Hackensack, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 30.4 °F (low) to 50.1 °F (high). Annual precipitation averages 27.2 Inches. Hackensack is located in USDA Plant Hardiness Zone 4a. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -1.3 °F | 17.8 °F | 0.66 in. |
| February | 1.6 °F | 23.7 °F | 0.7 in. |
| March | 15.2 °F | 36.5 °F | 1.25 in. |
| April | 29.4 °F | 50.9 °F | 2.15 in. |
| May | 42.5 °F | 64.5 °F | 3.25 in. |
| June | 53.1 °F | 73.6 °F | 4.2 in. |
| July | 57.9 °F | 78.2 °F | 4.08 in. |
| August | 55.6 °F | 76.4 °F | 3.12 in. |
| September | 47.1 °F | 67.7 °F | 3.01 in. |
| October | 34.7 °F | 52.8 °F | 2.7 in. |
| November | 21.4 °F | 36.3 °F | 1.14 in. |
| December | 7.4 °F | 23.1 °F | 0.91 in. |
| Annual | 30.4 °F | 50.1 °F | 27.17 in. |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 11 - May 20 |
| 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 |