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New Boston, NH
Full City Profile · New Hampshire · Hillsborough County County
3.0
/5.0
B
Good
197
Population
379/sq mi density
48°F
Avg Temperature
246 sunny days/yr
34
Violent Crime/100K
256 property/100K
B
Overall
3.0 / 5.0
Good overall score based on economy, affordability, safety and education
F
Safety
1.0 / 5.0
34 violent crimes/100K
A+
Education
5.0 / 5.0
82.0% bachelor's degree or higher
New Boston experiences four distinct seasons with an average annual temperature of 48°F (9°C). Winters average 24°F in January while summers reach 72°F in July. The area gets 246 sunny days per year. Annual precipitation totals 46.0 inches. The area receives 57.4 inches of snow annually. Air quality is rated Good with a median AQI of 37.
Temperature
24°F Jan (-5°C)
72°F Jul (22°C)
| Annual Average | 47.7°F |
| 12% below US avg | |
| January Average | 24°F (-5°C) |
| July Average | 72°F (22°C) |
| Sunny Days | 246 days/yr |
Geography
| Elevation | 484 ft (148 m) |
| Area | 0.5 sq mi (1.4 km²) |
| Population Density | 379/sq mi |
| Coordinates | 42.9778°N, 71.6939°W |
| Timezone | America/New_York |
| County | Hillsborough County County |
| Nearest Airport | Manchester Boston Regional (MHT) 13 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 37.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0421 ppm |
| SO₂ (Sulfur Dioxide) | 0.25 ppb |
| CO (Carbon Monoxide) | 0.14 ppm |
| PM2.5 (Fine Particles) | 4.6 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 89.8 / 100 |
| Social Vulnerability | 10.6 / 100 |
| Community Resilience | 64.3 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Relatively Moderate |
| Earthquake | Relatively Low |
| Wildfire | Relatively Low |
| Flood | Relatively Moderate |
| Hail | Relatively Low |
| Strong Wind | Relatively High |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively High |
| Lightning | Relatively High |
| Ice Storm | Very High |
| Drought | Relatively Low |
| 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 | 24°F (-5°C) | 3.4 in | |
| February | 23°F (-5°C) | 3.4 in | Coldest |
| March | 32°F (-0°C) | 3.6 in | |
| April | 43°F (6°C) | 3.8 in | |
| May | 54°F (12°C) | 3.8 in | |
| June | 63°F (17°C) | 3.6 in | |
| July | 72°F (22°C) | 3.6 in | Warmest |
| August | 68°F (20°C) | 3.7 in | |
| September | 59°F (15°C) | 3.3 in | Driest |
| October | 48°F (9°C) | 3.9 in | |
| November | 39°F (4°C) | 4.5 in | Wettest |
| December | 27°F (-3°C) | 4.0 in |
New Boston has a seasonal temperature swing of 49°F / from 23°F in February to 72°F in July. Total annual precipitation is 44.5 inches, with November being the wettest month (4.5") and September the driest (3.3").