All Countries
Weather & Climate in Deep River, ON
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Deep River has a cool climate with an average annual temperature of 39°F (4°C). Winters average 9°F in January while summers reach 66°F in July. The area gets 273 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 34.6 inches. The area receives 11.9 inches of snow annually. The city sits at an elevation of 492 feet.
Temperature
9°F Jan (-13°C)
66°F Jul (19°C)
| Annual Average | 39.4°F |
| 27% below US avg | |
| January Average | 9°F (-13°C) |
| July Average | 66°F (19°C) |
| Sunny Days | 273 days/yr |
Geography
| Elevation | 492 ft (150 m) |
| Area | 19.4 sq mi (50.3 km²) |
| Population Density | 215/sq mi |
| Coordinates | 46.1001°N, 77.4995°W |
| Timezone | America/Toronto |
Precipitation & Snow
Air Quality
Earthquake History
45 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.1.
| May 17, 2013 | 20 km NNE of Shawville, Canada | M5.1 | 97 km | 13 km |
| Jan 1, 2000 | 17 km NNE of Notre-Dame-du-Lac, Canada | M4.7 | 140 km | 18 km |
| Jun 16, 1991 | 78 km NW of Saint-Boniface, Canada | M4.5 | 117 km | 18 km |
| Oct 12, 2003 | 63 km NNW of Saint-Boniface, Canada | M4.2 | 133 km | 18 km |
| Mar 19, 2001 | 65 km NNW of Saint-Boniface, Canada | M3.9 | 141 km | 18 km |
| Mar 6, 1991 | 49 km NNW of Fort-Coulonge, Canada | M3.9 | 52 km | 18 km |
| Sep 7, 2002 | southern Quebec, Canada | M3.7 | 133 km | 18 km |
| Feb 26, 1998 | 33 km SW of Saint-Raphaël, Canada | M3.7 | 88 km | 18 km |
| Jul 13, 2019 | 78 km NNW of Saint-Boniface, Canada | M3.7 | 149 km | 15 km |
| May 17, 2013 | 20 km NNE of Shawville, Canada | M3.6 | 96 km | 11 km |
| Oct 20, 2013 | 34 km SSW of Petawawa, Canada | M3.6 | 55 km | 18 km |
| Mar 29, 2011 | 66 km NE of Deep River, Canada | M3.5 | 67 km | 18 km |
| May 14, 2016 | 8 km NW of Petawawa, Canada | M3.5 | 20 km | 18 km |
| Oct 10, 1995 | southern Quebec, Canada | M3.5 | 104 km | 18 km |
| Mar 31, 2005 | 27 km ESE of Maniwaki, Canada | M3.4 | 145 km | 18 km |
| May 28, 2002 | 11 km WNW of Shawville, Canada | M3.4 | 86 km | 18 km |
| Jun 3, 1995 | southern Quebec, Canada | M3.4 | 138 km | 18 km |
| Apr 7, 2024 | 72 km NNW of Saint-Boniface, Canada | M3.3 | 148 km | 10 km |
| Aug 27, 2021 | 55 km NW of Saint-Boniface, Canada | M3.3 | 113 km | 14 km |
| May 2, 2015 | 12 km NE of Notre-Dame-du-Lac, Canada | M3.3 | 136 km | 18 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 9°F (-13°C) | 2.2 in | Coldest |
| February | 12°F (-11°C) | 1.9 in | Driest |
| March | 23°F (-5°C) | 2.3 in | |
| April | 38°F (3°C) | 2.5 in | |
| May | 52°F (11°C) | 3.3 in | |
| June | 61°F (16°C) | 3.4 in | |
| July | 66°F (19°C) | 3.4 in | Warmest |
| August | 64°F (18°C) | 3.4 in | |
| September | 56°F (13°C) | 3.5 in | Wettest |
| October | 44°F (7°C) | 3.3 in | |
| November | 32°F (0°C) | 3.0 in | |
| December | 17°F (-8°C) | 2.5 in |
Deep River has a seasonal temperature swing of 57°F / from 9°F in January to 66°F in July. Total annual precipitation is 34.6 inches, with September being the wettest month (3.5") and February the driest (1.9").