Westville, Nova Scotia climate data is summarized below. Average annual temperatures range from 2.2 °C (low) to 11.5 °C (high). Annual precipitation averages 1084 Millimeters. Westville is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -10.2 °C | -1.54 °C | 31 mm |
| February | -10.06 °C | -1.31 °C | 37 mm |
| March | -7.43 °C | 1.81 °C | 41 mm |
| April | -0.77 °C | 8.38 °C | 75 mm |
| May | 5.14 °C | 15.26 °C | 94 mm |
| June | 10.07 °C | 20.1 °C | 108 mm |
| July | 14.78 °C | 25.18 °C | 93 mm |
| August | 14.52 °C | 24.68 °C | 145 mm |
| September | 10.32 °C | 20.59 °C | 119 mm |
| October | 5.14 °C | 14.17 °C | 114 mm |
| November | 0.52 °C | 8.18 °C | 123 mm |
| December | -5.38 °C | 1.97 °C | 104 mm |
| Annual | 2.2 °C | 11.5 °C | 1084 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Normal |