Saint-Quentin, New Brunswick climate data is summarized below. Average annual temperatures range from 29.4 °F (low) to 47.2 °F (high). Annual precipitation averages 25.3 Inches. Saint-Quentin is located in USDA Plant Hardiness Zone 3b. 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 | -27.2 °F | -21.8 °F | 0 in. |
| February | -26.4 °F | -21.1 °F | 0 in. |
| March | -24.4 °F | -18.5 °F | 50.8 in. |
| April | -19.9 °F | -14.8 °F | 914.4 in. |
| May | -15.7 °F | -9.4 °F | 1600.2 in. |
| June | -12.8 °F | -6.6 °F | 2768.6 in. |
| July | -10.7 °F | -4.7 °F | 3352.8 in. |
| August | -11.1 °F | -5 °F | 2616.2 in. |
| September | -13.8 °F | -7.8 °F | 1828.8 in. |
| October | -16.7 °F | -11.8 °F | 1676.4 in. |
| November | -19.8 °F | -15.9 °F | 1371.6 in. |
| December | -24.5 °F | -19.9 °F | 101.6 in. |
| Annual | 29.4 °F | 47.2 °F | 25.25 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 3b : -35°F to -30°F |
| Current Drought Conditions | Normal |