Park Rapids, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from -1 °C (low) to 10.1 °C (high). Annual precipitation averages 675.6 Millimeters. Park Rapids is located in USDA Plant Hardiness Zone 3b. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -18.8 °C | -8.1 °C | 16 mm |
| February | -17.2 °C | -5.1 °C | 16 mm |
| March | -9.5 °C | 1.9 °C | 28.7 mm |
| April | -1.4 °C | 10.5 °C | 50.8 mm |
| May | 5.9 °C | 17.9 °C | 82.3 mm |
| June | 11.9 °C | 23.2 °C | 109.47 mm |
| July | 14.6 °C | 26.3 °C | 101.35 mm |
| August | 13.1 °C | 25.1 °C | 78.49 mm |
| September | 8.3 °C | 20.3 °C | 75.18 mm |
| October | 1.3 °C | 11.6 °C | 66.8 mm |
| November | -6.4 °C | 2.5 °C | 28.19 mm |
| December | -14.1 °C | -5.1 °C | 22.35 mm |
| Annual | -1 °C | 10.1 °C | 675.63 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 3b : -37.2°C to -34.4°C |
| Plant Hardiness Zone - 2012 | Zone 3b : -37.2°C to -34.4°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |