All Countries
Weather & Climate in Mary's Harbour, NL
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Mary's Harbour has a cool climate with an average annual temperature of 34°F (1°C). Winters average 9°F in January while summers reach 57°F in July. The area gets 267 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 38.2 inches. The area receives 18.0 inches of snow annually, a moderate snowfall amount. The city sits at an elevation of 33 feet.
Temperature
9°F Jan (-13°C)
57°F Jul (14°C)
| Annual Average | 33.8°F |
| 37% below US avg | |
| January Average | 9°F (-13°C) |
| July Average | 57°F (14°C) |
| Sunny Days | 267 days/yr |
Geography
| Elevation | 33 ft (10 m) |
| Area | 13.2 sq mi (34.2 km²) |
| Population Density | 24/sq mi |
| Coordinates | 52.3055°N, 55.8370°W |
| Timezone | America/St_Johns |
Precipitation & Snow
Air Quality
Tsunami History
1 tsunami recorded within 500 km.
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1848 | FISHING SHIPS HARBOUR, NEWFOUNDLAND | Meteorological | — | — | 35 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 9°F (-13°C) | 3.0 in | Coldest |
| February | 11°F (-12°C) | 3.2 in | |
| March | 20°F (-7°C) | 2.8 in | |
| April | 30°F (-1°C) | 2.1 in | Driest |
| May | 39°F (4°C) | 2.8 in | |
| June | 49°F (10°C) | 3.8 in | Wettest |
| July | 57°F (14°C) | 3.5 in | Warmest |
| August | 57°F (14°C) | 3.6 in | |
| September | 49°F (10°C) | 2.9 in | |
| October | 39°F (4°C) | 3.7 in | |
| November | 29°F (-2°C) | 3.4 in | |
| December | 18°F (-8°C) | 3.5 in |
Mary's Harbour has a seasonal temperature swing of 48°F / from 9°F in January to 57°F in July. Total annual precipitation is 38.2 inches, with June being the wettest month (3.8") and April the driest (2.1").