Appleton, Newfoundland and Labrador climate data is summarized below. Average annual temperatures range from 32.9 °F (low) to 46.9 °F (high). Annual precipitation averages 31.8 Inches. Appleton 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 | -23.2 °F | -19.4 °F | 685.8 in. |
| February | -23.6 °F | -19.6 °F | 762 in. |
| March | -22.5 °F | -18.6 °F | 609.6 in. |
| April | -19.5 °F | -15.7 °F | 1168.4 in. |
| May | -16.8 °F | -11.8 °F | 1854.2 in. |
| June | -14.1 °F | -8.7 °F | 1955.8 in. |
| July | -11.2 °F | -5.4 °F | 2159 in. |
| August | -11.3 °F | -5.8 °F | 2438.4 in. |
| September | -13.4 °F | -8.4 °F | 2540 in. |
| October | -15.6 °F | -12 °F | 2616.2 in. |
| November | -18.1 °F | -15 °F | 2362.2 in. |
| December | -20.8 °F | -17.8 °F | 1371.6 in. |
| Annual | 32.9 °F | 46.9 °F | 31.81 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 5a : -20°F to -15°F |
| Current Drought Conditions | Normal |