Pillager, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from -0.4 °C (low) to 10.8 °C (high). Annual precipitation averages 714.5 Millimeters. Pillager is located in USDA Plant Hardiness Zone 4a. 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 | -17.8 °C | -7.2 °C | 16.76 mm |
| February | -16 °C | -4.1 °C | 18.54 mm |
| March | -8.6 °C | 3 °C | 32.51 mm |
| April | -0.9 °C | 11.1 °C | 57.91 mm |
| May | 6.6 °C | 18.7 °C | 89.15 mm |
| June | 12.5 °C | 23.9 °C | 109.98 mm |
| July | 14.9 °C | 26.5 °C | 108.71 mm |
| August | 13.4 °C | 25.3 °C | 86.61 mm |
| September | 8.6 °C | 20.4 °C | 73.15 mm |
| October | 1.6 °C | 12.3 °C | 70.36 mm |
| November | -5.6 °C | 3.3 °C | 28.96 mm |
| December | -12.9 °C | -4.1 °C | 21.84 mm |
| Annual | -0.4 °C | 10.8 °C | 714.48 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 4a : -34.4°C to -31.7°C |
| Plant Hardiness Zone - 2012 | Zone 4a : -34.4°C to -31.7°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |