Three Mile Bay, NY
Full City Profile · New York · Jefferson County County
4.0
/5.0
A
Great
40
Population
143/sq mi density
$34,875
Median Income
$18,675 per capita
$202,500
Home Value
$272,912 Zillow
45°F
Avg Temperature
A
Overall
4.0 / 5.0
Strong
B+
Economy
3.7 / 5.0
$34,875 median income, 0.0% unemployment
B
Affordability
3.4 / 5.0
$202,500 home value, /mo rent
A+
Education
5.0 / 5.0
0.0% bachelor's degree or higher
Three Mile Bay has a cool climate with an average annual temperature of 45°F (7°C). Winters average 20°F in January while summers reach 69°F in July. Annual precipitation totals 37.1 inches. The area receives 116.4 inches of snow annually. Air quality is rated Good with a median AQI of 32.
Temperature
20°F Jan (-7°C)
69°F Jul (21°C)
| Annual Average | 45.3°F |
| 16% below US avg | |
| January Average | 20°F (-7°C) |
| July Average | 69°F (21°C) |
Geography
| Elevation | 269 ft (82 m) |
| Area | 0.3 sq mi (0.7 km²) |
| Population Density | 143/sq mi |
| Coordinates | 44.0849°N, 76.1975°W |
| Timezone | America/New_York |
| County | Jefferson County County |
| Nearest Airport | Watertown International (ART) 11 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 32.0 |
| Rating | Good |
| Good Days % | 97.0% |
| Unhealthy Days | 0 |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0397 ppm |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 64.0 / 100 |
| Social Vulnerability | 28.3 / 100 |
| Community Resilience | 62.9 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| Hail | Very Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Very Low |
| Winter Weather | Relatively High |
| Lightning | Relatively Low |
| Ice Storm | Relatively Moderate |
| Drought | No Rating |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
| Coastal Flood | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 20°F (-7°C) | 2.9 in | Coldest |
| February | 21°F (-6°C) | 2.2 in | Driest |
| March | 30°F (-1°C) | 2.4 in | |
| April | 43°F (6°C) | 3.1 in | |
| May | 55°F (13°C) | 3.0 in | |
| June | 64°F (18°C) | 3.1 in | |
| July | 69°F (21°C) | 3.0 in | Warmest |
| August | 68°F (20°C) | 3.2 in | |
| September | 60°F (16°C) | 3.6 in | |
| October | 49°F (9°C) | 4.2 in | Wettest |
| November | 38°F (3°C) | 3.4 in | |
| December | 27°F (-3°C) | 3.1 in |
Three Mile Bay has a seasonal temperature swing of 49°F / from 20°F in January to 69°F in July. Total annual precipitation is 37.1 inches, with October being the wettest month (4.2") and February the driest (2.2").