Burlington, Ontario climate data is summarized below. Average annual temperatures range from 41.4 °F (low) to 56 °F (high). Annual precipitation averages 36.9 Inches. Burlington is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -21.6 °F | -18 °F | 609.6 in. |
| February | -22.3 °F | -18.3 °F | 914.4 in. |
| March | -19.2 °F | -14.8 °F | 2082.8 in. |
| April | -16.1 °F | -11.2 °F | 2489.2 in. |
| May | -12.7 °F | -7.3 °F | 2565.4 in. |
| June | -9.6 °F | -4.5 °F | 2362.2 in. |
| July | -8.1 °F | -2.8 °F | 2413 in. |
| August | -8.2 °F | -3.2 °F | 2667 in. |
| September | -10.6 °F | -5.5 °F | 2006.6 in. |
| October | -13.7 °F | -9.3 °F | 2209.8 in. |
| November | -16.9 °F | -13 °F | 1778 in. |
| December | -19.5 °F | -16.4 °F | 1727.2 in. |
| Annual | 41.4 °F | 56 °F | 36.94 in. |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Normal |