Bejou, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from -1.3 °C (low) to 10 °C (high). Annual precipitation averages 646.7 Millimeters. Bejou 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 | -19 °C | -8.9 °C | 22.61 mm |
| February | -17.4 °C | -6.2 °C | 18.03 mm |
| March | -9.2 °C | 1.3 °C | 24.89 mm |
| April | -1.2 °C | 10.6 °C | 37.08 mm |
| May | 5.8 °C | 18.6 °C | 78.99 mm |
| June | 12 °C | 23.7 °C | 114.05 mm |
| July | 13.9 °C | 26.1 °C | 90.42 mm |
| August | 12.7 °C | 25.7 °C | 77.22 mm |
| September | 7.7 °C | 20.7 °C | 75.18 mm |
| October | 1.1 °C | 12 °C | 59.18 mm |
| November | -6.9 °C | 2.2 °C | 24.64 mm |
| December | -14.7 °C | -5.4 °C | 24.38 mm |
| Annual | -1.3 °C | 10 °C | 646.67 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 3b : -37.2°C to -34.4°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |