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Mason, OH
Full City Profile · Ohio · Warren County County
4.0
/5.0
A
Great
35,148
Population
1,804/sq mi density
$124,407
Median Income
$61,336 per capita
$397,900
Home Value
$498,792 Zillow
$1,670
Median Rent
23.0% income on rent
54°F
Avg Temperature
297 sunny days/yr
29
Violent Crime/100K
642 property/100K
A
Overall
4.0 / 5.0
Strong
A+
Economy
5.0 / 5.0
$124,407 median income, 1.6% unemployment
A+
Affordability
4.9 / 5.0
$397,900 home value, $1,670/mo rent
F
Safety
1.0 / 5.0
29 violent crimes/100K
A+
Education
5.0 / 5.0
61.6% bachelor's degree or higher
Mason experiences four distinct seasons with an average annual temperature of 54°F (12°C). Winters average 30°F in January while summers reach 75°F in July. The area gets 297 sunny days per year. Air quality is rated Good with a median AQI of 43.
Temperature
30°F Jan (-1°C)
75°F Jul (24°C)
| Annual Average | 53.8°F |
| 0% below US avg | |
| January Average | 30°F (-1°C) |
| July Average | 75°F (24°C) |
| Sunny Days | 297 days/yr |
Geography
| Elevation | 837 ft (255 m) |
| Area | 18.7 sq mi (48.3 km²) |
| Population Density | 1,804/sq mi |
| Coordinates | 39.3517°N, 84.3020°W |
| Timezone | America/New_York |
| County | Warren County County |
| Nearest Airport | Butler County Regional/Hogan Field (HAO) 12 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 43.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0491 ppm |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 77.8 / 100 |
| Social Vulnerability | 10.6 / 100 |
| Community Resilience | 89.6 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| Hail | Relatively Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively High |
| Ice Storm | Relatively High |
| Drought | Relatively Low |
| Cold Wave | Relatively Moderate |
| Landslide | Relatively Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 30°F (-1°C) | 2.6 in | Coldest |
| February | 31°F (-0°C) | 2.5 in | Driest |
| March | 42°F (5°C) | 3.8 in | |
| April | 52°F (11°C) | 3.9 in | |
| May | 62°F (17°C) | 4.6 in | Wettest |
| June | 71°F (21°C) | 3.5 in | |
| July | 75°F (24°C) | 4.2 in | Warmest |
| August | 73°F (23°C) | 3.6 in | |
| September | 66°F (19°C) | 3.2 in | |
| October | 54°F (12°C) | 2.9 in | |
| November | 43°F (6°C) | 3.4 in | |
| December | 33°F (1°C) | 3.0 in |
Mason has a seasonal temperature swing of 45°F / from 30°F in January to 75°F in July. Total annual precipitation is 41.3 inches, with May being the wettest month (4.6") and February the driest (2.5").