Lanesboro, Minnesota has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 35.6 °F (low) to 55.6 °F (high). Annual precipitation averages 36.2 Inches. Lanesboro 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 | 7.0 °F | 24.5 °F | 1.08 in. |
| February | 10.3 °F | 29.0 °F | 1.08 in. |
| March | 22.8 °F | 41.6 °F | 1.9 in. |
| April | 34.8 °F | 56.5 °F | 3.91 in. |
| May | 46.6 °F | 68.5 °F | 4.42 in. |
| June | 57.1 °F | 78.5 °F | 5.97 in. |
| July | 61.0 °F | 82.2 °F | 4.19 in. |
| August | 58.7 °F | 80.1 °F | 4.37 in. |
| September | 50.4 °F | 73.2 °F | 3.52 in. |
| October | 38.0 °F | 59.7 °F | 2.53 in. |
| November | 26.3 °F | 43.7 °F | 1.82 in. |
| December | 14.4 °F | 30.2 °F | 1.39 in. |
| Annual | 35.6 °F | 55.6 °F | 36.18 in. |
| 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 : -25°F to -20°F |
| Plant Hardiness Zone - 2012 | Zone 4b : -25°F to -20°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |