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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. The area gets 270 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. 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) |
| Sunny Days | 270 days/yr |
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").