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Weather & Climate in Saint-Mathieu, QC
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Saint-Mathieu has a cool climate with an average annual temperature of 43°F (6°C). Winters average 14°F in January while summers reach 69°F in July. The area gets 267 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 37.8 inches. The area receives 13.7 inches of snow annually. The city sits at an elevation of 125 feet.
Temperature
14°F Jan (-10°C)
69°F Jul (21°C)
| Annual Average | 43.2°F |
| 20% below US avg | |
| January Average | 14°F (-10°C) |
| July Average | 69°F (21°C) |
| Sunny Days | 267 days/yr |
Geography
| Elevation | 125 ft (38 m) |
| Area | 12.1 sq mi (31.4 km²) |
| Population Density | 193/sq mi |
| Coordinates | 45.3168°N, 73.5159°W |
| Timezone | America/Toronto |
Precipitation & Snow
Air Quality
Earthquake History
119 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 | 91 km | 5 km |
| Mar 14, 1996 | 7 km WNW of Saint-Adolphe-d'Howard, Canada | M4.5 | 103 km | 18 km |
| May 17, 1991 | 7 km WNW of Rigaud, Canada | M4.4 | 72 km | 18 km |
| Oct 31, 1999 | 7 km SW of Morin-Heights, Canada | M4.2 | 86 km | 18 km |
| May 24, 1997 | 6 km W of Saint-Adolphe-d'Howard, Canada | M4.2 | 102 km | 10 km |
| Apr 18, 1998 | 4 km N of Plantagenet, Canada | M4.1 | 118 km | 18 km |
| Aug 6, 2000 | 7 km SSW of La Minerve, Canada | M4.0 | 149 km | 18 km |
| Nov 17, 1992 | 16 km ENE of Saint-André-Avellin, Canada | M4.0 | 116 km | 18 km |
| Feb 25, 2006 | 4 km NE of Thurso, Canada | M4.0 | 136 km | 11 km |
| Oct 10, 2012 | 7 km ESE of Verchères, Canada | M3.9 | 52 km | 9 km |
| Jul 30, 1993 | 1 km NE of Salaberry-de-Valleyfield, Canada | M3.9 | 48 km | 8 km |
| Mar 16, 2011 | 6 km ENE of Hawkesbury, Canada | M3.9 | 86 km | 10 km |
| Sep 18, 2011 | 1 km E of Thurso, Canada | M3.8 | 138 km | 5 km |
| Feb 11, 2002 | 2 km WNW of Notre-Dame-des-Prairies, Canada | M3.8 | 83 km | 10 km |
| Sep 23, 1993 | 11 km SE of La Conception, Canada | M3.8 | 119 km | 18 km |
| Sep 1, 2024 | 5 km SE of Pierreville, Canada | M3.8 | 100 km | 1 km |
| Oct 6, 2000 | 1 km WSW of Ormstown, Canada | M3.8 | 45 km | 18 km |
| Nov 16, 1993 | 5 km SSE of Saint-Édouard, Canada | M3.8 | 15 km | 17 km |
| Jul 5, 1991 | 7 km WSW of Sainte-Martine, Canada | M3.8 | 31 km | 18 km |
| Jul 30, 1998 | 0 km ENE of Lac-Simon, Canada | M3.8 | 133 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Wildfire History
1 wildfire (100+ acres) recorded within 100 km. Largest: FLAT ROCK FIRE (658 acres, 2018).
| Year | Name | Acres Burned | Distance |
| 2018 | FLAT ROCK FIRE | 658 | 51 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 14°F (-10°C) | 2.5 in | Coldest |
| February | 16°F (-9°C) | 2.1 in | Driest |
| March | 28°F (-2°C) | 2.5 in | |
| April | 42°F (5°C) | 3.0 in | |
| May | 56°F (13°C) | 3.2 in | |
| June | 65°F (18°C) | 3.4 in | |
| July | 69°F (21°C) | 3.8 in | Warmest, Wettest |
| August | 67°F (20°C) | 3.8 in | |
| September | 59°F (15°C) | 3.7 in | |
| October | 47°F (8°C) | 3.3 in | |
| November | 35°F (2°C) | 3.5 in | |
| December | 21°F (-6°C) | 3.1 in |
Saint-Mathieu has a seasonal temperature swing of 56°F / from 14°F in January to 69°F in July. Total annual precipitation is 37.8 inches, with July being the wettest month (3.8") and February the driest (2.1").