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Weather & Climate in Grand Lake, NB
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Grand Lake has a cool climate with an average annual temperature of 45°F (7°C). Winters average 26°F in January while summers reach 72°F in July. The area gets 233 sunny days per year, above the national average. Annual precipitation totals 53.2 inches (wetter than the 38-inch national average). The area receives 70.0 inches of snow annually, making winter weather a significant factor for residents. The city sits at an elevation of 75 feet.
Temperature
26°F Jan (-4°C)
72°F Jul (22°C)
| Annual Average | 45.4°F |
| 16% below US avg | |
| January Average | 26°F (-4°C) |
| July Average | 72°F (22°C) |
| Sunny Days | 233 days/yr |
Geography
| Elevation | 75 ft (23 m) |
| Area | 265.1 sq mi (686.7 km²) |
| Population Density | 22/sq mi |
| Coordinates | 46.1126°N, 65.9568°W |
| Timezone | America/Moncton |
Precipitation & Snow
Air Quality
Earthquake History
56 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 | 113 km | 5 km |
| May 6, 1995 | 83 km W of Miramichi, Canada | M3.9 | 110 km | 5 km |
| Jul 14, 1994 | 83 km W of Miramichi, Canada | M3.8 | 110 km | 5 km |
| Jan 5, 2005 | 81 km W of Miramichi, Canada | M3.7 | 110 km | 5 km |
| Jun 1, 2006 | 19 km NE of Florenceville-Bristol, Canada | M3.6 | 126 km | 5 km |
| Aug 27, 2015 | 27 km N of Noonan, Canada | M3.6 | 50 km | 5 km |
| Mar 8, 2009 | 72 km NNE of Noonan, Canada | M3.6 | 60 km | 5 km |
| Dec 12, 1990 | 83 km W of Miramichi, Canada | M3.5 | 110 km | 5 km |
| Oct 18, 2003 | 48 km ESE of Hamlin, Maine | M3.5 | 132 km | 18 km |
| Mar 30, 2012 | 44 km SW of Bathurst, Canada | M3.4 | 138 km | 5 km |
| Apr 28, 2014 | 81 km W of Miramichi, Canada | M3.4 | 109 km | 5 km |
| Jan 10, 2019 | 22 km NW of Saint John, Canada | M3.4 | 85 km | 5 km |
| Feb 9, 2016 | 7 km NE of Vanceboro, Maine | M3.3 | 122 km | 1 km |
| Apr 23, 1991 | 83 km W of Miramichi, Canada | M3.3 | 110 km | 5 km |
| Mar 8, 2009 | 71 km NNE of Noonan, Canada | M3.3 | 57 km | 5 km |
| Jul 20, 2007 | 28 km W of Miramichi, Canada | M3.2 | 107 km | 5 km |
| Mar 21, 2013 | 60 km NNE of Noonan, Canada | M3.2 | 38 km | 5 km |
| Aug 28, 2013 | 84 km W of Miramichi, Canada | M3.2 | 110 km | 5 km |
| Jul 3, 2024 | 67 km SW of Miramichi, Canada | M3.1 | 52 km | 12 km |
| Oct 15, 2003 | 11 km E of Saint Andrews, Canada | M3.1 | 137 km | 18 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Hurricane History
4 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 2.
| Year | Name | Category | Max Wind | Closest |
| 2010 | Earl | Category 1 | 75 mph | 224 km |
| 2008 | Kyle | Category 1 | 75 mph | 258 km |
| 2003 | Juan | Category 2 | 98 mph | 167 km |
| 1996 | Hortense | Category 1 | 81 mph | 290 km |
Source: NOAA IBTrACS (Category 1+, 1980-2026).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 26°F (-4°C) | 3.6 in | |
| February | 17°F (-8°C) | 3.0 in | Coldest, Driest |
| March | 27°F (-3°C) | 3.3 in | |
| April | 39°F (4°C) | 3.2 in | |
| May | 51°F (10°C) | 3.7 in | |
| June | 60°F (16°C) | 3.3 in | |
| July | 72°F (22°C) | 3.5 in | Warmest |
| August | 65°F (19°C) | 3.3 in | |
| September | 57°F (14°C) | 3.4 in | |
| October | 46°F (8°C) | 3.8 in | |
| November | 35°F (2°C) | 3.9 in | Wettest |
| December | 22°F (-6°C) | 3.9 in |
Grand Lake has a seasonal temperature swing of 54°F / from 17°F in February to 72°F in July. Total annual precipitation is 41.7 inches, with November being the wettest month (3.9") and February the driest (3.0").