Chapais, Quebec climate data is summarized below. Average annual temperatures range from 23.3 °F (low) to 42.1 °F (high). Annual precipitation averages 28.9 Inches. Chapais is located in USDA Plant Hardiness Zone 2a. The growing season typically runs from the last frost around Jun. 1 - Jun. 10 through the first frost around Sep.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -31 °F | -24.8 °F | 0 in. |
| February | -30.6 °F | -23.8 °F | 0 in. |
| March | -27.7 °F | -20 °F | 0 in. |
| April | -21.7 °F | -15.6 °F | 1117.6 in. |
| May | -16.9 °F | -10 °F | 2260.6 in. |
| June | -13.1 °F | -6.6 °F | 2895.6 in. |
| July | -11.5 °F | -5.8 °F | 3505.2 in. |
| August | -11.9 °F | -6.3 °F | 3276.6 in. |
| September | -14.6 °F | -9.1 °F | 2489.2 in. |
| October | -17.4 °F | -13.5 °F | 2463.8 in. |
| November | -21.3 °F | -17.8 °F | 660.4 in. |
| December | -27.9 °F | -22.7 °F | 0 in. |
| Annual | 23.3 °F | 42.1 °F | 28.93 in. |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | Jun. 1 - Jun. 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 2a : -50°F to -45°F |
| Current Drought Conditions | Normal |