McIver's, Newfoundland and Labrador climate data is summarized below. Average annual temperatures range from 33.4 °F (low) to 43.3 °F (high). Annual precipitation averages 34.6 Inches. McIver's 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. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -22.9 °F | -19.9 °F | 584.2 in. |
| February | -23.3 °F | -20.2 °F | 304.8 in. |
| March | -22.4 °F | -19.2 °F | 812.8 in. |
| April | -19.5 °F | -16.7 °F | 1371.6 in. |
| May | -16.8 °F | -13.3 °F | 1981.2 in. |
| June | -14 °F | -10.3 °F | 1727.2 in. |
| July | -11.4 °F | -7.7 °F | 2387.6 in. |
| August | -10.9 °F | -7.5 °F | 2819.4 in. |
| September | -12.8 °F | -9.8 °F | 3124.2 in. |
| October | -15.4 °F | -12.9 °F | 2921 in. |
| November | -18 °F | -15.7 °F | 2667 in. |
| December | -20.8 °F | -18.3 °F | 1625.6 in. |
| Annual | 33.4 °F | 43.3 °F | 34.61 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5a : -20°F to -15°F |
| Current Drought Conditions | Normal |