Haliburton, Ontario climate data is summarized below. Average annual temperatures range from -0.5 °C (low) to 10.9 °C (high). Annual precipitation averages 638 Millimeters. Haliburton is located in USDA Plant Hardiness Zone 4b. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Sep.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -14.66 °C | -4.52 °C | 0 mm |
| February | -16.03 °C | -4.35 °C | 0 mm |
| March | -9.27 °C | 2.09 °C | 20 mm |
| April | -1.74 °C | 10.44 °C | 62 mm |
| May | 5.12 °C | 18.79 °C | 72 mm |
| June | 10.34 °C | 23.06 °C | 80 mm |
| July | 12.55 °C | 25.27 °C | 96 mm |
| August | 11.85 °C | 24.17 °C | 86 mm |
| September | 7.29 °C | 19.68 °C | 84 mm |
| October | 2.61 °C | 12.3 °C | 90 mm |
| November | -3.59 °C | 5.29 °C | 48 mm |
| December | -10.08 °C | -2.01 °C | 0 mm |
| Annual | -0.5 °C | 10.9 °C | 638 mm |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 4b : -31.7°C to -28.9°C |
| Current Drought Conditions | Normal |