Cedar Mills, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 1.3 °C (low) to 12.2 °C (high). Annual precipitation averages 775 Millimeters. Cedar Mills is located in USDA Plant Hardiness Zone 4b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -15.5 °C | -5.9 °C | 18.29 mm |
| February | -13.7 °C | -3.3 °C | 20.57 mm |
| March | -6.5 °C | 3.6 °C | 38.1 mm |
| April | 1 °C | 12.7 °C | 69.34 mm |
| May | 8.1 °C | 20.1 °C | 97.03 mm |
| June | 14.3 °C | 25.4 °C | 132.08 mm |
| July | 16.4 °C | 27.7 °C | 93.73 mm |
| August | 14.8 °C | 26.4 °C | 104.65 mm |
| September | 10.1 °C | 22.6 °C | 83.31 mm |
| October | 2.8 °C | 14.3 °C | 56.9 mm |
| November | -4.4 °C | 5 °C | 35.56 mm |
| December | -11.4 °C | -2.8 °C | 25.4 mm |
| Annual | 1.3 °C | 12.2 °C | 774.96 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 4b : -31.7°C to -28.9°C |
| Plant Hardiness Zone - 2012 | Zone 4b : -31.7°C to -28.9°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |