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Weather & Climate in Saint-Antoine-sur-Richelieu, QC
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Saint-Antoine-sur-Richelieu has a cool climate with an average annual temperature of 42°F (6°C). Winters average 12°F in January while summers reach 69°F in July. The area gets 264 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 39.7 inches. The area receives 14.8 inches of snow annually. The city sits at an elevation of 59 feet.
Temperature
12°F Jan (-11°C)
69°F Jul (20°C)
| Annual Average | 42.1°F |
| 22% below US avg | |
| January Average | 12°F (-11°C) |
| July Average | 69°F (20°C) |
| Sunny Days | 264 days/yr |
Geography
| Elevation | 59 ft (18 m) |
| Area | 25.4 sq mi (65.7 km²) |
| Population Density | 69/sq mi |
| Coordinates | 45.7795°N, 73.1720°W |
| Timezone | America/Montreal |
Precipitation & Snow
Air Quality
Earthquake History
107 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.3.
| Apr 20, 2002 | 8 km NNW of Au Sable Forks, New York | M5.3 | 147 km | 5 km |
| Mar 14, 1996 | 7 km WNW of Saint-Adolphe-d'Howard, Canada | M4.5 | 100 km | 18 km |
| May 17, 1991 | 7 km WNW of Rigaud, Canada | M4.4 | 100 km | 18 km |
| May 24, 1997 | 6 km W of Saint-Adolphe-d'Howard, Canada | M4.2 | 99 km | 10 km |
| Oct 31, 1999 | 7 km SW of Morin-Heights, Canada | M4.2 | 89 km | 18 km |
| Apr 18, 1998 | 4 km N of Plantagenet, Canada | M4.1 | 143 km | 18 km |
| Aug 6, 2000 | 7 km SSW of La Minerve, Canada | M4.0 | 146 km | 18 km |
| Nov 17, 1992 | 16 km ENE of Saint-André-Avellin, Canada | M4.0 | 131 km | 18 km |
| Oct 10, 2012 | 7 km ESE of Verchères, Canada | M3.9 | 8 km | 9 km |
| Jul 30, 1993 | 1 km NE of Salaberry-de-Valleyfield, Canada | M3.9 | 94 km | 8 km |
| Mar 16, 2011 | 6 km ENE of Hawkesbury, Canada | M3.9 | 108 km | 10 km |
| Nov 16, 1993 | 5 km SSE of Saint-Édouard, Canada | M3.8 | 71 km | 17 km |
| Jul 30, 1998 | 0 km ENE of Lac-Simon, Canada | M3.8 | 128 km | 10 km |
| Sep 1, 2024 | 5 km SE of Pierreville, Canada | M3.8 | 44 km | 1 km |
| Sep 23, 1993 | 11 km SE of La Conception, Canada | M3.8 | 115 km | 18 km |
| Jul 5, 1991 | 7 km WSW of Sainte-Martine, Canada | M3.8 | 83 km | 18 km |
| Feb 11, 2002 | 2 km WNW of Notre-Dame-des-Prairies, Canada | M3.8 | 38 km | 10 km |
| Oct 6, 2000 | 1 km WSW of Ormstown, Canada | M3.8 | 98 km | 18 km |
| Nov 6, 2012 | Ontario-Quebec border region, Canada | M3.7 | 112 km | 11 km |
| Jan 9, 2006 | 2 km ESE of Franklin, Canada | M3.7 | 101 km | 13 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 12°F (-11°C) | 2.9 in | Coldest |
| February | 14°F (-10°C) | 2.4 in | Driest |
| March | 26°F (-4°C) | 2.5 in | |
| April | 40°F (5°C) | 3.0 in | |
| May | 55°F (13°C) | 3.4 in | |
| June | 64°F (18°C) | 3.8 in | |
| July | 69°F (20°C) | 3.7 in | Warmest |
| August | 67°F (20°C) | 3.9 in | Wettest |
| September | 58°F (15°C) | 3.5 in | |
| October | 47°F (8°C) | 3.7 in | |
| November | 35°F (2°C) | 3.7 in | |
| December | 20°F (-7°C) | 3.4 in |
Saint-Antoine-sur-Richelieu has a seasonal temperature swing of 57°F / from 12°F in January to 69°F in July. Total annual precipitation is 39.7 inches, with August being the wettest month (3.9") and February the driest (2.4").