Bay Bulls, Newfoundland and Labrador climate data is summarized below. Average annual temperatures range from 2.7 °C (low) to 8.4 °C (high). Annual precipitation averages 1009 Millimeters. Bay Bulls is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -5.54 °C | 0.1 °C | 68 mm |
| February | -6.36 °C | -0.89 °C | 72 mm |
| March | -4.81 °C | 0.05 °C | 65 mm |
| April | -1.34 °C | 3.9 °C | 76 mm |
| May | 2.58 °C | 8.44 °C | 79 mm |
| June | 6.6 °C | 13.07 °C | 70 mm |
| July | 11.84 °C | 18.66 °C | 80 mm |
| August | 13.14 °C | 19.55 °C | 72 mm |
| September | 10.11 °C | 16.46 °C | 94 mm |
| October | 6.4 °C | 11.27 °C | 114 mm |
| November | 2.19 °C | 6.96 °C | 111 mm |
| December | -2.18 °C | 2.7 °C | 108 mm |
| Annual | 2.7 °C | 8.4 °C | 1009 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Normal |