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Weather & Climate in Tehkummah, ON
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Tehkummah has a cool climate with an average annual temperature of 42°F (6°C). Winters average 19°F in January while summers reach 64°F in July. The area gets 273 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 34.7 inches. The area receives 10.6 inches of snow annually. The city sits at an elevation of 715 feet.
Temperature
19°F Jan (-7°C)
64°F Jul (18°C)
| Annual Average | 42.3°F |
| 22% below US avg | |
| January Average | 19°F (-7°C) |
| July Average | 64°F (18°C) |
| Sunny Days | 273 days/yr |
Geography
| Elevation | 715 ft (218 m) |
| Area | 50.9 sq mi (131.7 km²) |
| Population Density | 9/sq mi |
| Coordinates | 45.6560°N, 82.0141°W |
| Timezone | America/Toronto |
Precipitation & Snow
Air Quality
Earthquake History
6 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.9.
| Mar 9, 1998 | Ontario, Canada | M3.9 | 118 km | 1 km |
| Aug 5, 2014 | 6 km NNW of Lively, Canada | M3.8 | 112 km | 5 km |
| Mar 13, 2005 | 5 km N of Greater Sudbury, Canada | M3.6 | 127 km | 18 km |
| May 25, 1998 | 3 km NW of Lively, Canada | M3.4 | 110 km | 1 km |
| Aug 5, 2014 | 5 km NNW of Lively, Canada | M3.3 | 111 km | 12 km |
| Feb 8, 2019 | 7 km SW of Azilda, Canada | M3.1 | 115 km | 2 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 | — | 108 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 19°F (-7°C) | 2.9 in | Coldest |
| February | 20°F (-7°C) | 1.9 in | Driest |
| March | 27°F (-3°C) | 2.3 in | |
| April | 39°F (4°C) | 2.6 in | |
| May | 49°F (9°C) | 2.8 in | |
| June | 58°F (14°C) | 2.4 in | |
| July | 64°F (18°C) | 2.1 in | Warmest |
| August | 64°F (18°C) | 2.9 in | |
| September | 58°F (14°C) | 3.6 in | |
| October | 47°F (9°C) | 4.0 in | Wettest |
| November | 37°F (3°C) | 3.5 in | |
| December | 26°F (-4°C) | 3.5 in |
Tehkummah has a seasonal temperature swing of 46°F / from 19°F in January to 64°F in July. Total annual precipitation is 34.6 inches, with October being the wettest month (4.0") and February the driest (1.9").