Gander, Newfoundland and Labrador climate data is summarized below. Average annual temperatures range from 0.6 °C (low) to 8.4 °C (high). Annual precipitation averages 826 Millimeters. Gander is located in USDA Plant Hardiness Zone 5a. 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 | -9.59 °C | -2.73 °C | 31 mm |
| February | -10.41 °C | -3.16 °C | 31 mm |
| March | -8.41 °C | -1.42 °C | 25 mm |
| April | -3.08 °C | 3.84 °C | 47 mm |
| May | 1.75 °C | 10.79 °C | 72 mm |
| June | 6.65 °C | 16.34 °C | 78 mm |
| July | 11.79 °C | 22.32 °C | 85 mm |
| August | 11.77 °C | 21.63 °C | 96 mm |
| September | 8.03 °C | 16.98 °C | 101 mm |
| October | 3.94 °C | 10.48 °C | 105 mm |
| November | -0.42 °C | 5.23 °C | 96 mm |
| December | -5.33 °C | 0.21 °C | 59 mm |
| Annual | 0.6 °C | 8.4 °C | 826 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 5a : -28.9°C to -26.1°C |
| Current Drought Conditions | Normal |