Lake City, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 2.3 °C (low) to 13.3 °C (high). Annual precipitation averages 887 Millimeters. Lake City is located in USDA Plant Hardiness Zone 4b. 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 | -13.9 °C | -4.1 °C | 23.62 mm |
| February | -12.1 °C | -1.4 °C | 28.45 mm |
| March | -5.1 °C | 5.6 °C | 44.45 mm |
| April | 1.8 °C | 13.7 °C | 78.49 mm |
| May | 8.6 °C | 20.8 °C | 118.62 mm |
| June | 14.3 °C | 26.1 °C | 130.3 mm |
| July | 16.6 °C | 28.4 °C | 107.7 mm |
| August | 15.3 °C | 27.2 °C | 109.73 mm |
| September | 10.8 °C | 23.1 °C | 101.85 mm |
| October | 3.8 °C | 15.3 °C | 67.56 mm |
| November | -3.1 °C | 6.2 °C | 42.16 mm |
| December | -9.7 °C | -1.1 °C | 34.04 mm |
| Annual | 2.3 °C | 13.3 °C | 886.97 mm |
| 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 4b : -31.7°C to -28.9°C |
| Plant Hardiness Zone - 2012 | Zone 4b : -31.7°C to -28.9°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |