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Three Mile Bay, NY
Full City Profile · New York · Jefferson County County
3.3
/5.0
B
Good
40
Population
143/sq mi density
$34,875
Median Income
$18,675 per capita
$202,500
Home Value
$235,788 Zillow
45°F
Avg Temperature
270 sunny days/yr
546
Violent Crime/100K
4,627 property/100K
B
Overall
3.3 / 5.0
Good overall score based on economy, affordability, safety and education
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
F
Safety
1.0 / 5.0
546 violent crimes/100K (44% above avg)
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. The area gets 270 sunny days per year. Annual precipitation totals 37.1 inches. Air quality is rated Good with a median AQI of 36.
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) |
| Sunny Days | 270 days/yr |
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 | 36.0 |
| Rating | Good |
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) | 3.3 in | Coldest |
| February | 20°F (-7°C) | 2.7 in | |
| March | 30°F (-1°C) | 2.6 in | Driest |
| April | 42°F (6°C) | 3.1 in | |
| May | 54°F (12°C) | 3.1 in | |
| June | 63°F (17°C) | 3.1 in | |
| July | 69°F (21°C) | 2.8 in | Warmest |
| August | 68°F (20°C) | 3.5 in | |
| September | 60°F (16°C) | 4.0 in | |
| October | 49°F (9°C) | 3.5 in | |
| November | 38°F (4°C) | 4.2 in | Wettest |
| December | 26°F (-3°C) | 3.6 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 39.5 inches, with November being the wettest month (4.2") and March the driest (2.6").