Shediac, New Brunswick climate data is summarized below. Average annual temperatures range from 35.7 °F (low) to 50.4 °F (high). Annual precipitation averages 35.5 Inches. 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 | -24.2 °F | -19.6 °F | 406.4 in. |
| February | -24.1 °F | -19.4 °F | 0 in. |
| March | -22.1 °F | -17.3 °F | 635 in. |
| April | -18 °F | -13.8 °F | 1600.2 in. |
| May | -14.8 °F | -9.9 °F | 2057.4 in. |
| June | -11.9 °F | -7.2 °F | 2819.4 in. |
| July | -9.5 °F | -4.7 °F | 2768.6 in. |
| August | -9.6 °F | -4.8 °F | 2997.2 in. |
| September | -12 °F | -7 °F | 2540 in. |
| October | -14.7 °F | -10.4 °F | 2463.8 in. |
| November | -17.5 °F | -13.8 °F | 2413 in. |
| December | -21.2 °F | -17.4 °F | 2209.8 in. |
| Annual | 35.7 °F | 50.4 °F | 35.52 in. |
| 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 : -15°F to -10°F |
| Current Drought Conditions | Abnormally Dry |