Plumas, Manitoba climate data is summarized below. Average annual temperatures range from -2.5 °C (low) to 8.7 °C (high). Annual precipitation averages 485 Millimeters. Plumas 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 | -20.41 °C | -10.23 °C | 0 mm |
| February | -19.77 °C | -9.04 °C | 0 mm |
| March | -11.06 °C | -0.36 °C | 0 mm |
| April | -2.34 °C | 9.11 °C | 25 mm |
| May | 4.66 °C | 17.18 °C | 89 mm |
| June | 11.09 °C | 22.73 °C | 124 mm |
| July | 13.59 °C | 25.7 °C | 86 mm |
| August | 12.24 °C | 25.28 °C | 76 mm |
| September | 7.2 °C | 20.28 °C | 41 mm |
| October | 0.98 °C | 11.71 °C | 44 mm |
| November | -7.51 °C | 1.02 °C | 0 mm |
| December | -18.08 °C | -9.34 °C | 0 mm |
| Annual | -2.5 °C | 8.7 °C | 485 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 |
| Current Drought Conditions | Normal |