Newcastle, ME
Full City Profile · Maine · Knox County County
4.0
/5.0
A
Great
621
Population
286/sq mi density
$76,389
Median Income
$42,691 per capita
$417,700
Home Value
$469,257 Zillow
$1,042
Median Rent
24.5% income on rent
47°F
Avg Temperature
A
Overall
4.0 / 5.0
Strong
A+
Economy
4.5 / 5.0
$76,389 median income, 1.2% unemployment
B+
Affordability
3.6 / 5.0
$417,700 home value, $1,042/mo rent
B+
Education
4.0 / 5.0
37.0% bachelor's degree or higher
Newcastle experiences four distinct seasons with an average annual temperature of 47°F (8°C). Winters average 22°F in January while summers reach 69°F in July. Annual precipitation totals 49.2 inches. The area receives 78.7 inches of snow annually. Air quality is rated Good with a median AQI of 33.
Temperature
22°F Jan (-5°C)
69°F Jul (21°C)
| Annual Average | 46.5°F |
| 14% below US avg | |
| January Average | 22°F (-5°C) |
| July Average | 69°F (21°C) |
Geography
| Elevation | 160 ft (49 m) |
| Area | 2.2 sq mi (5.6 km²) |
| Population Density | 286/sq mi |
| Coordinates | 44.0486°N, 69.5333°W |
| Timezone | America/New_York |
| County | Knox County County |
| Nearest Airport | Knox County Regional (RKD) 22 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 33.0 |
| Rating | Good |
| Good Days % | 96.6% |
| Unhealthy Days | 0 |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0370 ppm |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 28.6 / 100 |
| Social Vulnerability | 16.3 / 100 |
| Community Resilience | 99.0 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Hurricane | Relatively Moderate |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Very Low |
| Hail | Very Low |
| Strong Wind | Relatively Low |
| Heat Wave | Very Low |
| Winter Weather | Relatively High |
| Lightning | Relatively Low |
| Ice Storm | Relatively High |
| Drought | Relatively Low |
| Cold Wave | Relatively Low |
| Landslide | Relatively Low |
| Coastal Flood | Relatively Moderate |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Tsunami History
1 tsunami recorded within 500 km. Highest wave on record: 3.6 m (12 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 2008 | MAINE | Avalanche | 3.6 m | - | 31 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 22°F (-5°C) | 3.8 in | Coldest |
| February | 25°F (-4°C) | 3.6 in | |
| March | 33°F (0°C) | 4.3 in | |
| April | 44°F (7°C) | 4.2 in | |
| May | 55°F (13°C) | 3.8 in | |
| June | 63°F (17°C) | 4.3 in | |
| July | 69°F (21°C) | 3.4 in | Warmest |
| August | 68°F (20°C) | 3.4 in | Driest |
| September | 61°F (16°C) | 4.2 in | |
| October | 49°F (10°C) | 5.0 in | Wettest |
| November | 39°F (4°C) | 4.6 in | |
| December | 29°F (-2°C) | 4.7 in |
Newcastle has a seasonal temperature swing of 47°F / from 22°F in January to 69°F in July. Total annual precipitation is 49.3 inches, with October being the wettest month (5.0") and August the driest (3.4").