Jackson's Arm, Newfoundland and Labrador climate data is summarized below. Average annual temperatures range from 30.8 °F (low) to 42.6 °F (high). Annual precipitation averages 28 Inches. Jackson's Arm is located in USDA Plant Hardiness Zone 4a. The growing season typically runs from the last frost around Jun. 1 - Jun. 10 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -24 °F | -20.5 °F | 177.8 in. |
| February | -24.1 °F | -20.6 °F | 228.6 in. |
| March | -23 °F | -19.5 °F | 431.8 in. |
| April | -19.9 °F | -16.8 °F | 1016 in. |
| May | -17.5 °F | -13.4 °F | 1676.4 in. |
| June | -14.7 °F | -10.2 °F | 1778 in. |
| July | -12 °F | -7.2 °F | 2209.8 in. |
| August | -11.8 °F | -7.4 °F | 2540 in. |
| September | -13.9 °F | -9.9 °F | 2692.4 in. |
| October | -16.3 °F | -13.4 °F | 2540 in. |
| November | -18.9 °F | -16.2 °F | 1727.2 in. |
| December | -21.6 °F | -18.9 °F | 1041.4 in. |
| Annual | 30.8 °F | 42.6 °F | 28 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | Jun. 1 - Jun. 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 4a : -30°F to -25°F |
| Current Drought Conditions | Normal |