Theresa, NY
Full City Profile · New York · St. Lawrence County County
3.3
/5.0
B
Good
1,019
Population
809/sq mi density
$57,738
Median Income
$29,600 per capita
$146,500
Home Value
$216,220 Zillow
$953
Median Rent
23.6% income on rent
45°F
Avg Temperature
B
Overall
3.3 / 5.0
Good overall score based on economy, affordability, safety and education
B
Economy
3.4 / 5.0
$57,738 median income, 3.3% unemployment
A+
Affordability
5.0 / 5.0
$146,500 home value, $953/mo rent
F
Education
1.4 / 5.0
5.1% bachelor's degree or higher
Theresa 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 48.9 inches. The area receives 92.4 inches of snow annually.
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 | 437 ft (133 m) |
| Area | 1.3 sq mi (3.4 km²) |
| Population Density | 809/sq mi |
| Coordinates | 44.2155°N, 75.7959°W |
| Timezone | America/New_York |
| County | St. Lawrence County County |
| Nearest Airport | Watertown International (ART) 19 miles away |
Precipitation & Snow
Air Quality
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 77.9 / 100 |
| Social Vulnerability | 64.7 / 100 |
| Community Resilience | 70.4 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Hurricane | Relatively Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| Hail | Very Low |
| Strong Wind | Relatively Low |
| Heat Wave | Very Low |
| Winter Weather | Relatively High |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively High |
| Drought | No Rating |
| Cold Wave | Relatively Moderate |
| Landslide | Relatively Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 20°F (-7°C) | 4.7 in | Coldest |
| February | 21°F (-6°C) | 2.9 in | Driest |
| March | 30°F (-1°C) | 4.2 in | |
| April | 43°F (6°C) | 3.6 in | |
| May | 55°F (13°C) | 3.5 in | |
| June | 64°F (18°C) | 4.8 in | |
| July | 69°F (21°C) | 3.3 in | Warmest |
| August | 68°F (20°C) | 4.0 in | |
| September | 60°F (16°C) | 4.4 in | |
| October | 49°F (9°C) | 5.3 in | Wettest |
| November | 38°F (3°C) | 3.9 in | |
| December | 27°F (-3°C) | 4.5 in |
Theresa has a seasonal temperature swing of 49°F / from 20°F in January to 69°F in July. Total annual precipitation is 48.9 inches, with October being the wettest month (5.3") and February the driest (2.9").