Saint-Prosper, Quebec climate data is summarized below. Average annual temperatures range from 30.5 °F (low) to 49.4 °F (high). Annual precipitation averages 9.6 Inches. Saint-Prosper is located in USDA Plant Hardiness Zone 4a. The growing season typically runs from the last frost around Jun. 1 - Jun. 10 through the first frost around Sep.1 - Sep. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -26.8 °F | -21.1 °F | 0 in. |
| February | -26.4 °F | -20.6 °F | 0 in. |
| March | -23.6 °F | -17.6 °F | 0 in. |
| April | -19.2 °F | -13.3 °F | 304.8 in. |
| May | -15.1 °F | -8.3 °F | 685.8 in. |
| June | -12.2 °F | -5.8 °F | 889 in. |
| July | -10.5 °F | -4.2 °F | 1447.8 in. |
| August | -11.1 °F | -4.7 °F | 1244.6 in. |
| September | -13.6 °F | -7.2 °F | 635 in. |
| October | -16.5 °F | -11.3 °F | 584.2 in. |
| November | -19.6 °F | -15.2 °F | 381 in. |
| December | -24.1 °F | -19.5 °F | 0 in. |
| Annual | 30.5 °F | 49.4 °F | 9.56 in. |
| Average First Frost Date | Sep.1 - Sep. 10 |
| Average Last Frost Date | Jun. 1 - Jun. 10 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 4a : -30°F to -25°F |
| Current Drought Conditions | Abnormally Dry |