Lyle, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 1.9 °C (low) to 12.5 °C (high). Annual precipitation averages 916.2 Millimeters. Lyle is located in USDA Plant Hardiness Zone 5a. 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 | -14.2 °C | -5 °C | 25.91 mm |
| February | -12.1 °C | -2.6 °C | 27.69 mm |
| March | -5.2 °C | 4.3 °C | 48.77 mm |
| April | 1.6 °C | 12.9 °C | 95.25 mm |
| May | 8.4 °C | 19.9 °C | 123.44 mm |
| June | 14.3 °C | 25.4 °C | 134.62 mm |
| July | 16.2 °C | 27.2 °C | 120.65 mm |
| August | 14.7 °C | 26 °C | 103.89 mm |
| September | 10 °C | 22.5 °C | 89.92 mm |
| October | 3 °C | 14.9 °C | 68.33 mm |
| November | -3.7 °C | 5.8 °C | 42.93 mm |
| December | -10.2 °C | -1.8 °C | 34.8 mm |
| Annual | 1.9 °C | 12.5 °C | 916.2 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 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 |