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. 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) |
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").