Pinawa, Manitoba climate data is summarized below. Average annual temperatures range from -2.4 °C (low) to 8.7 °C (high). Annual precipitation averages 561 Millimeters. Pinawa is located in USDA Plant Hardiness Zone 3a. 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 | -21.64 °C | -11.27 °C | 0 mm |
| February | -21.02 °C | -8.74 °C | 0 mm |
| March | -11.36 °C | 0.8 °C | 3 mm |
| April | -2.47 °C | 9.99 °C | 35 mm |
| May | 4.49 °C | 17.54 °C | 93 mm |
| June | 11.02 °C | 22.92 °C | 130 mm |
| July | 13.58 °C | 25.88 °C | 101 mm |
| August | 12.72 °C | 24.8 °C | 83 mm |
| September | 8.04 °C | 19.36 °C | 65 mm |
| October | 1.99 °C | 11 °C | 51 mm |
| November | -6.36 °C | 1.01 °C | 0 mm |
| December | -17.46 °C | -9.21 °C | 0 mm |
| Annual | -2.4 °C | 8.7 °C | 561 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 3a : -40°C to -37.2°C |
| Current Drought Conditions | Normal |