardiness Zone - 2012 | Zone 4a : -34.4°C to -31.7°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dwb - Humid Continental Mild Summer With Dry Winters |