Old Perlican, Newfoundland and Labrador climate data is summarized below. Average annual temperatures range from 3.5 °C (low) to 6.9 °C (high). Annual precipitation averages 942 Millimeters. Old Perlican 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 | -4.5 °C | -0.11 °C | 56 mm |
| February | -5.1 °C | -1.06 °C | 52 mm |
| March | -3.79 °C | -0.39 °C | 49 mm |
| April | -0.72 °C | 2.16 °C | 64 mm |
| May | 2.88 °C | 5.88 °C | 77 mm |
| June | 6.96 °C | 9.98 °C | 68 mm |
| July | 11.96 °C | 15.41 °C | 81 mm |
| August | 13.93 °C | 17.02 °C | 83 mm |
| September | 11.34 °C | 14.7 °C | 101 mm |
| October | 7.45 °C | 10.54 °C | 109 mm |
| November | 3.06 °C | 6.58 °C | 103 mm |
| December | -1.34 °C | 2.6 °C | 99 mm |
| Annual | 3.5 °C | 6.9 °C | 942 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 |