Tamarack, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 29.7 °F (low) to 50.6 °F (high). Annual precipitation averages 30.2 Inches. Tamarack 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.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -0.3 °F | 19.1 °F | 0.76 in. |
| February | 3.0 °F | 25.0 °F | 0.76 in. |
| March | 15.5 °F | 37.2 °F | 1.27 in. |
| April | 28.6 °F | 50.8 °F | 2.3 in. |
| May | 40.3 °F | 64.4 °F | 3.51 in. |
| June | 50.2 °F | 73.5 °F | 4.65 in. |
| July | 55.2 °F | 77.9 °F | 4.4 in. |
| August | 53.4 °F | 76.2 °F | 3.8 in. |
| September | 45.7 °F | 68.2 °F | 3.22 in. |
| October | 34.4 °F | 53.5 °F | 3.02 in. |
| November | 21.7 °F | 37.3 °F | 1.4 in. |
| December | 8.1 °F | 24.3 °F | 1.09 in. |
| Annual | 29.7 °F | 50.6 °F | 30.18 in. |
| Average First Frost Date | Sep.11 - Sep. 20 |
| 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 | Moderate Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |