Red Lake Falls, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from -1.4 °C (low) to 9.6 °C (high). Annual precipitation averages 605 Millimeters. Red Lake Falls is located in USDA Plant Hardiness Zone 3b. 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 | -19.7 °C | -9.7 °C | 16 mm |
| February | -18.1 °C | -7.3 °C | 14.99 mm |
| March | -9.8 °C | 0.6 °C | 22.35 mm |
| April | -1.2 °C | 10.4 °C | 32.51 mm |
| May | 5.9 °C | 18.4 °C | 75.95 mm |
| June | 12.3 °C | 23.7 °C | 105.41 mm |
| July | 14.2 °C | 25.9 °C | 90.42 mm |
| August | 12.7 °C | 25.8 °C | 80.77 mm |
| September | 7.8 °C | 20.6 °C | 71.12 mm |
| October | 0.9 °C | 11.8 °C | 53.09 mm |
| November | -7.3 °C | 1.8 °C | 22.35 mm |
| December | -14.9 °C | -6.3 °C | 20.07 mm |
| Annual | -1.4 °C | 9.6 °C | 605.03 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 3b : -37.2°C to -34.4°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 |