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Weather & Climate in Rocky Harbour, NL
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Rocky Harbour has a cool climate with an average annual temperature of 38°F (3°C). Winters average 18°F in January while summers reach 59°F in July. The area gets 238 sunny days per year, above the national average. Annual precipitation totals 53.7 inches (wetter than the 38-inch national average). The area receives 27.5 inches of snow annually, a moderate snowfall amount. The city sits at an elevation of 299 feet.
Temperature
18°F Jan (-8°C)
59°F Jul (15°C)
| Annual Average | 37.6°F |
| 30% below US avg | |
| January Average | 18°F (-8°C) |
| July Average | 59°F (15°C) |
| Sunny Days | 238 days/yr |
Geography
| Elevation | 299 ft (91 m) |
| Area | 4.7 sq mi (12.1 km²) |
| Population Density | 201/sq mi |
| Coordinates | 49.6000°N, 57.9150°W |
| Timezone | America/St_Johns |
Precipitation & Snow
Air Quality
Hurricane History
1 hurricane (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 1.
| Year | Name | Category | Max Wind | Closest |
| 2002 | Gustav | Category 1 | 75 mph | 228 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 18°F (-8°C) | 6.1 in | Wettest |
| February | 16°F (-9°C) | 4.3 in | Coldest |
| March | 23°F (-5°C) | 3.5 in | |
| April | 33°F (1°C) | 2.9 in | Driest |
| May | 42°F (6°C) | 3.2 in | |
| June | 51°F (11°C) | 4.6 in | |
| July | 59°F (15°C) | 3.7 in | |
| August | 59°F (15°C) | 4.9 in | Warmest |
| September | 51°F (11°C) | 4.7 in | |
| October | 42°F (5°C) | 5.2 in | |
| November | 33°F (1°C) | 5.0 in | |
| December | 24°F (-4°C) | 5.7 in |
Rocky Harbour has a seasonal temperature swing of 43°F / from 16°F in February to 59°F in August. Total annual precipitation is 53.7 inches, with January being the wettest month (6.1") and April the driest (2.9").