Zumbrota, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 34.9 °F (low) to 54.7 °F (high). Annual precipitation averages 34.7 Inches. Zumbrota 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 | 5.6 °F | 23.1 °F | 0.96 in. |
| February | 9.4 °F | 27.9 °F | 0.97 in. |
| March | 21.8 °F | 40.4 °F | 1.84 in. |
| April | 34.1 °F | 55.9 °F | 3.22 in. |
| May | 46.5 °F | 68.2 °F | 4.31 in. |
| June | 56.9 °F | 77.6 °F | 5.44 in. |
| July | 60.6 °F | 81.4 °F | 4.17 in. |
| August | 58.2 °F | 79.3 °F | 4.8 in. |
| September | 50.0 °F | 72.7 °F | 3.73 in. |
| October | 37.4 °F | 59.2 °F | 2.43 in. |
| November | 25.2 °F | 42.3 °F | 1.61 in. |
| December | 13.2 °F | 28.9 °F | 1.22 in. |
| Annual | 34.9 °F | 54.7 °F | 34.7 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 | Dfb - Humid Continental Mild Summer, Wet All Year |