Perley, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from -0.3 °C (low) to 10.8 °C (high). Annual precipitation averages 606.5 Millimeters. Perley 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 Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -18.5 °C | -8.8 °C | 17.27 mm |
| February | -16 °C | -5.8 °C | 17.02 mm |
| March | -8.7 °C | 1.3 °C | 25.65 mm |
| April | -0.2 °C | 11.6 °C | 33.27 mm |
| May | 6.8 °C | 19.7 °C | 76.2 mm |
| June | 13.2 °C | 24.8 °C | 105.66 mm |
| July | 15.3 °C | 27.3 °C | 90.68 mm |
| August | 13.6 °C | 26.7 °C | 70.87 mm |
| September | 8.7 °C | 21.9 °C | 72.64 mm |
| October | 1.9 °C | 13.2 °C | 55.63 mm |
| November | -6.2 °C | 3 °C | 20.57 mm |
| December | -13.8 °C | -5.2 °C | 21.08 mm |
| Annual | -0.3 °C | 10.8 °C | 606.54 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| 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 |