Meaford, Ontario climate data is summarized below. Average annual temperatures range from 3.9 °C (low) to 11 °C (high). Annual precipitation averages 680 Millimeters. 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 | -7.43 °C | -1.74 °C | 0 mm |
| February | -10.14 °C | -3 °C | 0 mm |
| March | -5.16 °C | 2.45 °C | 27 mm |
| April | 1.11 °C | 9.23 °C | 62 mm |
| May | 6.72 °C | 15.27 °C | 85 mm |
| June | 12.13 °C | 20.27 °C | 85 mm |
| July | 15.8 °C | 23.52 °C | 73 mm |
| August | 15.84 °C | 23.53 °C | 92 mm |
| September | 12.42 °C | 20.03 °C | 79 mm |
| October | 7.57 °C | 13.91 °C | 91 mm |
| November | 1.78 °C | 7.52 °C | 61 mm |
| December | -3.58 °C | 1.17 °C | 25 mm |
| Annual | 3.9 °C | 11 °C | 680 mm |
| 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 : -23.3°C to -20.6°C |
| Current Drought Conditions | Normal |