Brome, Quebec climate data is summarized below. Average annual temperatures range from 35.1 °F (low) to 52.8 °F (high). Annual precipitation averages 16.2 Inches. Brome 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 Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -25 °F | -19.8 °F | 127 in. |
| February | -24.9 °F | -19.7 °F | 0 in. |
| March | -21.8 °F | -16.4 °F | 330.2 in. |
| April | -17.4 °F | -11.5 °F | 965.2 in. |
| May | -13.7 °F | -7.3 °F | 1371.6 in. |
| June | -11 °F | -4.9 °F | 1625.6 in. |
| July | -9.5 °F | -3.5 °F | 1854.2 in. |
| August | -9.9 °F | -4 °F | 1447.8 in. |
| September | -12.4 °F | -6.4 °F | 838.2 in. |
| October | -15.4 °F | -10.4 °F | 990.6 in. |
| November | -18.6 °F | -14.2 °F | 660.4 in. |
| December | -22.4 °F | -18.2 °F | 228.6 in. |
| Annual | 35.1 °F | 52.8 °F | 16.18 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5a : -20°F to -15°F |
| Current Drought Conditions | Normal |