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Weather & Climate in New Tecumseth, ON
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
New Tecumseth has a cool climate with an average annual temperature of 43°F (6°C). Winters average 18°F in January while summers reach 68°F in July. The area gets 277 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 32.8 inches. The area receives 8.6 inches of snow annually. The city sits at an elevation of 725 feet.
Temperature
18°F Jan (-8°C)
68°F Jul (20°C)
| Annual Average | 43.4°F |
| 20% below US avg | |
| January Average | 18°F (-8°C) |
| July Average | 68°F (20°C) |
| Sunny Days | 277 days/yr |
Geography
| Elevation | 725 ft (221 m) |
| Area | 105.7 sq mi (273.9 km²) |
| Population Density | 416/sq mi |
| Coordinates | 44.1542°N, 79.8690°W |
| Timezone | America/Toronto |
Precipitation & Snow
Air Quality
Earthquake History
13 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 | 86 km | 13 km |
| May 24, 2000 | 4 km ENE of Centennial Scarborough, Canada | M3.1 | 73 km | 18 km |
| May 8, 2018 | 14 km SSE of Ajax, Canada | M3.0 | 87 km | 5 km |
| Aug 4, 2004 | 30 km SSW of Cobourg, Canada | M3.0 | 139 km | 5 km |
| Jul 19, 2007 | 27 km S of Cobourg, Canada | M3.0 | 143 km | 5 km |
| Mar 28, 2005 | 16 km NW of Virgil, Canada | M2.8 | 104 km | 7 km |
| Dec 21, 2009 | 10 km NNE of Olcott, New York | M2.7 | 126 km | 8 km |
| Mar 29, 2020 | 11 km N of Lyndonville, New York | M2.6 | 146 km | 5 km |
| Sep 20, 2009 | 20 km ESE of Oakville, Canada | M2.6 | 92 km | 4 km |
| Jul 11, 2017 | 11 km NNW of Barker, New York | M2.5 | 130 km | 5 km |
| Jul 29, 2012 | 17 km SSW of Parry Sound, Canada | M2.5 | 117 km | 5 km |
| May 17, 2010 | 19 km WNW of Gravenhurst, Canada | M2.5 | 98 km | 5 km |
| Feb 13, 2014 | 34 km N of Lyndonville, New York | M2.5 | 131 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 | — | 130 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 18°F (-8°C) | 2.3 in | Coldest |
| February | 18°F (-8°C) | 2.0 in | Driest |
| March | 27°F (-3°C) | 2.0 in | |
| April | 40°F (5°C) | 2.6 in | |
| May | 53°F (11°C) | 3.1 in | |
| June | 62°F (17°C) | 3.1 in | |
| July | 68°F (20°C) | 3.0 in | Warmest |
| August | 66°F (19°C) | 3.2 in | Wettest |
| September | 59°F (15°C) | 3.2 in | |
| October | 48°F (9°C) | 2.8 in | |
| November | 37°F (3°C) | 3.2 in | |
| December | 25°F (-4°C) | 2.4 in |
New Tecumseth has a seasonal temperature swing of 50°F / from 18°F in January to 68°F in July. Total annual precipitation is 32.8 inches, with August being the wettest month (3.2") and February the driest (2.0").