York, North Dakota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 28 °F (low) to 49.1 °F (high). Annual precipitation averages 19.8 Inches. 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 | -3.3 °F | 14.9 °F | 0.48 in. |
| February | 0.5 °F | 19.6 °F | 0.5 in. |
| March | 13.1 °F | 31.9 °F | 0.77 in. |
| April | 28.0 °F | 50.0 °F | 0.96 in. |
| May | 40.8 °F | 64.6 °F | 2.73 in. |
| June | 52.4 °F | 73.6 °F | 3.8 in. |
| July | 56.4 °F | 78.8 °F | 3.32 in. |
| August | 53.3 °F | 78.3 °F | 2.37 in. |
| September | 44.1 °F | 69.4 °F | 1.84 in. |
| October | 31.2 °F | 53.0 °F | 1.54 in. |
| November | 16.6 °F | 34.5 °F | 0.82 in. |
| December | 3.4 °F | 20.0 °F | 0.64 in. |
| Annual | 28 °F | 49.1 °F | 19.77 in. |
| 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 : -30°F to -25°F |
| Plant Hardiness Zone - 2012 | Zone 3b : -35°F to -30°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |