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Knollcrest, CT
Full City Profile · Connecticut · Putnam County County
3.0
/5.0
B
Good
277
Population
1,629/sq mi density
$475,000
Home Value
$677,045 Zillow
$3,083
Median Rent
23.4% income on rent
48°F
Avg Temperature
275 sunny days/yr
61
Violent Crime/100K
1,178 property/100K
B
Overall
3.0 / 5.0
Good overall score based on economy, affordability, safety and education
F
Safety
1.0 / 5.0
61 violent crimes/100K
A+
Education
5.0 / 5.0
67.5% bachelor's degree or higher
Knollcrest experiences four distinct seasons with an average annual temperature of 48°F (9°C). Winters average 25°F in January while summers reach 71°F in July. The area gets 275 sunny days per year. Annual precipitation totals 46.9 inches. Air quality is rated Good with a median AQI of 39.
Temperature
25°F Jan (-4°C)
71°F Jul (22°C)
| Annual Average | 48.4°F |
| 10% below US avg | |
| January Average | 25°F (-4°C) |
| July Average | 71°F (22°C) |
| Sunny Days | 275 days/yr |
Geography
| Elevation | 503 ft (153 m) |
| Area | 0.2 sq mi (0.4 km²) |
| Population Density | 1,629/sq mi |
| Coordinates | 41.5012°N, 73.4669°W |
| Timezone | America/New_York |
| County | Putnam County County |
| Nearest Airport | Hudson Valley Regional (POU) 23 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 39.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0402 ppm |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 39.8 / 100 |
| Social Vulnerability | 10.6 / 100 |
| Community Resilience | 90.6 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Relatively Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Very Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively Low |
| Ice Storm | Relatively Moderate |
| Drought | Very Low |
| Cold Wave | Relatively Low |
| Landslide | Relatively Low |
| Coastal Flood | Very Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Tsunami History
1 tsunami recorded within 500 km. Highest wave on record: 0.3 m (1 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1964 | LONG ISLAND, NY | Meteorological | 0.3 m | — | 84 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 25°F (-4°C) | 3.4 in | Coldest |
| February | 27°F (-3°C) | 3.2 in | Driest |
| March | 36°F (2°C) | 3.9 in | |
| April | 47°F (8°C) | 4.2 in | |
| May | 58°F (14°C) | 4.5 in | Wettest |
| June | 66°F (19°C) | 4.0 in | |
| July | 71°F (22°C) | 4.2 in | Warmest |
| August | 70°F (21°C) | 4.1 in | |
| September | 62°F (17°C) | 4.0 in | |
| October | 51°F (11°C) | 3.9 in | |
| November | 41°F (5°C) | 4.2 in | |
| December | 31°F (-1°C) | 3.9 in |
Knollcrest has a seasonal temperature swing of 47°F / from 25°F in January to 71°F in July. Total annual precipitation is 47.4 inches, with May being the wettest month (4.5") and February the driest (3.2").