Dalhousie, New Brunswick climate data is summarized below. Average annual temperatures range from 0.2 °C (low) to 9 °C (high). Annual precipitation averages 767 Millimeters. Dalhousie is located in USDA Plant Hardiness Zone 4a. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Sep.1 - Sep. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -14.94 °C | -6.04 °C | 0 mm |
| February | -13.95 °C | -4.72 °C | 0 mm |
| March | -11.41 °C | -0.9 °C | 0 mm |
| April | -2.9 °C | 5.56 °C | 49 mm |
| May | 4.77 °C | 14.31 °C | 85 mm |
| June | 10.43 °C | 19.8 °C | 111 mm |
| July | 14.29 °C | 23.79 °C | 129 mm |
| August | 13.91 °C | 23.3 °C | 116 mm |
| September | 9.13 °C | 18.65 °C | 99 mm |
| October | 4.01 °C | 11.63 °C | 100 mm |
| November | -1.38 °C | 4.92 °C | 63 mm |
| December | -9.82 °C | -2.52 °C | 15 mm |
| Annual | 0.2 °C | 9 °C | 767 mm |
| Average First Frost Date | Sep.1 - Sep. 10 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 4a : -34.4°C to -31.7°C |
| Current Drought Conditions | Normal |