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Weather & Climate in Greenwich, OH
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Greenwich experiences four distinct seasons with an average annual temperature of 51°F (10°C). Winters average 26°F in January while summers reach 73°F in July. The area gets 275 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 40.1 inches. The area receives 32.7 inches of snow annually, a moderate snowfall amount. Air quality is rated Good with a median AQI of 43. The city sits at an elevation of 1,037 feet.
Temperature
26°F Jan (-3°C)
73°F Jul (23°C)
| Annual Average | 50.5°F |
| 6% below US avg | |
| January Average | 26°F (-3°C) |
| July Average | 73°F (23°C) |
| Sunny Days | 275 days/yr |
Geography
| Elevation | 1,037 ft (316 m) |
| Area | 1.4 sq mi (3.5 km²) |
| Population Density | 838/sq mi |
| Coordinates | 41.0314°N, 82.5188°W |
| Timezone | America/New_York |
| County | Huron County County |
| Nearest Airport | Mansfield Lahm Regional (MFD) 15 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 43.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 50.3 / 100 |
| Social Vulnerability | 37.7 / 100 |
| Community Resilience | 77.6 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Relatively Moderate |
| Strong Wind | Relatively Moderate |
| Heat Wave | Very Low |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively High |
| Ice Storm | Relatively Moderate |
| Drought | No Rating |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
41 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.0.
| Jun 10, 2019 | 1 km NW of Timberlake, Ohio | M4.0 | 114 km | 2 km |
| Mar 12, 2007 | Ohio | M3.7 | 99 km | 5 km |
| Jun 30, 2003 | 6 km NW of Perry, Ohio | M3.6 | 139 km | 5 km |
| Oct 16, 1993 | 8 km SSE of Madison, Ohio | M3.6 | 146 km | 5 km |
| Mar 15, 1992 | 15 km NW of North Perry, Ohio | M3.5 | 144 km | 5 km |
| Jun 20, 2006 | 9 km WNW of North Perry, Ohio | M3.5 | 140 km | 5 km |
| Jan 26, 1991 | 1 km NNE of Mayfield Heights, Ohio | M3.4 | 105 km | 5 km |
| Apr 20, 2018 | Michigan | M3.4 | 128 km | 3 km |
| Jun 30, 2004 | 2 km WNW of Madison, Ohio | M3.3 | 146 km | 5 km |
| Jul 1, 2013 | 5 km NNW of Fairport Harbor, Ohio | M3.2 | 133 km | 5 km |
| Mar 11, 2006 | 8 km NNW of Mentor-on-the-Lake, Ohio | M3.1 | 126 km | 5 km |
| Jan 9, 2008 | 6 km WNW of Mentor-on-the-Lake, Ohio | M3.1 | 119 km | 5 km |
| Feb 23, 2011 | 18 km NE of Leamington, Canada | M3.0 | 125 km | 5 km |
| Mar 30, 2024 | 2 km SSW of Maple Ridge, Ohio | M3.0 | 124 km | 6 km |
| Jun 5, 2011 | 5 km W of Lodi, Ohio | M3.0 | 37 km | 5 km |
| Apr 25, 2010 | 2 km WNW of Madison, Ohio | M3.0 | 146 km | 5 km |
| Aug 7, 2000 | 2 km S of Limaville, Ohio | M2.9 | 115 km | 5 km |
| Apr 12, 2007 | 11 km NW of Put-in-Bay, Ohio | M2.8 | 84 km | 5 km |
| Jan 4, 2022 | 3 km NW of Timberlake, Ohio | M2.8 | 114 km | 5 km |
| May 12, 2006 | 2 km E of Lima, Ohio | M2.8 | 135 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
383 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 44 fatalities, 754 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Apr 11, 1965 | EF4 | 32 km | 22.0 mi | 18 |
| Nov 10, 2002 | EF3 | 55 km | 21.0 mi | 1 |
| Jul 12, 1992 | EF3 | 49 km | 7.0 mi | 0 |
| Jul 12, 1992 | EF3 | 88 km | 8.0 mi | 0 |
| May 31, 1985 | EF3 | 97 km | 29.0 mi | 1 |
| May 2, 1983 | EF3 | 80 km | 12.0 mi | 1 |
| Jun 13, 1981 | EF3 | 67 km | 3.8 mi | 4 |
| Jun 3, 1973 | EF3 | 93 km | 12.9 mi | 0 |
| May 10, 1973 | EF3 | 79 km | 50.1 mi | 6 |
| Sep 29, 1966 | EF3 | 93 km | 4.5 mi | 0 |
| Apr 11, 1965 | EF3 | 51 km | 15.0 mi | 4 |
| Mar 14, 2024 | EF2 | 27 km | 10.3 mi | 0 |
| Aug 24, 2023 | EF2 | 95 km | 1.5 mi | 0 |
| Jun 15, 2023 | EF2 | 72 km | 3.4 mi | 0 |
| Jun 15, 2023 | EF2 | 26 km | 8.7 mi | 0 |
| Apr 14, 2019 | EF2 | 26 km | 17.0 mi | 0 |
| Nov 5, 2017 | EF2 | 42 km | 0.6 mi | 0 |
| Nov 5, 2017 | EF2 | 41 km | 1.1 mi | 0 |
| Sep 4, 2017 | EF2 | 40 km | 16.7 mi | 0 |
| Sep 16, 2010 | EF2 | 55 km | 11.5 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 26°F (-3°C) | 2.2 in | Coldest |
| February | 26°F (-3°C) | 1.9 in | Driest |
| March | 37°F (3°C) | 2.8 in | |
| April | 47°F (9°C) | 3.4 in | |
| May | 58°F (15°C) | 3.8 in | |
| June | 68°F (20°C) | 4.1 in | Wettest |
| July | 73°F (23°C) | 3.9 in | Warmest |
| August | 70°F (21°C) | 3.7 in | |
| September | 63°F (17°C) | 3.3 in | |
| October | 52°F (11°C) | 2.4 in | |
| November | 41°F (5°C) | 3.2 in | |
| December | 30°F (-1°C) | 2.8 in |
Greenwich has a seasonal temperature swing of 47°F / from 26°F in January to 73°F in July. Total annual precipitation is 37.5 inches, with June being the wettest month (4.1") and February the driest (1.9").