Brandon, Manitoba climate data is summarized below. Average annual temperatures range from -3 °C (low) to 8.5 °C (high). Annual precipitation averages 489 Millimeters. Brandon 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.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -20.52 °C | -10.54 °C | 0 mm |
| February | -20 °C | -9.29 °C | 0 mm |
| March | -11.39 °C | -0.15 °C | 7 mm |
| April | -2.45 °C | 9.48 °C | 24 mm |
| May | 4.24 °C | 17.13 °C | 67 mm |
| June | 10.5 °C | 22.34 °C | 111 mm |
| July | 12.84 °C | 25 °C | 124 mm |
| August | 11.16 °C | 24.95 °C | 91 mm |
| September | 6.37 °C | 20.26 °C | 40 mm |
| October | 0.14 °C | 11.56 °C | 25 mm |
| November | -8.46 °C | 0.86 °C | 0 mm |
| December | -18.37 °C | -9.75 °C | 0 mm |
| Annual | -3 °C | 8.5 °C | 489 mm |
| Average First Frost Date | Sep.11 - Sep. 20 |
| 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 |
| Current Drought Conditions | Abnormally Dry |