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Weather & Climate in Clarington, ON
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Clarington has a cool climate with an average annual temperature of 45°F (7°C). Winters average 21°F in January while summers reach 68°F in July. The area gets 274 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 34.0 inches. The area receives 9.7 inches of snow annually. The city sits at an elevation of 364 feet.
Temperature
21°F Jan (-6°C)
68°F Jul (20°C)
| Annual Average | 45.2°F |
| 16% below US avg | |
| January Average | 21°F (-6°C) |
| July Average | 68°F (20°C) |
| Sunny Days | 274 days/yr |
Geography
| Elevation | 364 ft (111 m) |
| Area | 235.9 sq mi (610.9 km²) |
| Population Density | 430/sq mi |
| Coordinates | 43.9350°N, 78.6083°W |
| Timezone | America/Toronto |
Precipitation & Snow
Air Quality
Earthquake History
22 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.8.
| Nov 26, 1999 | 14 km ESE of Centennial Scarborough, Canada | M3.8 | 40 km | 13 km |
| Feb 6, 2023 | 1 km NE of West Seneca, New York | M3.8 | 120 km | 6 km |
| Dec 25, 1998 | 23 km SE of Cobourg, Canada | M3.6 | 56 km | 18 km |
| May 24, 2000 | 4 km ENE of Centennial Scarborough, Canada | M3.1 | 42 km | 18 km |
| Nov 7, 2002 | 13 km SSW of Belleville, Canada | M3.0 | 95 km | 18 km |
| May 8, 2018 | 14 km SSE of Ajax, Canada | M3.0 | 35 km | 5 km |
| May 25, 1995 | 3 km NW of Amherst, New York | M3.0 | 106 km | 5 km |
| Aug 4, 2004 | 30 km SSW of Cobourg, Canada | M3.0 | 39 km | 5 km |
| Jul 19, 2007 | 27 km S of Cobourg, Canada | M3.0 | 41 km | 5 km |
| Jun 16, 2004 | 11 km NNW of Angola on the Lake, New York | M2.9 | 136 km | 6 km |
| Jun 5, 2009 | 4 km SSE of Attica, New York | M2.9 | 127 km | 5 km |
| Mar 28, 2005 | 16 km NW of Virgil, Canada | M2.8 | 88 km | 7 km |
| Mar 8, 2008 | 5 km ENE of Clarence Center, New York | M2.7 | 101 km | 6 km |
| Dec 21, 2009 | 10 km NNE of Olcott, New York | M2.7 | 57 km | 8 km |
| Mar 29, 2020 | 11 km N of Lyndonville, New York | M2.6 | 60 km | 5 km |
| Mar 15, 2022 | 5 km SSW of Warsaw, New York | M2.6 | 143 km | 5 km |
| Apr 11, 2007 | 6 km NNE of Sodus Point, New York | M2.6 | 149 km | 7 km |
| Sep 20, 2009 | 20 km ESE of Oakville, Canada | M2.6 | 91 km | 4 km |
| Jul 11, 2017 | 11 km NNW of Barker, New York | M2.5 | 56 km | 5 km |
| Jan 25, 1999 | New York | M2.5 | 147 km | 3 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Wildfire History
1 wildfire (100+ acres) recorded within 100 km. Largest: MOHAWK POOL (507 acres, 1994).
| Year | Name | Acres Burned | Distance |
| 1994 | MOHAWK POOL | 507 | 91 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 21°F (-6°C) | 2.4 in | Coldest |
| February | 23°F (-5°C) | 2.2 in | Driest |
| March | 31°F (-1°C) | 2.2 in | |
| April | 43°F (6°C) | 2.8 in | |
| May | 54°F (12°C) | 3.0 in | |
| June | 63°F (17°C) | 3.0 in | |
| July | 68°F (20°C) | 2.5 in | Warmest |
| August | 67°F (19°C) | 3.2 in | |
| September | 60°F (15°C) | 3.5 in | Wettest |
| October | 48°F (9°C) | 2.9 in | |
| November | 38°F (3°C) | 3.5 in | |
| December | 27°F (-3°C) | 2.9 in |
Clarington has a seasonal temperature swing of 47°F / from 21°F in January to 68°F in July. Total annual precipitation is 34.0 inches, with September being the wettest month (3.5") and February the driest (2.2").