Nisswa, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 31.2 °F (low) to 51.1 °F (high). Annual precipitation averages 28.4 Inches. Nisswa is located in USDA Plant Hardiness Zone 4a. 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 | -0.3 °F | 18.8 °F | 0.69 in. |
| February | 2.7 °F | 24.5 °F | 0.73 in. |
| March | 16.3 °F | 37.4 °F | 1.32 in. |
| April | 30.2 °F | 51.9 °F | 2.25 in. |
| May | 43.5 °F | 65.2 °F | 3.45 in. |
| June | 54.2 °F | 74.6 °F | 4.23 in. |
| July | 58.6 °F | 79.2 °F | 4.38 in. |
| August | 55.8 °F | 77.3 °F | 3.46 in. |
| September | 47.2 °F | 68.5 °F | 2.74 in. |
| October | 34.9 °F | 53.6 °F | 3.01 in. |
| November | 22.0 °F | 37.8 °F | 1.21 in. |
| December | 8.7 °F | 24.4 °F | 0.88 in. |
| Annual | 31.2 °F | 51.1 °F | 28.35 in. |
| 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 4a : -30°F to -25°F |
| Plant Hardiness Zone - 2012 | Zone 3b : -35°F to -30°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |