Hinckley, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 30.8 °F (low) to 52.6 °F (high). Annual precipitation averages 32.2 Inches. Hinckley 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 Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 0.8 °F | 21.0 °F | 0.81 in. |
| February | 4.4 °F | 26.4 °F | 0.88 in. |
| March | 17.2 °F | 38.8 °F | 1.55 in. |
| April | 29.9 °F | 53.0 °F | 2.74 in. |
| May | 41.9 °F | 66.5 °F | 3.73 in. |
| June | 52.1 °F | 75.7 °F | 4.52 in. |
| July | 56.9 °F | 80.1 °F | 4.6 in. |
| August | 54.5 °F | 78.2 °F | 4.13 in. |
| September | 46.0 °F | 70.2 °F | 3.33 in. |
| October | 34.4 °F | 55.7 °F | 3.08 in. |
| November | 22.3 °F | 39.5 °F | 1.65 in. |
| December | 9.3 °F | 26.3 °F | 1.21 in. |
| Annual | 30.8 °F | 52.6 °F | 32.23 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 4a : -30°F to -25°F |
| Plant Hardiness Zone - 2012 | Zone 4a : -30°F to -25°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |