McLeod, North Dakota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from -0.1 °C (low) to 11.4 °C (high). Annual precipitation averages 600.7 Millimeters. McLeod 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 Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -17.4 °C | -7.4 °C | 15.75 mm |
| February | -15.2 °C | -4.7 °C | 15.24 mm |
| March | -8.1 °C | 2.4 °C | 24.38 mm |
| April | -0.2 °C | 12 °C | 39.88 mm |
| May | 7.1 °C | 19.8 °C | 78.49 mm |
| June | 13.4 °C | 25.1 °C | 109.22 mm |
| July | 15.4 °C | 27.6 °C | 88.9 mm |
| August | 13.8 °C | 26.9 °C | 64.77 mm |
| September | 8.6 °C | 22.3 °C | 66.04 mm |
| October | 1.4 °C | 13.6 °C | 57.91 mm |
| November | -6.3 °C | 3.8 °C | 20.07 mm |
| December | -13.3 °C | -4.1 °C | 20.07 mm |
| Annual | -0.1 °C | 11.4 °C | 600.72 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 150-180 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 | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |