Paisley, Ontario climate data is summarized below. Average annual temperatures range from 36.9 °F (low) to 53.8 °F (high). Annual precipitation averages 26.6 Inches. Paisley is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -23.1 °F | -19.2 °F | 0 in. |
| February | -23.9 °F | -19.5 °F | 0 in. |
| March | -20.8 °F | -15.8 °F | 863.6 in. |
| April | -17.3 °F | -11.3 °F | 1727.2 in. |
| May | -13.9 °F | -7.3 °F | 2260.6 in. |
| June | -11.1 °F | -4.7 °F | 2311.4 in. |
| July | -9.8 °F | -3.5 °F | 1600.2 in. |
| August | -9.9 °F | -3.9 °F | 2032 in. |
| September | -12.2 °F | -6.2 °F | 2159 in. |
| October | -14.7 °F | -10 °F | 2590.8 in. |
| November | -17.8 °F | -13.7 °F | 1447.8 in. |
| December | -20.8 °F | -17.5 °F | 177.8 in. |
| Annual | 36.9 °F | 53.8 °F | 26.62 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Normal |