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Weather & Climate in Norwich, ON
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Norwich experiences four distinct seasons with an average annual temperature of 46°F (8°C). Winters average 21°F in January while summers reach 69°F in July. The area gets 266 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 38.4 inches. The area receives 11.2 inches of snow annually. The city sits at an elevation of 866 feet.
Temperature
21°F Jan (-6°C)
69°F Jul (21°C)
| Annual Average | 46.1°F |
| 15% below US avg | |
| January Average | 21°F (-6°C) |
| July Average | 69°F (21°C) |
| Sunny Days | 266 days/yr |
Geography
| Elevation | 866 ft (264 m) |
| Area | 163.7 sq mi (424.0 km²) |
| Population Density | 68/sq mi |
| Coordinates | 42.9877°N, 80.5976°W |
| Timezone | America/Toronto |
Precipitation & Snow
Air Quality
Earthquake History
26 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.9.
| Jan 26, 2001 | 8 km NNW of Edgewood, Ohio | M3.9 | 118 km | 5 km |
| Feb 6, 2023 | 1 km NE of West Seneca, New York | M3.8 | 148 km | 6 km |
| Jun 30, 2003 | 6 km NW of Perry, Ohio | M3.6 | 141 km | 5 km |
| Aug 28, 2023 | 7 km SE of Madison, Ohio | M3.6 | 143 km | 5 km |
| Oct 16, 1993 | 8 km SSE of Madison, Ohio | M3.6 | 147 km | 5 km |
| Mar 15, 1992 | 15 km NW of North Perry, Ohio | M3.5 | 131 km | 5 km |
| Jun 20, 2006 | 9 km WNW of North Perry, Ohio | M3.5 | 138 km | 5 km |
| Jun 3, 2001 | 3 km N of Edgewood, Ohio | M3.4 | 121 km | 5 km |
| Jun 30, 2004 | 2 km WNW of Madison, Ohio | M3.3 | 140 km | 5 km |
| Jul 1, 2013 | 5 km NNW of Fairport Harbor, Ohio | M3.2 | 145 km | 5 km |
| Mar 11, 2006 | 8 km NNW of Mentor-on-the-Lake, Ohio | M3.1 | 149 km | 5 km |
| May 25, 1995 | 3 km NW of Amherst, New York | M3.0 | 144 km | 5 km |
| Apr 25, 2010 | 2 km WNW of Madison, Ohio | M3.0 | 140 km | 5 km |
| Jun 16, 2004 | 11 km NNW of Angola on the Lake, New York | M2.9 | 126 km | 6 km |
| Feb 23, 1995 | 3 km W of Ashtabula, Ohio | M2.9 | 126 km | 5 km |
| Sep 22, 1999 | 16 km NW of Mentor-on-the-Lake, Ohio | M2.8 | 148 km | 18 km |
| Mar 28, 2005 | 16 km NW of Virgil, Canada | M2.8 | 113 km | 7 km |
| Apr 28, 2002 | Ohio | M2.7 | 142 km | 5 km |
| Feb 14, 2009 | 4 km WSW of Geneva-on-the-Lake, Ohio | M2.6 | 132 km | 5 km |
| Jan 5, 2024 | 3 km SE of Madison, Ohio | M2.6 | 142 km | 9 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Tsunami History
2 tsunamis recorded within 500 km. Highest wave on record: 2.7 m (9 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1823 | LAKE ERIE | Unknown | 2.7 m | - | 84 km |
| 1952 | LAKE HURON, MI | Avalanche | 1.5 m | - | 147 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 21°F (-6°C) | 2.7 in | Coldest |
| February | 22°F (-5°C) | 2.2 in | Driest |
| March | 32°F (-0°C) | 2.9 in | |
| April | 44°F (7°C) | 3.4 in | |
| May | 56°F (13°C) | 3.2 in | |
| June | 65°F (18°C) | 3.3 in | |
| July | 69°F (21°C) | 3.4 in | Warmest |
| August | 68°F (20°C) | 3.4 in | |
| September | 61°F (16°C) | 3.5 in | |
| October | 49°F (10°C) | 3.2 in | |
| November | 39°F (4°C) | 3.8 in | Wettest |
| December | 28°F (-2°C) | 3.4 in |
Norwich has a seasonal temperature swing of 48°F / from 21°F in January to 69°F in July. Total annual precipitation is 38.4 inches, with November being the wettest month (3.8") and February the driest (2.2").