Goodland, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from -1.7 °C (low) to 9.9 °C (high). Annual precipitation averages 731.8 Millimeters. Goodland is located in USDA Plant Hardiness Zone 4a. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Sep.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -18.6 °C | -7.9 °C | 22.1 mm |
| February | -16.8 °C | -4.5 °C | 19.81 mm |
| March | -9.8 °C | 2.6 °C | 30.48 mm |
| April | -2.3 °C | 10.2 °C | 52.58 mm |
| May | 4.6 °C | 17.8 °C | 80.26 mm |
| June | 10.3 °C | 22.9 °C | 114.3 mm |
| July | 12.9 °C | 25.4 °C | 102.87 mm |
| August | 11.7 °C | 24.4 °C | 84.33 mm |
| September | 7.3 °C | 19.7 °C | 86.36 mm |
| October | 0.9 °C | 11.3 °C | 71.63 mm |
| November | -6.5 °C | 2.1 °C | 38.1 mm |
| December | -14 °C | -5.1 °C | 28.96 mm |
| Annual | -1.7 °C | 9.9 °C | 731.78 mm |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | Over 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 | Moderate Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |