Whapmagoostui, Quebec climate data is summarized below. Average annual temperatures range from -7.1 °C (low) to -0.1 °C (high). Annual precipitation averages 517 Millimeters. Whapmagoostui is located in USDA Plant Hardiness Zone 0b. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -24.79 °C | -17.58 °C | 0 mm |
| February | -27.56 °C | -17.69 °C | 0 mm |
| March | -22.98 °C | -11.88 °C | 0 mm |
| April | -12.07 °C | -3.17 °C | 0 mm |
| May | -3.29 °C | 3.3 °C | 35 mm |
| June | 3.23 °C | 11.82 °C | 60 mm |
| July | 7.36 °C | 14.75 °C | 116 mm |
| August | 8.88 °C | 15.23 °C | 110 mm |
| September | 5.46 °C | 10.94 °C | 110 mm |
| October | 1.55 °C | 5.51 °C | 76 mm |
| November | -5.05 °C | -1.25 °C | 10 mm |
| December | -16.38 °C | -10.64 °C | 0 mm |
| Annual | -7.1 °C | -0.1 °C | 517 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | |
| Current Drought Conditions | Normal |