Weather & Climate in Walpole Island, ON

Temperature, precipitation, air quality, natural hazards, and monthly weather data.

Walpole Island experiences four distinct seasons with an average annual temperature of 48°F (9°C). Winters average 24°F in January while summers reach 71°F in July. Annual precipitation totals 32.7 inches. The area receives 9.0 inches of snow annually. The city sits at an elevation of 581 feet.

Temperature

24°F Jan (-5°C) 71°F Jul (22°C)
Annual Average47.8°F
11% below US avg
January Average24°F (-5°C)
July Average71°F (22°C)

Geography

Elevation581 ft (177 m)
Area187.3 sq mi (485.1 km²)
Population Density10/sq mi
Coordinates42.6152°N, 82.5140°W
TimezoneAmerica/Detroit

Precipitation & Snow

Annual Rainfall 32.7"
14% below US avg
Snowfall 9.0"
Wettest Month (Sep) 3.43"
Driest Month (Jan) 1.97"

Air Quality

Earthquake History

27 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.0.

Jun 10, 2019 1 km NW of Timberlake, Ohio M4.0 136 km 2 km
Jun 30, 2003 6 km NW of Perry, Ohio M3.6 141 km 5 km
Mar 15, 1992 15 km NW of North Perry, Ohio M3.5 131 km 5 km
Jun 20, 2006 9 km WNW of North Perry, Ohio M3.5 136 km 5 km
Apr 20, 2018 Michigan M3.4 69 km 3 km
Jan 26, 1991 1 km NNE of Mayfield Heights, Ohio M3.4 149 km 5 km
Jul 1, 2013 5 km NNW of Fairport Harbor, Ohio M3.2 136 km 5 km
Jan 9, 2008 6 km WNW of Mentor-on-the-Lake, Ohio M3.1 134 km 5 km
Mar 11, 2006 8 km NNW of Mentor-on-the-Lake, Ohio M3.1 131 km 5 km
Feb 23, 2011 18 km NE of Leamington, Canada M3.0 51 km 5 km
Apr 12, 2007 11 km NW of Put-in-Bay, Ohio M2.8 105 km 5 km
Sep 22, 1999 16 km NW of Mentor-on-the-Lake, Ohio M2.8 123 km 18 km
Jan 4, 2022 3 km NW of Timberlake, Ohio M2.8 135 km 5 km
Apr 28, 2002 Ohio M2.7 127 km 5 km
Mar 8, 2013 5 km NNW of Timberlake, Ohio M2.7 133 km 5 km
Jun 10, 2010 8 km NW of Mentor-on-the-Lake, Ohio M2.6 131 km 5 km
Feb 10, 2006 6 km NW of Mentor-on-the-Lake, Ohio M2.6 132 km 5 km
May 20, 2023 3 km SSE of Walbridge, Ohio M2.6 143 km 6 km
Jan 6, 2006 10 km NW of Mentor-on-the-Lake, Ohio M2.6 129 km 5 km
May 14, 2017 18 km ENE of Leamington, Canada M2.6 54 km 5 km
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.

Tsunami History

2 tsunamis 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 - 129 km
1952 LAKE HURON, MI Avalanche 1.5 m - 55 km
Source: NOAA/NCEI Historical Tsunami Database.

Monthly Weather

Month Avg Temperature Precipitation Summary
January 24°F (-5°C) 2.0 in Coldest, Driest
February 25°F (-4°C) 2.0 in
March 33°F (1°C) 2.4 in
April 44°F (7°C) 2.9 in
May 56°F (13°C) 2.9 in
June 66°F (19°C) 3.1 in
July 71°F (22°C) 3.0 in Warmest
August 70°F (21°C) 3.2 in
September 63°F (17°C) 3.4 in Wettest
October 52°F (11°C) 2.3 in
November 41°F (5°C) 2.9 in
December 30°F (-1°C) 2.6 in

Walpole Island has a seasonal temperature swing of 47°F / from 24°F in January to 71°F in July. Total annual precipitation is 32.7 inches, with September being the wettest month (3.4") and January the driest (2.0").

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