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Weather & Climate in Rock Forest, QC
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Rock Forest has a cool climate with an average annual temperature of 45°F (7°C). Winters average 16°F in January while summers reach 69°F in July. The area gets 258 sunny days per year, above the national average. Annual precipitation totals 51.0 inches (wetter than the 38-inch national average). The area receives 68.6 inches of snow annually, making winter weather a significant factor for residents. The city sits at an elevation of 807 feet.
Temperature
16°F Jan (-9°C)
69°F Jul (20°C)
| Annual Average | 44.5°F |
| 18% below US avg | |
| January Average | 16°F (-9°C) |
| July Average | 69°F (20°C) |
| Sunny Days | 258 days/yr |
Geography
| Elevation | 807 ft (246 m) |
| Area | 149.9 sq mi (388.2 km²) |
| Population Density | 237/sq mi |
| Coordinates | 45.3570°N, 71.9968°W |
| Timezone | America/Toronto |
Precipitation & Snow
Air Quality
Earthquake History
44 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.9.
| Oct 10, 2012 | 7 km ESE of Verchères, Canada | M3.9 | 109 km | 9 km |
| Aug 21, 1996 | 12 km N of Livermore, New Hampshire | M3.8 | 140 km | 10 km |
| Jun 16, 1995 | 8 km N of Lisbon, New Hampshire | M3.8 | 119 km | 5 km |
| Feb 11, 2002 | 2 km WNW of Notre-Dame-des-Prairies, Canada | M3.8 | 138 km | 10 km |
| Jul 5, 1991 | 7 km WSW of Sainte-Martine, Canada | M3.8 | 149 km | 18 km |
| Nov 16, 1993 | 5 km SSE of Saint-Édouard, Canada | M3.8 | 119 km | 17 km |
| Sep 1, 2024 | 5 km SE of Pierreville, Canada | M3.8 | 96 km | 1 km |
| Jul 23, 2010 | 18 km S of Saint-Antoine-de-Tilly, Canada | M3.5 | 130 km | 18 km |
| Apr 3, 1997 | 9 km ENE of Saint-Cyrille-de-Wendover, Canada | M3.5 | 74 km | 5 km |
| May 17, 2021 | 5 km SW of L'Épiphanie, Canada | M3.3 | 129 km | 12 km |
| Aug 20, 1995 | 4 km S of Chambly, Canada | M3.3 | 100 km | 18 km |
| Jun 1, 2002 | 3 km SW of Boisbriand, Canada | M3.2 | 148 km | 18 km |
| May 6, 2020 | 9 km SE of Bedford, Canada | M3.1 | 78 km | 14 km |
| May 11, 2006 | 7 km W of Nicolet, Canada | M3.0 | 112 km | 5 km |
| Mar 29, 2020 | 3 km W of L'Épiphanie, Canada | M3.0 | 131 km | 11 km |
| Apr 15, 2010 | 7 km WNW of Valcourt, Canada | M3.0 | 37 km | 18 km |
| Feb 4, 2022 | 0 km SSW of Gorham, New Hampshire | M2.9 | 126 km | 8 km |
| Nov 9, 2009 | southern Quebec, Canada | M2.9 | 40 km | 18 km |
| Mar 24, 2007 | 7 km W of Sainte-Catherine, Canada | M2.8 | 118 km | 5 km |
| Jul 4, 2016 | 6 km S of Saint-Thomas, Canada | M2.8 | 126 km | 18 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 16°F (-9°C) | 2.5 in | |
| February | 15°F (-10°C) | 2.1 in | Coldest, Driest |
| March | 26°F (-3°C) | 2.4 in | |
| April | 40°F (4°C) | 3.0 in | |
| May | 53°F (12°C) | 3.8 in | |
| June | 62°F (17°C) | 4.3 in | |
| July | 69°F (20°C) | 4.6 in | Warmest |
| August | 65°F (19°C) | 5.0 in | Wettest |
| September | 57°F (14°C) | 3.7 in | |
| October | 45°F (7°C) | 3.9 in | |
| November | 34°F (1°C) | 3.6 in | |
| December | 20°F (-7°C) | 3.2 in |
Rock Forest has a seasonal temperature swing of 54°F / from 15°F in February to 69°F in July. Total annual precipitation is 42.1 inches, with August being the wettest month (5.0") and February the driest (2.1").