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Weather & Climate in Idamay, WV
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Idamay experiences four distinct seasons with an average annual temperature of 54°F (12°C). Winters average 32°F in January while summers reach 74°F in July. The area gets 293 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 47.8 inches (wetter than the 38-inch national average). Air quality is rated Good with a median AQI of 39. The city sits at an elevation of 1,367 feet.
Temperature
32°F Jan (-0°C)
74°F Jul (23°C)
| Annual Average | 53.6°F |
| 1% below US avg | |
| January Average | 32°F (-0°C) |
| July Average | 74°F (23°C) |
| Sunny Days | 293 days/yr |
Geography
| Elevation | 1,367 ft (417 m) |
| Area | 0.9 sq mi (2.3 km²) |
| Population Density | 722/sq mi |
| Coordinates | 39.4925°N, 80.2547°W |
| Timezone | America/New_York |
| County | Marion County County |
| Nearest Airport | Mid-Ohio Valley Regional (PKB) 64 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 39.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 71.5 / 100 |
| Social Vulnerability | 41.9 / 100 |
| Community Resilience | 76.4 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Relatively Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| Hail | Relatively Low |
| Strong Wind | Relatively Low |
| Heat Wave | Very Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively Low |
| Drought | Very Low |
| Cold Wave | Very Low |
| Landslide | Relatively Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
26 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.4.
| Mar 31, 2013 | West Virginia | M3.4 | 107 km | 8 km |
| Apr 4, 2010 | 14 km SW of Gassaway, West Virginia | M3.4 | 115 km | 0 km |
| Jun 3, 2017 | 1 km WNW of Batesville, Ohio | M3.4 | 101 km | 2 km |
| Apr 24, 2025 | 3 km S of Pleasant City, Ohio | M3.1 | 118 km | 6 km |
| Apr 22, 2025 | 3 km ESE of Buffalo, Ohio | M3.1 | 114 km | 5 km |
| Aug 31, 2011 | 3 km SE of Lowell, Ohio | M3.1 | 104 km | 5 km |
| Apr 2, 2017 | 5 km W of Graysville, Ohio | M3.0 | 87 km | 4 km |
| May 9, 2025 | 3 km S of Pleasant City, Ohio | M2.9 | 118 km | 5 km |
| Feb 3, 2025 | 0 km NE of Reno, Ohio | M2.8 | 98 km | 10 km |
| Apr 29, 2025 | 1 km SE of Pleasant City, Ohio | M2.8 | 118 km | 2 km |
| Aug 31, 2011 | 2 km NNW of Belmont, West Virginia | M2.8 | 88 km | 5 km |
| Jul 30, 2013 | 12 km SSW of Glenville, West Virginia | M2.8 | 92 km | 13 km |
| Jan 10, 2012 | 14 km WNW of Birch River, West Virginia | M2.8 | 117 km | 0 km |
| Jul 20, 2013 | 6 km SW of Glenville, West Virginia | M2.7 | 86 km | 21 km |
| Apr 29, 2010 | 7 km W of Gassaway, West Virginia | M2.7 | 106 km | 0 km |
| Sep 4, 2011 | 3 km N of Saint Marys, West Virginia | M2.6 | 82 km | 5 km |
| Aug 16, 2013 | 13 km SW of Glenville, West Virginia | M2.6 | 93 km | 6 km |
| Apr 29, 2010 | 3 km WNW of Gassaway, West Virginia | M2.6 | 102 km | 0 km |
| May 7, 2010 | 14 km WSW of Gassaway, West Virginia | M2.6 | 114 km | 0 km |
| Jun 6, 2014 | 13 km NNE of Sissonville, West Virginia | M2.6 | 149 km | 30 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
128 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 4 fatalities, 165 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Oct 1, 1986 | EF3 | 50 km | 1.0 mi | 0 |
| Jun 3, 1980 | EF3 | 31 km | 29.8 mi | 0 |
| May 19, 1967 | EF3 | 80 km | 0.3 mi | 1 |
| Aug 3, 1963 | EF3 | 97 km | 0.1 mi | 2 |
| May 11, 2024 | EF2 | 88 km | 5.8 mi | 0 |
| Feb 28, 2024 | EF2 | 84 km | 4.1 mi | 0 |
| Aug 25, 2023 | EF2 | 85 km | 2.0 mi | 0 |
| Aug 1, 2022 | EF2 | 64 km | 1.8 mi | 0 |
| Oct 21, 2021 | EF2 | 85 km | 15.7 mi | 0 |
| Mar 23, 2011 | EF2 | 98 km | 9.0 mi | 0 |
| Jun 2, 1998 | EF2 | 59 km | 12.0 mi | 0 |
| Jun 2, 1998 | EF2 | 96 km | 15.0 mi | 0 |
| Jun 30, 1990 | EF2 | 70 km | 0.2 mi | 0 |
| Oct 1, 1986 | EF2 | 64 km | 4.5 mi | 0 |
| May 22, 1983 | EF2 | 93 km | 38.0 mi | 0 |
| Jul 28, 1981 | EF2 | 90 km | 6.2 mi | 0 |
| Jun 21, 1981 | EF2 | 9 km | 1.0 mi | 0 |
| Jul 9, 1980 | EF2 | 90 km | 0.3 mi | 0 |
| Jun 20, 1977 | EF2 | 61 km | 8.5 mi | 0 |
| Jul 13, 1971 | EF2 | 48 km | 16.0 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 32°F (-0°C) | 3.0 in | Coldest |
| February | 32°F (0°C) | 2.8 in | Driest |
| March | 41°F (5°C) | 4.0 in | |
| April | 51°F (10°C) | 3.6 in | |
| May | 60°F (16°C) | 4.2 in | |
| June | 68°F (20°C) | 4.1 in | |
| July | 74°F (23°C) | 4.5 in | Warmest, Wettest |
| August | 71°F (22°C) | 4.2 in | |
| September | 65°F (18°C) | 3.3 in | |
| October | 53°F (12°C) | 3.0 in | |
| November | 43°F (6°C) | 3.5 in | |
| December | 34°F (1°C) | 3.3 in |
Idamay has a seasonal temperature swing of 42°F / from 32°F in January to 74°F in July. Total annual precipitation is 43.5 inches, with July being the wettest month (4.5") and February the driest (2.8").