Holland Landing, Ontario climate data is summarized below. Average annual temperatures range from 2.8 °C (low) to 12.6 °C (high). Annual precipitation averages 805 Millimeters. Holland Landing 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 | -9.98 °C | -2.23 °C | 12 mm |
| February | -11.08 °C | -2.62 °C | 3 mm |
| March | -5.23 °C | 4.05 °C | 44 mm |
| April | 1.38 °C | 12.04 °C | 69 mm |
| May | 7.46 °C | 19.63 °C | 102 mm |
| June | 12.52 °C | 24.15 °C | 110 mm |
| July | 15.16 °C | 26.7 °C | 133 mm |
| August | 14.54 °C | 25.7 °C | 120 mm |
| September | 10.24 °C | 21.24 °C | 73 mm |
| October | 5.2 °C | 14.04 °C | 60 mm |
| November | -0.61 °C | 7.35 °C | 46 mm |
| December | -5.91 °C | 0.56 °C | 33 mm |
| Annual | 2.8 °C | 12.6 °C | 805 mm |
| 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 : -26.1°C to -23.3°C |
| Current Drought Conditions | Normal |