Calcium, NY
Full City Profile · New York · St. Lawrence County County
3.6
/5.0
B+
Good
3,245
Population
578/sq mi density
$64,613
Median Income
$34,360 per capita
$216,900
Home Value
$225,455 Zillow
$1,353
Median Rent
24.5% income on rent
45°F
Avg Temperature
B+
Overall
3.6 / 5.0
Good overall score based on economy, affordability, safety and education
B
Economy
3.1 / 5.0
$64,613 median income, 9.5% unemployment
A+
Affordability
4.8 / 5.0
$216,900 home value, $1,353/mo rent
C+
Education
3.0 / 5.0
24.6% bachelor's degree or higher
Calcium 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 45.1 inches. The area receives 116.4 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 | 518 ft (158 m) |
| Area | 5.6 sq mi (14.5 km²) |
| Population Density | 578/sq mi |
| Coordinates | 44.0409°N, 75.8494°W |
| Timezone | America/New_York |
| County | St. Lawrence County County |
| Nearest Airport | Watertown International (ART) 9 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) | 3.7 in | Coldest |
| February | 21°F (-6°C) | 2.8 in | Driest |
| March | 30°F (-1°C) | 2.9 in | |
| April | 43°F (6°C) | 3.7 in | |
| May | 55°F (13°C) | 3.8 in | |
| June | 64°F (18°C) | 3.8 in | |
| July | 69°F (21°C) | 3.4 in | Warmest |
| August | 68°F (20°C) | 3.8 in | |
| September | 60°F (16°C) | 3.9 in | |
| October | 49°F (9°C) | 5.1 in | Wettest |
| November | 38°F (3°C) | 4.1 in | |
| December | 27°F (-3°C) | 4.1 in |
Calcium has a seasonal temperature swing of 49°F / from 20°F in January to 69°F in July. Total annual precipitation is 45.1 inches, with October being the wettest month (5.1") and February the driest (2.8").