South Frontenac, ON

Full City Profile · Ontario

3.1 /5.0

B Good

20,188 Population 55/sq mi density

$104,000 Median Income $56,300 per capita

$500,000 Home Value

$960 Median Rent 11.5% income on rent

43°F Avg Temperature 268 sunny days/yr

Overall

3.1 / 5.0

Good overall score based on economy, affordability, safety and education

B+

Economy

3.9 / 5.0

$104,000 median income, 9.0% unemployment

B+

Affordability

4.0 / 5.0

$500,000 home value, $960/mo rent

C+

Safety

2.5 / 5.0

Education

2.0 / 5.0

12.5% bachelor's degree or higher

South Frontenac has a cool climate with an average annual temperature of 43°F (6°C). Winters average 15°F in January while summers reach 68°F in July. The area gets 268 sunny days per year. Annual precipitation totals 37.6 inches. The area receives 11.0 inches of snow annually.

Temperature

15°F Jan (-9°C) 68°F Jul (20°C)

Annual Average	43.3°F
	20% below US avg
January Average	15°F (-9°C)
July Average	68°F (20°C)
Sunny Days	268 days/yr

Geography

Elevation	568 ft (173 m)
Area	366.0 sq mi (948.0 km²)
Population Density	55/sq mi
Coordinates	44.5404°N, 76.4815°W
Timezone	America/Toronto

Precipitation & Snow

Annual Rainfall 37.6"

1% below US avg

Snowfall 11.0"

Wettest Month (Sep) 3.98"

Driest Month (Feb) 2.44"

Air Quality

Earthquake History

38 earthquakes (M2.5+) within 150 km since 1990. Strongest: M5.1. Most recent: M3.3 on Jun 29, 2024.

May 17, 2013	20 km NNE of Shawville, Canada	M5.1	136 km
May 17, 2013	20 km NNE of Shawville, Canada	M3.6	136 km
Apr 23, 2023	New York	M3.6	84 km
Dec 25, 1998	23 km SE of Cobourg, Canada	M3.6	140 km
Oct 20, 2013	34 km SSW of Petawawa, Canada	M3.6	141 km
May 28, 2002	11 km WNW of Shawville, Canada	M3.4	122 km
Jun 29, 2024	14 km W of Ellisburg, New York	M3.3	92 km
Jun 11, 2008	6 km NNE of Buckingham, Canada	M3.3	149 km
Jul 31, 1997	0 km WSW of Lyons Falls, New York	M3.2	135 km
Sep 9, 2015	20 km NNE of Shawville, Canada	M3.2	137 km
May 8, 2009	9 km E of Constance Bay, Canada	M3.1	114 km
Jun 30, 2013	19 km NNE of Shawville, Canada	M3.1	135 km
May 17, 2013	21 km NNE of Shawville, Canada	M3.1	137 km
Feb 24, 2002	7 km WSW of Casselman, Canada	M3.1	133 km
Nov 7, 2002	13 km SSW of Belleville, Canada	M3.0	93 km
Oct 13, 1997	18 km NW of Cranberry Lake, New York	M3.0	122 km
Sep 4, 2004	3 km S of Massena, New York	M2.9	132 km
Jul 21, 2011	27 km NW of Wakefield, Canada	M2.9	143 km
Mar 7, 2008	7 km WSW of Casselman, Canada	M2.9	133 km
May 30, 2013	20 km NNE of Shawville, Canada	M2.9	137 km

Source: USGS (M2.5+, 1990–2025)

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	15°F (-9°C)	3.0 in	Coldest
February	17°F (-8°C)	2.4 in	Driest
March	27°F (-3°C)	2.6 in
April	41°F (5°C)	2.9 in
May	54°F (12°C)	3.3 in
June	63°F (17°C)	3.2 in
July	68°F (20°C)	2.8 in	Warmest
August	67°F (20°C)	3.4 in
September	59°F (15°C)	4.0 in	Wettest
October	48°F (9°C)	3.3 in
November	37°F (3°C)	3.7 in
December	24°F (-5°C)	3.0 in

South Frontenac has a seasonal temperature swing of 53°F / from 15°F in January to 68°F in July. Total annual precipitation is 37.6 inches, with September being the wettest month (4.0") and February the driest (2.4").

View full weather details →