Orangeville, Ontario climate data is summarized below. Average annual temperatures range from 35.3 °F (low) to 52.1 °F (high). Annual precipitation averages 27.7 Inches. Orangeville 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 | -23.7 °F | -19.7 °F | 127 in. |
| February | -24.4 °F | -20 °F | 0 in. |
| March | -21.3 °F | -16.2 °F | 736.6 in. |
| April | -17.8 °F | -11.9 °F | 1549.4 in. |
| May | -14.2 °F | -7.7 °F | 2667 in. |
| June | -11.4 °F | -5.3 °F | 2717.8 in. |
| July | -10 °F | -3.9 °F | 2692.4 in. |
| August | -10.4 °F | -4.4 °F | 2921 in. |
| September | -12.6 °F | -6.7 °F | 1625.6 in. |
| October | -15.4 °F | -10.6 °F | 1422.4 in. |
| November | -18.6 °F | -14.4 °F | 863.6 in. |
| December | -21.5 °F | -18.2 °F | 558.8 in. |
| Annual | 35.3 °F | 52.1 °F | 27.71 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 5a : -20°F to -15°F |
| Current Drought Conditions | Normal |