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Weather & Climate in Tavistock, ON
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Tavistock has a cool climate with an average annual temperature of 45°F (7°C). Winters average 20°F in January while summers reach 68°F in July. The area gets 266 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 38.5 inches. The area receives 10.8 inches of snow annually. The city sits at an elevation of 1,122 feet.
Temperature
20°F Jan (-7°C)
68°F Jul (20°C)
| Annual Average | 44.7°F |
| 17% below US avg | |
| January Average | 20°F (-7°C) |
| July Average | 68°F (20°C) |
| Sunny Days | 266 days/yr |
Geography
| Elevation | 1,122 ft (342 m) |
| Area | 93.4 sq mi (242.0 km²) |
| Population Density | 32/sq mi |
| Coordinates | 43.3168°N, 80.8330°W |
| Timezone | America/Toronto |
Precipitation & Snow
Air Quality
Earthquake History
4 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.1.
| May 24, 2000 | 4 km ENE of Centennial Scarborough, Canada | M3.1 | 150 km | 18 km |
| Mar 28, 2005 | 16 km NW of Virgil, Canada | M2.8 | 125 km | 7 km |
| Sep 20, 2009 | 20 km ESE of Oakville, Canada | M2.6 | 113 km | 4 km |
| May 23, 2022 | 2 km NNW of Corunna, Canada | M2.5 | 139 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 | - | 115 km |
| 1952 | LAKE HURON, MI | Avalanche | 1.5 m | - | 129 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 20°F (-7°C) | 2.8 in | Coldest |
| February | 21°F (-6°C) | 2.3 in | Driest |
| March | 30°F (-1°C) | 2.6 in | |
| April | 42°F (6°C) | 3.2 in | |
| May | 55°F (13°C) | 3.4 in | |
| June | 64°F (18°C) | 3.3 in | |
| July | 68°F (20°C) | 3.7 in | Warmest |
| August | 67°F (19°C) | 3.5 in | |
| September | 59°F (15°C) | 3.6 in | |
| October | 48°F (9°C) | 3.2 in | |
| November | 37°F (3°C) | 3.8 in | Wettest |
| December | 26°F (-3°C) | 3.1 in |
Tavistock has a seasonal temperature swing of 48°F / from 20°F in January to 68°F in July. Total annual precipitation is 38.5 inches, with November being the wettest month (3.8") and February the driest (2.3").