Frazee, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from -0.5 °C (low) to 10.3 °C (high). Annual precipitation averages 677.7 Millimeters. Frazee is located in USDA Plant Hardiness Zone 4a. 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 | -18.2 °C | -8 °C | 16.76 mm |
| February | -16.6 °C | -5.3 °C | 15.49 mm |
| March | -8.7 °C | 1.9 °C | 26.16 mm |
| April | -0.8 °C | 10.9 °C | 48.26 mm |
| May | 6.4 °C | 18.4 °C | 85.34 mm |
| June | 12.6 °C | 23.6 °C | 109.98 mm |
| July | 15.1 °C | 26.2 °C | 103.89 mm |
| August | 13.6 °C | 25.3 °C | 80.01 mm |
| September | 8.9 °C | 20.7 °C | 77.22 mm |
| October | 1.7 °C | 12 °C | 69.09 mm |
| November | -6.1 °C | 2.7 °C | 24.64 mm |
| December | -13.7 °C | -4.8 °C | 20.83 mm |
| Annual | -0.5 °C | 10.3 °C | 677.67 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 4a : -34.4°C to -31.7°C |
| Plant Hardiness Zone - 2012 | Zone 3b : -37.2°C to -34.4°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |