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Weather & Climate in Alnwick/Haldimand, ON
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Alnwick/Haldimand has a cool climate with an average annual temperature of 44°F (7°C). Winters average 18°F in January while summers reach 68°F in July. The area gets 270 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 36.4 inches. The area receives 10.4 inches of snow annually. The city sits at an elevation of 928 feet.
Temperature
18°F Jan (-8°C)
68°F Jul (20°C)
| Annual Average | 43.7°F |
| 19% below US avg | |
| January Average | 18°F (-8°C) |
| July Average | 68°F (20°C) |
| Sunny Days | 270 days/yr |
Geography
| Elevation | 928 ft (283 m) |
| Area | 153.8 sq mi (398.3 km²) |
| Population Density | 49/sq mi |
| Coordinates | 44.0974°N, 78.0476°W |
| Timezone | America/Toronto |
Precipitation & Snow
Air Quality
Earthquake History
20 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 | 87 km | 13 km |
| Feb 6, 2023 | 1 km NE of West Seneca, New York | M3.8 | 150 km | 6 km |
| Dec 25, 1998 | 23 km SE of Cobourg, Canada | M3.6 | 31 km | 18 km |
| Jun 29, 2024 | 14 km W of Ellisburg, New York | M3.3 | 145 km | 5 km |
| May 24, 2000 | 4 km ENE of Centennial Scarborough, Canada | M3.1 | 90 km | 18 km |
| May 8, 2018 | 14 km SSE of Ajax, Canada | M3.0 | 83 km | 5 km |
| May 25, 1995 | 3 km NW of Amherst, New York | M3.0 | 138 km | 5 km |
| Nov 7, 2002 | 13 km SSW of Belleville, Canada | M3.0 | 50 km | 18 km |
| Aug 4, 2004 | 30 km SSW of Cobourg, Canada | M3.0 | 48 km | 5 km |
| Jul 19, 2007 | 27 km S of Cobourg, Canada | M3.0 | 44 km | 5 km |
| Jun 5, 2009 | 4 km SSE of Attica, New York | M2.9 | 142 km | 5 km |
| Mar 28, 2005 | 16 km NW of Virgil, Canada | M2.8 | 132 km | 7 km |
| Mar 8, 2008 | 5 km ENE of Clarence Center, New York | M2.7 | 126 km | 6 km |
| Dec 21, 2009 | 10 km NNE of Olcott, New York | M2.7 | 90 km | 8 km |
| Aug 11, 2007 | 4 km N of Kingston, Canada | M2.6 | 127 km | 4 km |
| Mar 29, 2020 | 11 km N of Lyndonville, New York | M2.6 | 79 km | 5 km |
| Apr 11, 2007 | 6 km NNE of Sodus Point, New York | M2.6 | 122 km | 7 km |
| Sep 20, 2009 | 20 km ESE of Oakville, Canada | M2.6 | 137 km | 4 km |
| Jul 11, 2017 | 11 km NNW of Barker, New York | M2.5 | 86 km | 5 km |
| Feb 13, 2014 | 34 km N of Lyndonville, New York | M2.5 | 58 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 18°F (-8°C) | 3.1 in | Coldest |
| February | 20°F (-7°C) | 2.1 in | Driest |
| March | 29°F (-2°C) | 2.3 in | |
| April | 42°F (6°C) | 2.9 in | |
| May | 54°F (12°C) | 3.2 in | |
| June | 63°F (17°C) | 3.4 in | |
| July | 68°F (20°C) | 2.7 in | Warmest |
| August | 66°F (19°C) | 3.2 in | |
| September | 58°F (15°C) | 3.8 in | |
| October | 47°F (8°C) | 3.2 in | |
| November | 36°F (2°C) | 3.8 in | Wettest |
| December | 24°F (-4°C) | 3.0 in |
Alnwick/Haldimand has a seasonal temperature swing of 50°F / from 18°F in January to 68°F in July. Total annual precipitation is 36.4 inches, with November being the wettest month (3.8") and February the driest (2.1").