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Weather & Climate in Heron Bay, NB
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Heron Bay has a cool climate with an average annual temperature of 43°F (6°C). Winters average 20°F in January while summers reach 70°F in July. The area gets 243 sunny days per year, above the national average. Annual precipitation totals 53.9 inches (wetter than the 38-inch national average). The area receives 86.5 inches of snow annually, making winter weather a significant factor for residents. The city sits at an elevation of 39 feet.
Temperature
20°F Jan (-6°C)
70°F Jul (21°C)
| Annual Average | 42.7°F |
| 21% below US avg | |
| January Average | 20°F (-6°C) |
| July Average | 70°F (21°C) |
| Sunny Days | 243 days/yr |
Geography
| Elevation | 39 ft (12 m) |
| Area | 97.6 sq mi (252.9 km²) |
| Population Density | 57/sq mi |
| Coordinates | 48.0219°N, 66.3960°W |
| Timezone | America/Moncton |
Precipitation & Snow
Air Quality
Earthquake History
34 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.2.
| Nov 27, 2012 | Gaspe Peninsula, Quebec, Canada | M4.2 | 113 km | 17 km |
| 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 | 115 km | 5 km |
| Jul 14, 1994 | 83 km W of Miramichi, Canada | M3.8 | 115 km | 5 km |
| Jan 5, 2005 | 81 km W of Miramichi, Canada | M3.7 | 113 km | 5 km |
| Mar 28, 1994 | 56 km ESE of Sainte-Anne-des-Monts, Canada | M3.6 | 118 km | 18 km |
| Oct 18, 2003 | 48 km ESE of Hamlin, Maine | M3.5 | 134 km | 18 km |
| Dec 12, 1990 | 83 km W of Miramichi, Canada | M3.5 | 115 km | 5 km |
| Apr 28, 2014 | 81 km W of Miramichi, Canada | M3.4 | 114 km | 5 km |
| Mar 30, 2012 | 44 km SW of Bathurst, Canada | M3.4 | 78 km | 5 km |
| Apr 23, 1991 | 83 km W of Miramichi, Canada | M3.3 | 115 km | 5 km |
| Aug 28, 2013 | 84 km W of Miramichi, Canada | M3.2 | 116 km | 5 km |
| Jul 20, 2007 | 28 km W of Miramichi, Canada | M3.2 | 113 km | 5 km |
| Aug 21, 2015 | 63 km SW of Bathurst, Canada | M3.0 | 87 km | 5 km |
| Jan 2, 2013 | 75 km W of Miramichi, Canada | M3.0 | 112 km | 5 km |
| Mar 7, 2019 | 15 km WSW of Miramichi, Canada | M2.9 | 129 km | 10 km |
| Jul 18, 2010 | 84 km W of Miramichi, Canada | M2.9 | 119 km | 5 km |
| Jul 10, 2014 | 73 km ENE of Hamlin, Maine | M2.8 | 91 km | 4 km |
| Jul 3, 2010 | 83 km W of Miramichi, Canada | M2.8 | 116 km | 5 km |
| Jan 19, 2015 | 62 km WSW of Bathurst, Canada | M2.8 | 78 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Hurricane History
1 hurricane (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 1.
| Year | Name | Category | Max Wind | Closest |
| 2003 | Juan | Category 1 | 75 mph | 299 km |
Source: NOAA IBTrACS (Category 1+, 1980-2026).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 20°F (-6°C) | 3.2 in | |
| February | 12°F (-11°C) | 2.3 in | Coldest, Driest |
| March | 23°F (-5°C) | 2.9 in | |
| April | 35°F (2°C) | 3.0 in | |
| May | 48°F (9°C) | 3.6 in | |
| June | 58°F (14°C) | 3.6 in | |
| July | 70°F (21°C) | 4.1 in | Warmest, Wettest |
| August | 62°F (17°C) | 4.0 in | |
| September | 53°F (12°C) | 3.5 in | |
| October | 43°F (6°C) | 3.6 in | |
| November | 31°F (-0°C) | 3.5 in | |
| December | 17°F (-8°C) | 3.5 in |
Heron Bay has a seasonal temperature swing of 58°F / from 12°F in February to 70°F in July. Total annual precipitation is 40.9 inches, with July being the wettest month (4.1") and February the driest (2.3").