Lakefield, Ontario climate data is summarized below. Average annual temperatures range from 1 °C (low) to 11.9 °C (high). Annual precipitation averages 508 Millimeters. Lakefield 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 | -12.63 °C | -3.24 °C | 4 mm |
| February | -13.51 °C | -3.16 °C | 0 mm |
| March | -7.48 °C | 3.68 °C | 21 mm |
| April | -0.09 °C | 11.79 °C | 36 mm |
| May | 6.2 °C | 19.35 °C | 58 mm |
| June | 11.36 °C | 23.59 °C | 99 mm |
| July | 13.71 °C | 26.06 °C | 89 mm |
| August | 13.01 °C | 25.07 °C | 87 mm |
| September | 8.21 °C | 20.66 °C | 49 mm |
| October | 3.49 °C | 13.28 °C | 35 mm |
| November | -2.56 °C | 6.43 °C | 20 mm |
| December | -8.13 °C | -0.68 °C | 10 mm |
| Annual | 1 °C | 11.9 °C | 508 mm |
| 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 : -26.1°C to -23.3°C |
| Current Drought Conditions | Normal |