York, North Dakota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from -2.2 °C (low) to 9.5 °C (high). Annual precipitation averages 502.2 Millimeters. York 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 | -19.6 °C | -9.5 °C | 12.19 mm |
| February | -17.5 °C | -6.9 °C | 12.7 mm |
| March | -10.5 °C | -0.1 °C | 19.56 mm |
| April | -2.2 °C | 10 °C | 24.38 mm |
| May | 4.9 °C | 18.1 °C | 69.34 mm |
| June | 11.3 °C | 23.1 °C | 96.52 mm |
| July | 13.6 °C | 26 °C | 84.33 mm |
| August | 11.8 °C | 25.7 °C | 60.2 mm |
| September | 6.7 °C | 20.8 °C | 46.74 mm |
| October | -0.4 °C | 11.7 °C | 39.12 mm |
| November | -8.6 °C | 1.4 °C | 20.83 mm |
| December | -15.9 °C | -6.7 °C | 16.26 mm |
| Annual | -2.2 °C | 9.5 °C | 502.17 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 4a : -34.4°C to -31.7°C |
| Plant Hardiness Zone - 2012 | Zone 3b : -37.2°C to -34.4°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |