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Weather & Climate in Grand Falls, NB
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Grand Falls has a cool climate with an average annual temperature of 38°F (3°C). Winters average 7°F in January while summers reach 64°F in July. The area gets 261 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 41.4 inches. The area receives 15.6 inches of snow annually, a moderate snowfall amount. The city sits at an elevation of 515 feet.
Temperature
7°F Jan (-14°C)
64°F Jul (18°C)
| Annual Average | 37.7°F |
| 30% below US avg | |
| January Average | 7°F (-14°C) |
| July Average | 64°F (18°C) |
| Sunny Days | 261 days/yr |
Geography
| Elevation | 515 ft (157 m) |
| Area | 61.0 sq mi (158.1 km²) |
| Population Density | 18/sq mi |
| Coordinates | 47.0461°N, 67.7418°W |
| Timezone | America/Moncton |
Precipitation & Snow
Air Quality
Earthquake History
43 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.0.
| Jul 15, 1998 | 84 km W of Miramichi, Canada | M4.0 | 86 km | 5 km |
| May 6, 1995 | 83 km W of Miramichi, Canada | M3.9 | 87 km | 5 km |
| Jul 14, 2006 | 13 km SW of Winterville, Maine | M3.9 | 74 km | 14 km |
| Jul 14, 1994 | 83 km W of Miramichi, Canada | M3.8 | 87 km | 5 km |
| Jan 5, 2005 | 81 km W of Miramichi, Canada | M3.7 | 89 km | 5 km |
| Jun 1, 2006 | 19 km NE of Florenceville-Bristol, Canada | M3.6 | 56 km | 5 km |
| Aug 27, 2015 | 27 km N of Noonan, Canada | M3.6 | 128 km | 5 km |
| Mar 8, 2009 | 72 km NNE of Noonan, Canada | M3.6 | 120 km | 5 km |
| Dec 12, 1990 | 83 km W of Miramichi, Canada | M3.5 | 87 km | 5 km |
| Mar 30, 1990 | 6 km WSW of Grand Isle, Maine | M3.5 | 45 km | 18 km |
| Oct 18, 2003 | 48 km ESE of Hamlin, Maine | M3.5 | 44 km | 18 km |
| Apr 28, 2014 | 81 km W of Miramichi, Canada | M3.4 | 89 km | 5 km |
| Mar 30, 2012 | 44 km SW of Bathurst, Canada | M3.4 | 129 km | 5 km |
| Mar 8, 2009 | 71 km NNE of Noonan, Canada | M3.3 | 125 km | 5 km |
| Apr 23, 1991 | 83 km W of Miramichi, Canada | M3.3 | 87 km | 5 km |
| Aug 28, 2013 | 84 km W of Miramichi, Canada | M3.2 | 86 km | 5 km |
| Mar 21, 2013 | 60 km NNE of Noonan, Canada | M3.2 | 141 km | 5 km |
| Jul 20, 2007 | 28 km W of Miramichi, Canada | M3.2 | 141 km | 5 km |
| Jul 3, 2024 | 67 km SW of Miramichi, Canada | M3.1 | 137 km | 12 km |
| Jan 2, 2013 | 75 km W of Miramichi, Canada | M3.0 | 94 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 7°F (-14°C) | 3.2 in | Coldest |
| February | 10°F (-12°C) | 2.4 in | Driest |
| March | 22°F (-6°C) | 2.7 in | |
| April | 36°F (2°C) | 2.7 in | |
| May | 49°F (10°C) | 3.4 in | |
| June | 59°F (15°C) | 3.7 in | |
| July | 64°F (18°C) | 4.5 in | Warmest, Wettest |
| August | 63°F (17°C) | 4.1 in | |
| September | 53°F (12°C) | 3.9 in | |
| October | 43°F (6°C) | 3.5 in | |
| November | 31°F (-1°C) | 3.7 in | |
| December | 16°F (-9°C) | 3.5 in |
Grand Falls has a seasonal temperature swing of 58°F / from 7°F in January to 64°F in July. Total annual precipitation is 41.4 inches, with July being the wettest month (4.5") and February the driest (2.4").