Staples, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from -0.6 °C (low) to 10.8 °C (high). Annual precipitation averages 697.7 Millimeters. Staples is located in USDA Plant Hardiness Zone 4a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -18 °C | -7.4 °C | 16 mm |
| February | -16.3 °C | -4.5 °C | 18.29 mm |
| March | -8.8 °C | 2.7 °C | 27.94 mm |
| April | -1.1 °C | 11.3 °C | 55.88 mm |
| May | 6.2 °C | 18.6 °C | 90.17 mm |
| June | 12.1 °C | 23.7 °C | 111 mm |
| July | 14.7 °C | 26.7 °C | 108.97 mm |
| August | 12.9 °C | 25.5 °C | 80.77 mm |
| September | 8.4 °C | 20.9 °C | 72.64 mm |
| October | 1.4 °C | 12.4 °C | 68.58 mm |
| November | -5.8 °C | 3.4 °C | 24.89 mm |
| December | -13.3 °C | -4.3 °C | 22.61 mm |
| Annual | -0.6 °C | 10.8 °C | 697.74 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 1 - May 10 |
| 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 |