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Weather & Climate in Marion, OH
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Marion 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 39.4 inches. The area receives 23.8 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 991 feet.
Temperature
26°F Jan (-3°C)
73°F Jul (23°C)
| Annual Average | 50.6°F |
| 6% below US avg | |
| January Average | 26°F (-3°C) |
| July Average | 73°F (23°C) |
| Sunny Days | 275 days/yr |
Geography
| Elevation | 991 ft (302 m) |
| Area | 11.8 sq mi (30.6 km²) |
| Population Density | 2,760/sq mi |
| Coordinates | 40.5967°N, 83.1232°W |
| Timezone | America/New_York |
| County | Marion County County |
| Nearest Airport | Mansfield Lahm Regional (MFD) 35 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 43.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 61.1 / 100 |
| Social Vulnerability | 56.4 / 100 |
| Community Resilience | 77.5 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Relatively Moderate |
| Strong Wind | Relatively High |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively Moderate |
| Drought | No Rating |
| Cold Wave | Relatively Moderate |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
14 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.0.
| Nov 20, 2013 | 2 km SW of Buchtel, Ohio | M3.5 | 150 km | 8 km |
| Apr 17, 1990 | 8 km NW of Fort Recovery, Ohio | M3.0 | 147 km | 5 km |
| Jun 5, 2011 | 5 km W of Lodi, Ohio | M3.0 | 100 km | 5 km |
| Apr 4, 1994 | 2 km WNW of Minster, Ohio | M2.9 | 110 km | 5 km |
| May 12, 2006 | 2 km E of Lima, Ohio | M2.8 | 82 km | 5 km |
| Apr 12, 2007 | 11 km NW of Put-in-Bay, Ohio | M2.8 | 126 km | 5 km |
| May 14, 2010 | 1 km ENE of Gibsonburg, Ohio | M2.7 | 89 km | 5 km |
| Nov 25, 1998 | 1 km SSW of New London, Ohio | M2.7 | 80 km | 5 km |
| Jun 12, 2015 | 6 km NW of Convoy, Ohio | M2.6 | 144 km | 5 km |
| May 20, 2023 | 3 km SSE of Walbridge, Ohio | M2.6 | 111 km | 6 km |
| Jan 30, 2004 | 2 km S of Rockford, Ohio | M2.5 | 129 km | 5 km |
| Jun 4, 1990 | 4 km SSE of Van Buren, Ohio | M2.5 | 71 km | 5 km |
| Mar 18, 2024 | 4 km WSW of Millbury, Ohio | M2.5 | 110 km | 6 km |
| Sep 7, 2012 | 17 km ESE of Stony Point, Michigan | M2.5 | 141 km | 5 km |
| Feb 7, 2016 | 6 km W of Put-in-Bay, Ohio | M2.5 | 119 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
428 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 54 fatalities, 1,071 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Apr 11, 1965 | EF4 | 94 km | 32.5 mi | 13 |
| Jun 8, 1953 | EF4 | 95 km | 118.0 mi | 17 |
| Mar 14, 2024 | EF3 | 89 km | 31.3 mi | 3 |
| Nov 10, 2002 | EF3 | 56 km | 21.0 mi | 1 |
| Nov 10, 2002 | EF3 | 45 km | 9.0 mi | 0 |
| May 31, 1985 | EF3 | 59 km | 29.0 mi | 1 |
| Jun 13, 1981 | EF3 | 22 km | 3.8 mi | 4 |
| May 10, 1973 | EF3 | 75 km | 50.1 mi | 6 |
| May 10, 1973 | EF3 | 72 km | 89.6 mi | 0 |
| Jun 2, 1971 | EF3 | 91 km | 39.6 mi | 0 |
| Jun 2, 1971 | EF3 | 82 km | 31.5 mi | 0 |
| May 24, 1971 | EF3 | 69 km | 1.0 mi | 0 |
| Feb 22, 1971 | EF3 | 72 km | 6.8 mi | 0 |
| Apr 11, 1965 | EF3 | 53 km | 15.0 mi | 4 |
| Jul 28, 1961 | EF3 | 97 km | 0.5 mi | 0 |
| Jul 19, 1950 | EF3 | 82 km | 9.7 mi | 0 |
| Jun 5, 2024 | EF2 | 99 km | 1.3 mi | 0 |
| Mar 14, 2024 | EF2 | 49 km | 10.3 mi | 0 |
| Mar 14, 2024 | EF2 | 42 km | 19.5 mi | 0 |
| Feb 28, 2024 | EF2 | 69 km | 14.0 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 26°F (-3°C) | 2.1 in | Coldest |
| February | 27°F (-3°C) | 1.9 in | Driest |
| March | 38°F (3°C) | 2.8 in | |
| April | 48°F (9°C) | 3.5 in | |
| May | 59°F (15°C) | 4.1 in | |
| June | 68°F (20°C) | 3.9 in | |
| July | 73°F (23°C) | 4.1 in | Warmest, Wettest |
| August | 71°F (21°C) | 3.5 in | |
| September | 64°F (18°C) | 3.2 in | |
| October | 53°F (12°C) | 2.4 in | |
| November | 42°F (5°C) | 3.1 in | |
| December | 31°F (-0°C) | 2.8 in |
Marion has a seasonal temperature swing of 47°F / from 26°F in January to 73°F in July. Total annual precipitation is 37.4 inches, with July being the wettest month (4.1") and February the driest (1.9").