Velva, North Dakota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 29 °F (low) to 52.2 °F (high). Annual precipitation averages 19.4 Inches. Velva is located in USDA Plant Hardiness Zone 4a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -0.7 °F | 18.9 °F | 0.6 in. |
| February | 2.8 °F | 23.7 °F | 0.51 in. |
| March | 15.2 °F | 35.9 °F | 0.7 in. |
| April | 28.1 °F | 53.8 °F | 1.04 in. |
| May | 41.3 °F | 67.1 °F | 2.78 in. |
| June | 52.3 °F | 75.4 °F | 3.89 in. |
| July | 56.9 °F | 80.8 °F | 2.96 in. |
| August | 53.7 °F | 81.1 °F | 2.08 in. |
| September | 44.4 °F | 72.0 °F | 1.69 in. |
| October | 31.3 °F | 55.9 °F | 1.54 in. |
| November | 17.4 °F | 37.4 °F | 0.93 in. |
| December | 5.1 °F | 24.0 °F | 0.68 in. |
| Annual | 29 °F | 52.2 °F | 19.4 in. |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 4a : -30°F to -25°F |
| Plant Hardiness Zone - 2012 | Zone 4a : -30°F to -25°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |