Stacy, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 33.9 °F (low) to 55.1 °F (high). Annual precipitation averages 32 Inches. Stacy 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 Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 4.2 °F | 23.1 °F | 0.8 in. |
| February | 7.5 °F | 28.6 °F | 0.81 in. |
| March | 19.8 °F | 41.1 °F | 1.48 in. |
| April | 32.8 °F | 56.2 °F | 2.89 in. |
| May | 45.6 °F | 68.9 °F | 4.18 in. |
| June | 55.6 °F | 78.1 °F | 4.47 in. |
| July | 60.3 °F | 82.5 °F | 4.42 in. |
| August | 57.8 °F | 80.5 °F | 4.08 in. |
| September | 49.6 °F | 72.8 °F | 3.24 in. |
| October | 37.1 °F | 58.7 °F | 2.8 in. |
| November | 24.6 °F | 41.9 °F | 1.65 in. |
| December | 11.6 °F | 28.2 °F | 1.16 in. |
| Annual | 33.9 °F | 55.1 °F | 31.98 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 4b : -25°F to -20°F |
| Plant Hardiness Zone - 2012 | Zone 4a : -30°F to -25°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |