Meaford, Ontario climate data is summarized below. Average annual temperatures range from 39.1 °F (low) to 51.8 °F (high). Annual precipitation averages 26.8 Inches. Meaford is located in USDA Plant Hardiness Zone 6a. 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 | -21.9 °F | -18.7 °F | 0 in. |
| February | -23.4 °F | -19.4 °F | 0 in. |
| March | -20.6 °F | -16.4 °F | 685.8 in. |
| April | -17.2 °F | -12.7 °F | 1574.8 in. |
| May | -14 °F | -9.3 °F | 2159 in. |
| June | -11 °F | -6.5 °F | 2159 in. |
| July | -9 °F | -4.7 °F | 1854.2 in. |
| August | -9 °F | -4.7 °F | 2336.8 in. |
| September | -10.9 °F | -6.7 °F | 2006.6 in. |
| October | -13.6 °F | -10.1 °F | 2311.4 in. |
| November | -16.8 °F | -13.6 °F | 1549.4 in. |
| December | -19.8 °F | -17.1 °F | 635 in. |
| Annual | 39.1 °F | 51.8 °F | 26.76 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Normal |