Weather & Climate in Tay, ON
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Tay has a cool climate with an average annual temperature of 43°F (6°C). Winters average 16°F in January while summers reach 67°F in July. Annual precipitation totals 40.2 inches. The area receives 13.2 inches of snow annually. The city sits at an elevation of 663 feet.
Temperature
16°F Jan (-9°C)
67°F Jul (20°C)
| Annual Average | 42.8°F |
| 21% below US avg | |
| January Average | 16°F (-9°C) |
| July Average | 67°F (20°C) |
Geography
| Elevation | 663 ft (202 m) |
| Area | 53.2 sq mi (137.9 km²) |
| Population Density | 209/sq mi |
| Coordinates | 44.7159°N, 79.7714°W |
| Timezone | America/Toronto |
Precipitation & Snow
Air Quality
Earthquake History
5 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.8.
| Nov 26, 1999 | 14 km ESE of Centennial Scarborough, Canada | M3.8 | 128 km | 13 km |
| May 24, 2000 | 4 km ENE of Centennial Scarborough, Canada | M3.1 | 115 km | 18 km |
| May 8, 2018 | 14 km SSE of Ajax, Canada | M3.0 | 127 km | 5 km |
| Jul 29, 2012 | 17 km SSW of Parry Sound, Canada | M2.5 | 58 km | 5 km |
| May 17, 2010 | 19 km WNW of Gravenhurst, Canada | M2.5 | 36 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Tsunami History
1 tsunami recorded within 500 km. Highest wave on record: 2.7 m (9 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1855 | OWEN SOUND, LAKE HURON | Unknown | 2.7 m | - | 102 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 16°F (-9°C) | 4.1 in | Coldest, Wettest |
| February | 17°F (-8°C) | 2.6 in | |
| March | 27°F (-3°C) | 2.4 in | Driest |
| April | 40°F (4°C) | 2.6 in | |
| May | 53°F (11°C) | 3.5 in | |
| June | 62°F (16°C) | 3.2 in | |
| July | 67°F (20°C) | 2.9 in | Warmest |
| August | 66°F (19°C) | 3.2 in | |
| September | 59°F (15°C) | 3.9 in | |
| October | 48°F (9°C) | 3.6 in | |
| November | 36°F (2°C) | 4.1 in | |
| December | 24°F (-5°C) | 4.0 in |
Tay has a seasonal temperature swing of 51°F / from 16°F in January to 67°F in July. Total annual precipitation is 40.2 inches, with January being the wettest month (4.1") and March the driest (2.4").