Brighton, Newfoundland and Labrador climate data is summarized below. Average annual temperatures range from 34.6 °F (low) to 43.5 °F (high). Annual precipitation averages 31.3 Inches. Brighton is located in USDA Plant Hardiness Zone 4b. The growing season typically runs from the last frost around Jun. 1 - Jun. 10 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -22.3 °F | -19.5 °F | 457.2 in. |
| February | -22.5 °F | -19.7 °F | 533.4 in. |
| March | -21.5 °F | -18.9 °F | 482.6 in. |
| April | -19.1 °F | -16.8 °F | 1219.2 in. |
| May | -16.9 °F | -14.1 °F | 1905 in. |
| June | -14.1 °F | -11 °F | 1955.8 in. |
| July | -11.3 °F | -7.9 °F | 2235.2 in. |
| August | -10.7 °F | -7.5 °F | 2565.4 in. |
| September | -12.6 °F | -9.5 °F | 2717.8 in. |
| October | -15 °F | -12.6 °F | 2667 in. |
| November | -17.6 °F | -15.3 °F | 2108.2 in. |
| December | -20.3 °F | -18 °F | 1320.8 in. |
| Annual | 34.6 °F | 43.5 °F | 31.26 in. |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | Jun. 1 - Jun. 10 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 4b : -25°F to -20°F |
| Current Drought Conditions | Normal |