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Weather & Climate in Guelph, ON
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Guelph 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 238 sunny days per year, above the national average. Annual precipitation totals 34.6 inches. The area receives 53.2 inches of snow annually, making winter weather a significant factor for residents. The city sits at an elevation of 1,096 feet.
Temperature
22°F Jan (-5°C)
70°F Jul (21°C)
| Annual Average | 47.1°F |
| 13% below US avg | |
| January Average | 22°F (-5°C) |
| July Average | 70°F (21°C) |
| Sunny Days | 238 days/yr |
Geography
| Elevation | 1,096 ft (334 m) |
| Area | 33.8 sq mi (87.4 km²) |
| Population Density | 4,258/sq mi |
| Coordinates | 43.5459°N, 80.2560°W |
| Timezone | America/Toronto |
Precipitation & Snow
Air Quality
Earthquake History
11 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 | 103 km | 13 km |
| Feb 6, 2023 | 1 km NE of West Seneca, New York | M3.8 | 142 km | 6 km |
| May 24, 2000 | 4 km ENE of Centennial Scarborough, Canada | M3.1 | 97 km | 18 km |
| May 8, 2018 | 14 km SSE of Ajax, Canada | M3.0 | 107 km | 5 km |
| May 25, 1995 | 3 km NW of Amherst, New York | M3.0 | 131 km | 5 km |
| Jun 16, 2004 | 11 km NNW of Angola on the Lake, New York | M2.9 | 130 km | 6 km |
| Mar 28, 2005 | 16 km NW of Virgil, Canada | M2.8 | 82 km | 7 km |
| Mar 8, 2008 | 5 km ENE of Clarence Center, New York | M2.7 | 148 km | 6 km |
| Dec 21, 2009 | 10 km NNE of Olcott, New York | M2.7 | 129 km | 8 km |
| Sep 20, 2009 | 20 km ESE of Oakville, Canada | M2.6 | 68 km | 4 km |
| Jul 11, 2017 | 11 km NNW of Barker, New York | M2.5 | 135 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 22°F (-5°C) | 2.2 in | |
| February | 20°F (-7°C) | 2.1 in | Coldest, Driest |
| March | 29°F (-2°C) | 2.4 in | |
| April | 41°F (5°C) | 2.9 in | |
| May | 54°F (12°C) | 3.2 in | |
| June | 63°F (17°C) | 3.2 in | |
| July | 70°F (21°C) | 3.7 in | Warmest, Wettest |
| August | 66°F (19°C) | 3.6 in | |
| September | 59°F (15°C) | 3.5 in | |
| October | 47°F (9°C) | 2.8 in | |
| November | 37°F (3°C) | 3.5 in | |
| December | 25°F (-4°C) | 2.9 in |
Guelph has a seasonal temperature swing of 50°F / from 20°F in February to 70°F in July. Total annual precipitation is 36.0 inches, with July being the wettest month (3.7") and February the driest (2.1").