Uxbridge, Ontario climate data is summarized below. Average annual temperatures range from 36.4 °F (low) to 53.3 °F (high). Annual precipitation averages 33.9 Inches. Uxbridge is located in USDA Plant Hardiness Zone 5b. 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 | -23.8 °F | -19.3 °F | 381 in. |
| February | -24.4 °F | -19.6 °F | 127 in. |
| March | -21.2 °F | -15.9 °F | 1346.2 in. |
| April | -17.1 °F | -11.5 °F | 2082.8 in. |
| May | -13.5 °F | -7.3 °F | 2717.8 in. |
| June | -10.8 °F | -4.8 °F | 3048 in. |
| July | -9.4 °F | -3.4 °F | 2641.6 in. |
| August | -9.8 °F | -3.9 °F | 3251.2 in. |
| September | -12.3 °F | -6.4 °F | 2006.6 in. |
| October | -15.1 °F | -10.4 °F | 1879.6 in. |
| November | -18.4 °F | -14.1 °F | 1397 in. |
| December | -21.5 °F | -17.8 °F | 1016 in. |
| Annual | 36.4 °F | 53.3 °F | 33.93 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Normal |