Weather & Climate in McMechen, WV
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
McMechen experiences four distinct seasons with an average annual temperature of 53°F (12°C). Winters average 30°F in January while summers reach 74°F in July. Annual precipitation totals 41.9 inches. The area receives 15.8 inches of snow annually, a moderate snowfall amount. Air quality is rated Good with a median AQI of 39. 74% of days have good air quality. The city sits at an elevation of 670 feet.
Temperature
30°F Jan (-1°C)
74°F Jul (24°C)
| Annual Average | 53.1°F |
| 2% below US avg | |
| January Average | 30°F (-1°C) |
| July Average | 74°F (24°C) |
Geography
| Elevation | 670 ft (204 m) |
| Area | 0.8 sq mi (2.2 km²) |
| Population Density | 3,044/sq mi |
| Coordinates | 39.9865°N, 80.7335°W |
| Timezone | America/New_York |
| County | Marshall County County |
| Nearest Airport | Pittsburgh International (PIT) 44 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 39.0 |
| Rating | Good |
| Good Days % | 74.4% |
| Unhealthy Days | 0 |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 56.8 / 100 |
| Social Vulnerability | 49.7 / 100 |
| Community Resilience | 69.0 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| Hail | Relatively Low |
| Strong Wind | Relatively Low |
| Heat Wave | Very Low |
| Winter Weather | Very Low |
| Lightning | Relatively Low |
| Ice Storm | Relatively Low |
| Drought | Relatively Low |
| Cold Wave | Very Low |
| Landslide | Relatively Moderate |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
24 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.5.
| Nov 20, 2013 | 2 km SW of Buchtel, Ohio | M3.5 | 140 km | 8 km |
| Mar 31, 2013 | West Virginia | M3.4 | 149 km | 8 km |
| Jun 3, 2017 | 1 km WNW of Batesville, Ohio | M3.4 | 48 km | 2 km |
| Apr 24, 2025 | 3 km S of Pleasant City, Ohio | M3.1 | 70 km | 6 km |
| Apr 22, 2025 | 3 km ESE of Buffalo, Ohio | M3.1 | 65 km | 5 km |
| Aug 31, 2011 | 3 km SE of Lowell, Ohio | M3.1 | 82 km | 5 km |
| Apr 2, 2017 | 5 km W of Graysville, Ohio | M3.0 | 56 km | 4 km |
| Mar 30, 2024 | 2 km SSW of Maple Ridge, Ohio | M3.0 | 105 km | 6 km |
| Aug 7, 2000 | 2 km S of Limaville, Ohio | M2.9 | 114 km | 5 km |
| May 9, 2025 | 3 km S of Pleasant City, Ohio | M2.9 | 70 km | 5 km |
| Feb 3, 2025 | 0 km NE of Reno, Ohio | M2.8 | 88 km | 10 km |
| Aug 31, 2011 | 2 km NNW of Belmont, West Virginia | M2.8 | 80 km | 5 km |
| Apr 29, 2025 | 1 km SE of Pleasant City, Ohio | M2.8 | 69 km | 2 km |
| Jul 30, 2013 | 12 km SSW of Glenville, West Virginia | M2.8 | 128 km | 13 km |
| Jul 20, 2013 | 6 km SW of Glenville, West Virginia | M2.7 | 122 km | 21 km |
| Apr 29, 2010 | 7 km W of Gassaway, West Virginia | M2.7 | 147 km | 0 km |
| Sep 4, 2011 | 3 km N of Saint Marys, West Virginia | M2.6 | 75 km | 5 km |
| Aug 16, 2013 | 13 km SW of Glenville, West Virginia | M2.6 | 129 km | 6 km |
| Apr 29, 2010 | 3 km WNW of Gassaway, West Virginia | M2.6 | 145 km | 0 km |
| Aug 21, 2010 | 19 km WNW of Helvetia, West Virginia | M2.5 | 136 km | 11 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Tornado History
215 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 16 fatalities, 410 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Oct 1, 1986 | EF3 | 76 km | 1.0 mi | 0 |
| May 31, 1985 | EF3 | 95 km | 39.0 mi | 9 |
| Jun 3, 1980 | EF3 | 88 km | 29.8 mi | 0 |
| Oct 12, 1978 | EF3 | 92 km | 7.3 mi | 0 |
| May 8, 1969 | EF3 | 53 km | 2.0 mi | 1 |
| Aug 3, 1963 | EF3 | 82 km | 0.1 mi | 2 |
| May 11, 2024 | EF2 | 65 km | 5.8 mi | 0 |
| May 7, 2024 | EF2 | 67 km | 15.3 mi | 0 |
| Feb 28, 2024 | EF2 | 40 km | 4.1 mi | 0 |
| Aug 1, 2022 | EF2 | 17 km | 1.8 mi | 0 |
| Oct 21, 2021 | EF2 | 33 km | 15.7 mi | 0 |
| Jul 29, 2021 | EF2 | 33 km | 2.7 mi | 0 |
| Jul 29, 2021 | EF2 | 75 km | 6.2 mi | 0 |
| Mar 23, 2011 | EF2 | 91 km | 9.0 mi | 0 |
| Nov 12, 2003 | EF2 | 84 km | 3.5 mi | 0 |
| May 23, 2000 | EF2 | 50 km | 3.0 mi | 0 |
| Jun 27, 1998 | EF2 | 59 km | 0.3 mi | 1 |
| Jun 2, 1998 | EF2 | 96 km | 12.0 mi | 0 |
| Jun 30, 1990 | EF2 | 52 km | 0.2 mi | 0 |
| Oct 1, 1986 | EF2 | 84 km | 4.5 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950-2024, US only).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 30°F (-1°C) | 3.4 in | Coldest |
| February | 33°F (0°C) | 2.7 in | Driest |
| March | 41°F (5°C) | 3.8 in | |
| April | 52°F (11°C) | 3.5 in | |
| May | 62°F (17°C) | 4.2 in | |
| June | 70°F (21°C) | 4.3 in | Wettest |
| July | 74°F (24°C) | 4.1 in | Warmest |
| August | 74°F (23°C) | 3.2 in | |
| September | 67°F (20°C) | 3.5 in | |
| October | 55°F (13°C) | 2.9 in | |
| November | 44°F (7°C) | 2.9 in | |
| December | 35°F (2°C) | 3.4 in |
McMechen has a seasonal temperature swing of 44°F / from 30°F in January to 74°F in July. Total annual precipitation is 41.9 inches, with June being the wettest month (4.3") and February the driest (2.7").