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Weather & Climate in Gananoque, ON
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Gananoque experiences four distinct seasons with an average annual temperature of 49°F (9°C). Winters average 29°F in January while summers reach 72°F in July. The area gets 245 sunny days per year, above the national average. Annual precipitation totals 42.2 inches. The area receives 44.8 inches of snow annually, making winter weather a significant factor for residents. The city sits at an elevation of 285 feet.
Temperature
29°F Jan (-2°C)
72°F Jul (22°C)
| Annual Average | 48.9°F |
| 9% below US avg | |
| January Average | 29°F (-2°C) |
| July Average | 72°F (22°C) |
| Sunny Days | 245 days/yr |
Geography
| Elevation | 285 ft (87 m) |
| Area | 2.7 sq mi (7.0 km²) |
| Population Density | 1,990/sq mi |
| Coordinates | 44.3334°N, 76.1661°W |
| Timezone | America/Toronto |
Precipitation & Snow
Air Quality
Earthquake History
33 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.7.
| Apr 8, 2003 | 17 km ESE of Saint Regis Falls, New York | M3.7 | 148 km | 10 km |
| Apr 23, 2023 | New York | M3.6 | 54 km | 9 km |
| May 28, 2002 | 11 km WNW of Shawville, Canada | M3.4 | 149 km | 18 km |
| Jun 29, 2024 | 14 km W of Ellisburg, New York | M3.3 | 69 km | 5 km |
| Jul 31, 1997 | 0 km WSW of Lyons Falls, New York | M3.2 | 101 km | 5 km |
| Aug 24, 2011 | 13 km ENE of Saint Regis Falls, New York | M3.2 | 147 km | 5 km |
| May 8, 2009 | 9 km E of Constance Bay, Canada | M3.1 | 130 km | 21 km |
| Feb 24, 2002 | 7 km WSW of Casselman, Canada | M3.1 | 132 km | 18 km |
| Mar 2, 1995 | 3 km ENE of Tupper Lake, New York | M3.0 | 139 km | 4 km |
| Nov 7, 2002 | 13 km SSW of Belleville, Canada | M3.0 | 106 km | 18 km |
| Oct 13, 1997 | 18 km NW of Cranberry Lake, New York | M3.0 | 95 km | 4 km |
| Sep 4, 2004 | 3 km S of Massena, New York | M2.9 | 119 km | 4 km |
| Mar 7, 2008 | 7 km WSW of Casselman, Canada | M2.9 | 132 km | 7 km |
| Oct 12, 1997 | 7 km SSW of Fort Covington Hamlet, New York | M2.9 | 143 km | 14 km |
| Jul 10, 1997 | 8 km WNW of Cornwall, Canada | M2.9 | 132 km | 18 km |
| Mar 5, 2009 | 17 km NW of Constance Bay, Canada | M2.8 | 143 km | 5 km |
| Jul 14, 2021 | 8 km WNW of Massena, New York | M2.8 | 116 km | 7 km |
| Mar 20, 2008 | 12 km S of Osgoode, Canada | M2.8 | 89 km | 6 km |
| Mar 17, 2004 | 3 km SSW of Massena, New York | M2.7 | 117 km | 8 km |
| Mar 14, 2021 | 19 km SW of Winchester, Canada | M2.7 | 86 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 29°F (-2°C) | 2.9 in | |
| February | 19°F (-8°C) | 2.6 in | Coldest |
| March | 29°F (-2°C) | 2.4 in | Driest |
| April | 42°F (6°C) | 3.1 in | |
| May | 54°F (12°C) | 3.2 in | |
| June | 63°F (17°C) | 3.2 in | |
| July | 72°F (22°C) | 3.0 in | Warmest |
| August | 67°F (20°C) | 3.6 in | |
| September | 59°F (15°C) | 4.1 in | Wettest |
| October | 48°F (9°C) | 3.5 in | |
| November | 37°F (3°C) | 3.8 in | |
| December | 24°F (-4°C) | 3.1 in |
Gananoque has a seasonal temperature swing of 53°F / from 19°F in February to 72°F in July. Total annual precipitation is 38.3 inches, with September being the wettest month (4.1") and March the driest (2.4").