Landfall, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 2.2 °C (low) to 12.5 °C (high). Annual precipitation averages 878.1 Millimeters. Landfall is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -14.1 °C | -5.1 °C | 26.42 mm |
| February | -12.3 °C | -2.3 °C | 23.88 mm |
| March | -5.7 °C | 4.8 °C | 44.96 mm |
| April | 1.7 °C | 13 °C | 80.52 mm |
| May | 8.7 °C | 20 °C | 109.47 mm |
| June | 14.5 °C | 25.3 °C | 128.02 mm |
| July | 17.1 °C | 27.7 °C | 108.71 mm |
| August | 15.6 °C | 26.4 °C | 114.05 mm |
| September | 10.9 °C | 22.3 °C | 87.63 mm |
| October | 3.6 °C | 14.2 °C | 75.95 mm |
| November | -3.4 °C | 5.4 °C | 43.43 mm |
| December | -10.2 °C | -2.2 °C | 35.05 mm |
| Annual | 2.2 °C | 12.5 °C | 878.09 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 5a : -28.9°C to -26.1°C |
| Plant Hardiness Zone - 2012 | Zone 4b : -31.7°C to -28.9°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |