Weather & Climate in Plympton-Wyoming, ON
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Plympton-Wyoming experiences four distinct seasons with an average annual temperature of 47°F (8°C). Winters average 22°F in January while summers reach 70°F in July. Annual precipitation totals 36.2 inches. The area receives 10.1 inches of snow annually. The city sits at an elevation of 669 feet.
Temperature
22°F Jan (-5°C)
70°F Jul (21°C)
| Annual Average | 46.5°F |
| 14% below US avg | |
| January Average | 22°F (-5°C) |
| July Average | 70°F (21°C) |
Geography
| Elevation | 669 ft (204 m) |
| Area | 123.1 sq mi (318.9 km²) |
| Population Density | 68/sq mi |
| Coordinates | 43.0168°N, 82.0998°W |
| Timezone | America/Toronto |
Precipitation & Snow
Air Quality
Earthquake History
12 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.5.
| Mar 15, 1992 | 15 km NW of North Perry, Ohio | M3.5 | 142 km | 5 km |
| Jun 20, 2006 | 9 km WNW of North Perry, Ohio | M3.5 | 149 km | 5 km |
| Apr 20, 2018 | Michigan | M3.4 | 125 km | 3 km |
| Mar 11, 2006 | 8 km NNW of Mentor-on-the-Lake, Ohio | M3.1 | 149 km | 5 km |
| Feb 23, 2011 | 18 km NE of Leamington, Canada | M3.0 | 99 km | 5 km |
| Sep 22, 1999 | 16 km NW of Mentor-on-the-Lake, Ohio | M2.8 | 142 km | 18 km |
| Apr 28, 2002 | Ohio | M2.7 | 143 km | 5 km |
| May 14, 2017 | 18 km ENE of Leamington, Canada | M2.6 | 101 km | 5 km |
| Jan 6, 2006 | 10 km NW of Mentor-on-the-Lake, Ohio | M2.6 | 149 km | 5 km |
| Mar 8, 2010 | 7 km ENE of Grosse Ile, Michigan | M2.5 | 124 km | 18 km |
| May 23, 2022 | 2 km NNW of Corunna, Canada | M2.5 | 31 km | 5 km |
| Feb 17, 2013 | 31 km E of Leamington, Canada | M2.5 | 112 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 | - | 121 km |
| 1952 | LAKE HURON, MI | Avalanche | 1.5 m | - | 26 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 22°F (-5°C) | 2.5 in | Coldest |
| February | 23°F (-5°C) | 2.2 in | Driest |
| March | 31°F (-0°C) | 2.4 in | |
| April | 42°F (6°C) | 3.1 in | |
| May | 54°F (12°C) | 3.1 in | |
| June | 64°F (18°C) | 3.2 in | |
| July | 70°F (21°C) | 3.0 in | Warmest |
| August | 69°F (20°C) | 3.2 in | |
| September | 62°F (17°C) | 3.9 in | Wettest |
| October | 51°F (11°C) | 3.2 in | |
| November | 40°F (5°C) | 3.5 in | |
| December | 29°F (-1°C) | 3.0 in |
Plympton-Wyoming has a seasonal temperature swing of 47°F / from 22°F in January to 70°F in July. Total annual precipitation is 36.2 inches, with September being the wettest month (3.9") and February the driest (2.2").