Lake Seneca, OH
Full City Profile · Ohio · Williams County County
4.2
/5.0
A
Great
558
Population
393/sq mi density
$83,839
Median Income
$38,883 per capita
$191,900
Home Value
$170,164 Zillow
49°F
Avg Temperature
A
Overall
4.2 / 5.0
Strong
A+
Economy
4.7 / 5.0
$83,839 median income, 0.0% unemployment
A+
Affordability
5.0 / 5.0
$191,900 home value, /mo rent
C+
Education
2.9 / 5.0
24.2% bachelor's degree or higher
Lake Seneca experiences four distinct seasons with an average annual temperature of 49°F (9°C). Winters average 24°F in January while summers reach 73°F in July. Annual precipitation totals 37.9 inches. The area receives 32.5 inches of snow annually.
Temperature
24°F Jan (-4°C)
73°F Jul (23°C)
| Annual Average | 49.1°F |
| 9% below US avg | |
| January Average | 24°F (-4°C) |
| July Average | 73°F (23°C) |
Geography
| Elevation | 908 ft (277 m) |
| Area | 1.4 sq mi (3.7 km²) |
| Population Density | 393/sq mi |
| Coordinates | 41.6658°N, 84.6472°W |
| Timezone | America/New_York |
| County | Williams County County |
| Nearest Airport | Fort Wayne International (FWA) 55 miles away |
Precipitation & Snow
Air Quality
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 44.4 / 100 |
| Social Vulnerability | 56.9 / 100 |
| Community Resilience | 79.5 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Relatively Moderate |
| Strong Wind | Relatively Moderate |
| Heat Wave | Very Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively Low |
| Ice Storm | Relatively Moderate |
| Drought | Relatively Low |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 24°F (-4°C) | 2.4 in | Coldest |
| February | 27°F (-3°C) | 2.2 in | Driest |
| March | 36°F (2°C) | 2.6 in | |
| April | 48°F (9°C) | 3.6 in | |
| May | 59°F (15°C) | 4.3 in | Wettest |
| June | 69°F (21°C) | 3.8 in | |
| July | 73°F (23°C) | 3.5 in | Warmest |
| August | 71°F (21°C) | 4.1 in | |
| September | 64°F (18°C) | 3.1 in | |
| October | 52°F (11°C) | 2.8 in | |
| November | 39°F (4°C) | 3.1 in | |
| December | 30°F (-1°C) | 2.4 in |
Lake Seneca has a seasonal temperature swing of 49°F / from 24°F in January to 73°F in July. Total annual precipitation is 37.9 inches, with May being the wettest month (4.3") and February the driest (2.2").