Lake George, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from -1.3 °C (low) to 9.9 °C (high). Annual precipitation averages 692.1 Millimeters. Lake George is located in USDA Plant Hardiness Zone 3b. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -19.1 °C | -8.2 °C | 19.3 mm |
| February | -17.4 °C | -5.1 °C | 17.78 mm |
| March | -9.8 °C | 2.1 °C | 29.97 mm |
| April | -1.9 °C | 10.3 °C | 49.78 mm |
| May | 5.5 °C | 17.9 °C | 80.01 mm |
| June | 11.5 °C | 23 °C | 111.51 mm |
| July | 14.1 °C | 25.8 °C | 99.06 mm |
| August | 12.8 °C | 24.8 °C | 82.8 mm |
| September | 8 °C | 19.8 °C | 77.47 mm |
| October | 1.2 °C | 11.3 °C | 66.8 mm |
| November | -6.4 °C | 2.1 °C | 32 mm |
| December | -14.2 °C | -5.2 °C | 25.65 mm |
| Annual | -1.3 °C | 9.9 °C | 692.13 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 3b : -37.2°C to -34.4°C |
| Plant Hardiness Zone - 2012 | Zone 3b : -37.2°C to -34.4°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |