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Plain City, OH
Full City Profile · Ohio · Union County County
3.5
/5.0
B+
Good
3,712
Population
1,209/sq mi density
$87,018
Median Income
$43,528 per capita
$325,400
Home Value
$530,407 Zillow
$1,044
Median Rent
22.6% income on rent
52°F
Avg Temperature
275 sunny days/yr
18
Violent Crime/100K
1,073 property/100K
B+
Overall
3.5 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.7 / 5.0
$87,018 median income, 2.3% unemployment
A+
Affordability
4.6 / 5.0
$325,400 home value, $1,044/mo rent
F
Safety
1.0 / 5.0
18 violent crimes/100K
B+
Education
3.7 / 5.0
34.3% bachelor's degree or higher
Plain City experiences four distinct seasons with an average annual temperature of 52°F (11°C). Winters average 28°F in January while summers reach 75°F in July. The area gets 275 sunny days per year. Annual precipitation totals 40.5 inches. The area receives 24.0 inches of snow annually. Air quality is rated Good with a median AQI of 43.
Temperature
28°F Jan (-2°C)
75°F Jul (24°C)
| Annual Average | 52.4°F |
| 3% below US avg | |
| January Average | 28°F (-2°C) |
| July Average | 75°F (24°C) |
| Sunny Days | 275 days/yr |
Geography
| Elevation | 937 ft (286 m) |
| Area | 2.4 sq mi (6.2 km²) |
| Population Density | 1,209/sq mi |
| Coordinates | 40.1075°N, 83.2736°W |
| Timezone | America/New_York |
| County | Union County County |
| Nearest Airport | John Glenn Columbus International (CMH) 22 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 43.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 32.7 / 100 |
| Social Vulnerability | 10.6 / 100 |
| Community Resilience | 97.5 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Relatively Low |
| Strong Wind | Relatively Low |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively Low |
| Ice Storm | Relatively Moderate |
| Drought | Relatively Low |
| Cold Wave | Very Low |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 28°F (-2°C) | 2.1 in | Coldest |
| February | 29°F (-2°C) | 2.1 in | Driest |
| March | 40°F (4°C) | 3.0 in | |
| April | 50°F (10°C) | 3.4 in | |
| May | 61°F (16°C) | 4.0 in | Wettest |
| June | 69°F (21°C) | 3.9 in | |
| July | 75°F (24°C) | 4.0 in | Warmest |
| August | 71°F (22°C) | 3.5 in | |
| September | 65°F (18°C) | 3.0 in | |
| October | 53°F (12°C) | 2.4 in | |
| November | 42°F (6°C) | 3.1 in | |
| December | 32°F (0°C) | 2.8 in |
Plain City has a seasonal temperature swing of 47°F / from 28°F in January to 75°F in July. Total annual precipitation is 37.3 inches, with May being the wettest month (4.0") and February the driest (2.1").