Saint-Jean-Chrysostome, Quebec climate data is summarized below. Average annual temperatures range from 1 °C (low) to 10.1 °C (high). Annual precipitation averages 892 Millimeters. Saint-Jean-Chrysostome is located in USDA Plant Hardiness Zone 5a. 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 | -14.4 °C | -5.89 °C | 0 mm |
| February | -13.79 °C | -4.97 °C | 0 mm |
| March | -8.71 °C | 0.75 °C | 17 mm |
| April | -0.36 °C | 9.59 °C | 69 mm |
| May | 6.39 °C | 17.51 °C | 94 mm |
| June | 11.71 °C | 22.18 °C | 123 mm |
| July | 14.95 °C | 24.96 °C | 154 mm |
| August | 14.15 °C | 23.95 °C | 130 mm |
| September | 9.35 °C | 19.25 °C | 105 mm |
| October | 3.81 °C | 11.68 °C | 111 mm |
| November | -1.87 °C | 4.98 °C | 74 mm |
| December | -9.71 °C | -3.1 °C | 15 mm |
| Annual | 1 °C | 10.1 °C | 892 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5a : -28.9°C to -26.1°C |
| Current Drought Conditions | Normal |