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Marlborough, NH
Full City Profile · New Hampshire · Cheshire County County
3.5
/5.0
B+
Good
925
Population
547/sq mi density
$65,800
Median Income
$37,534 per capita
$241,800
Home Value
$358,265 Zillow
$1,004
Median Rent
28.4% income on rent
45°F
Avg Temperature
246 sunny days/yr
48
Violent Crime/100K
338 property/100K
B+
Overall
3.5 / 5.0
Good overall score based on economy, affordability, safety and education
A
Economy
4.3 / 5.0
$65,800 median income, 0.4% unemployment
A+
Affordability
4.6 / 5.0
$241,800 home value, $1,004/mo rent
F
Safety
1.0 / 5.0
48 violent crimes/100K
B+
Education
3.9 / 5.0
36.6% bachelor's degree or higher
Marlborough 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. The area gets 246 sunny days per year. Annual precipitation totals 46.1 inches. The area receives 59.8 inches of snow annually. Air quality is rated Good with a median AQI of 37.
Temperature
20°F Jan (-6°C)
69°F Jul (21°C)
| Annual Average | 45.4°F |
| 16% below US avg | |
| January Average | 20°F (-6°C) |
| July Average | 69°F (21°C) |
| Sunny Days | 246 days/yr |
Geography
| Elevation | 713 ft (217 m) |
| Area | 1.7 sq mi (4.4 km²) |
| Population Density | 547/sq mi |
| Coordinates | 42.9050°N, 72.2117°W |
| Timezone | America/New_York |
| County | Cheshire County County |
| Nearest Airport | Manchester Boston Regional (MHT) 39 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 37.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0394 ppm |
| PM2.5 (Fine Particles) | 7.4 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 60.5 / 100 |
| Social Vulnerability | 14.1 / 100 |
| Community Resilience | 65.5 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Relatively Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| Hail | Very Low |
| Strong Wind | Relatively Low |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively Moderate |
| Drought | No Rating |
| Cold Wave | Relatively Low |
| 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 (-6°C) | 3.3 in | Coldest |
| February | 22°F (-6°C) | 3.0 in | Driest |
| March | 31°F (-0°C) | 3.5 in | |
| April | 42°F (6°C) | 3.6 in | |
| May | 54°F (12°C) | 4.0 in | Wettest |
| June | 63°F (17°C) | 3.7 in | |
| July | 69°F (21°C) | 3.8 in | Warmest |
| August | 67°F (20°C) | 4.0 in | |
| September | 59°F (15°C) | 3.4 in | |
| October | 48°F (9°C) | 3.6 in | |
| November | 38°F (3°C) | 4.0 in | |
| December | 26°F (-3°C) | 3.7 in |
Marlborough has a seasonal temperature swing of 49°F / from 20°F in January to 69°F in July. Total annual precipitation is 43.5 inches, with May being the wettest month (4.0") and February the driest (3.0").