Cook, Minnesota has a Humid Continental Mild Summer With Dry Winters climate (Köppen classification: Dwb). Average annual temperatures range from -3 °C (low) to 9.4 °C (high). Annual precipitation averages 712.7 Millimeters. Cook is located in USDA Plant Hardiness Zone 3b. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -20.7 °C | -8.7 °C | 25.91 mm |
| February | -19.3 °C | -5.2 °C | 18.54 mm |
| March | -11.7 °C | 2.1 °C | 27.43 mm |
| April | -3.7 °C | 9.7 °C | 47.5 mm |
| May | 3.6 °C | 17.2 °C | 78.23 mm |
| June | 9.3 °C | 22.6 °C | 102.87 mm |
| July | 11.8 °C | 25.1 °C | 115.82 mm |
| August | 10.6 °C | 24.1 °C | 81.03 mm |
| September | 6.4 °C | 19.1 °C | 84.58 mm |
| October | 0.1 °C | 10.7 °C | 64.52 mm |
| November | -7.2 °C | 1.4 °C | 39.37 mm |
| December | -15.4 °C | -5.8 °C | 26.92 mm |
| Annual | -3 °C | 9.4 °C | 712.72 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 3b : -37.2°C to -34.4°C |
| Plant Hardiness Zone - 2012 | Zone 3a : -40°C to -37.2°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dwb - Humid Continental Mild Summer With Dry Winters |