Port Rowan, ON

Full City Profile · Ontario

1,102 Population 2/sq mi density
47°F Avg Temperature
Port Rowan experiences four distinct seasons with an average annual temperature of 47°F (8°C). Winters average 24°F in January while summers reach 70°F in July. Annual precipitation totals 38.5 inches. The area receives 11.5 inches of snow annually.

Temperature

24°F Jan (-4°C) 70°F Jul (21°C)
Annual Average47.4°F
12% below US avg
January Average24°F (-4°C)
July Average70°F (21°C)

Geography

Elevation607 ft (185 m)
Area616.9 sq mi (1,597.7 km²)
Population Density2/sq mi
Coordinates42.6168°N, 80.4664°W
TimezoneAmerica/Toronto

Precipitation & Snow

Annual Rainfall 38.5"
1% above US avg
Snowfall 11.5"
Wettest Month (Sep) 3.74"
Driest Month (Feb) 2.17"

Air Quality

Earthquake History

36 earthquakes (M2.5+) within 150 km since 1990. Strongest: M4.5. Most recent: M2.5 on May 12, 2025.

Sep 25, 1998 2 km SW of Adamsville, Pennsylvania M4.5 125 km
Jun 10, 2019 1 km NW of Timberlake, Ohio M4.0 132 km
Jan 26, 2001 8 km NNW of Edgewood, Ohio M3.9 80 km
Feb 6, 2023 1 km NE of West Seneca, New York M3.8 140 km
Aug 28, 2023 7 km SE of Madison, Ohio M3.6 107 km
Oct 16, 1993 8 km SSE of Madison, Ohio M3.6 112 km
Jun 30, 2003 6 km NW of Perry, Ohio M3.6 109 km
Mar 15, 1992 15 km NW of North Perry, Ohio M3.5 101 km
Jun 20, 2006 9 km WNW of North Perry, Ohio M3.5 107 km
Jan 26, 1991 1 km NNE of Mayfield Heights, Ohio M3.4 145 km
Jun 3, 2001 3 km N of Edgewood, Ohio M3.4 83 km
Jun 30, 2004 2 km WNW of Madison, Ohio M3.3 106 km
Jul 1, 2013 5 km NNW of Fairport Harbor, Ohio M3.2 114 km
Jan 9, 2008 6 km WNW of Mentor-on-the-Lake, Ohio M3.1 128 km
Mar 11, 2006 8 km NNW of Mentor-on-the-Lake, Ohio M3.1 120 km
May 25, 1995 3 km NW of Amherst, New York M3.0 140 km
Apr 25, 2010 2 km WNW of Madison, Ohio M3.0 106 km
Jun 16, 2004 11 km NNW of Angola on the Lake, New York M2.9 115 km
Feb 23, 1995 3 km W of Ashtabula, Ohio M2.9 88 km
Jan 4, 2022 3 km NW of Timberlake, Ohio M2.8 132 km
Source: USGS (M2.5+, 1990-2025)

Tsunami History

1 tsunami recorded within 500 km. Highest wave on record: 2.7 m (9 ft).

Year Location Cause Max Wave Deaths Distance
1823 LAKE ERIE Unknown 2.7 m - 57 km
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Monthly Weather

Month Avg Temperature Precipitation Summary
January 24°F (-4°C) 2.6 in Coldest
February 25°F (-4°C) 2.2 in Driest
March 33°F (0°C) 3.1 in
April 44°F (6°C) 3.4 in
May 55°F (13°C) 3.0 in
June 65°F (18°C) 3.5 in
July 70°F (21°C) 3.1 in Warmest
August 69°F (21°C) 3.4 in
September 62°F (17°C) 3.7 in Wettest
October 51°F (11°C) 3.2 in
November 41°F (5°C) 3.7 in
December 31°F (-1°C) 3.7 in

Port Rowan has a seasonal temperature swing of 45°F / from 24°F in January to 70°F in July. Total annual precipitation is 38.5 inches, with September being the wettest month (3.7") and February the driest (2.2").

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