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 Average | 47.8°F |
| 11% below US avg | |
| January Average | 24°F (-5°C) |
| July Average | 71°F (22°C) |
Geography
| Elevation | 581 ft (177 m) |
| Area | 187.3 sq mi (485.1 km²) |
| Population Density | 10/sq mi |
| Coordinates | 42.6152°N, 82.5140°W |
| Timezone | America/Detroit |
Precipitation & Snow
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").