Shediac, New Brunswick climate data is summarized below. Average annual temperatures range from 2.1 °C (low) to 10.2 °C (high). Annual precipitation averages 902 Millimeters. Shediac is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -11.62 °C | -3.33 °C | 16 mm |
| February | -11.45 °C | -2.83 °C | 0 mm |
| March | -7.69 °C | 0.88 °C | 25 mm |
| April | -0.44 °C | 7.19 °C | 63 mm |
| May | 5.42 °C | 14.18 °C | 81 mm |
| June | 10.54 °C | 19.07 °C | 111 mm |
| July | 14.98 °C | 23.61 °C | 109 mm |
| August | 14.77 °C | 23.34 °C | 118 mm |
| September | 10.36 °C | 19.38 °C | 100 mm |
| October | 5.46 °C | 13.23 °C | 97 mm |
| November | 0.46 °C | 7.11 °C | 95 mm |
| December | -6.16 °C | 0.61 °C | 87 mm |
| Annual | 2.1 °C | 10.2 °C | 902 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Abnormally Dry |