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Hillsborough, NH
Full City Profile · New Hampshire · Merrimack County County
3.0
/5.0
B
Good
1,582
Population
811/sq mi density
$64,417
Median Income
$33,967 per capita
$197,500
Home Value
$365,210 Zillow
$963
Median Rent
30.9% income on rent
47°F
Avg Temperature
246 sunny days/yr
200
Violent Crime/100K
935 property/100K
B
Overall
3.0 / 5.0
Good overall score based on economy, affordability, safety and education
A
Economy
4.3 / 5.0
$64,417 median income, 0.0% unemployment
A+
Affordability
5.0 / 5.0
$197,500 home value, $963/mo rent
F
Safety
1.0 / 5.0
200 violent crimes/100K
D
Education
1.9 / 5.0
10.7% bachelor's degree or higher
Hillsborough experiences four distinct seasons with an average annual temperature of 47°F (8°C). Winters average 21°F in January while summers reach 71°F in July. The area gets 246 sunny days per year. Annual precipitation totals 47.4 inches. Air quality is rated Good with a median AQI of 37.
Temperature
21°F Jan (-6°C)
71°F Jul (22°C)
| Annual Average | 46.8°F |
| 13% below US avg | |
| January Average | 21°F (-6°C) |
| July Average | 71°F (22°C) |
| Sunny Days | 246 days/yr |
Geography
| Elevation | 640 ft (195 m) |
| Area | 1.6 sq mi (4.2 km²) |
| Population Density | 811/sq mi |
| Coordinates | 43.1156°N, 71.8968°W |
| Timezone | America/New_York |
| County | Merrimack County County |
| Nearest Airport | Manchester Boston Regional (MHT) 26 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 37.0 |
| Rating | Good |
| Good Days % | 89.6% |
| Unhealthy Days | 0 |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0420 ppm |
| SO₂ (Sulfur Dioxide) | 0.53 ppb |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 78.2 / 100 |
| Social Vulnerability | 15.0 / 100 |
| Community Resilience | 80.8 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Relatively Moderate |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| Hail | Relatively Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively High |
| Ice Storm | Relatively High |
| Drought | Relatively Low |
| 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 | 21°F (-6°C) | 3.3 in | Coldest, Driest |
| February | 22°F (-6°C) | 3.3 in | |
| March | 32°F (-0°C) | 3.6 in | |
| April | 43°F (6°C) | 3.7 in | |
| May | 55°F (13°C) | 3.9 in | |
| June | 63°F (17°C) | 3.7 in | |
| July | 71°F (22°C) | 3.5 in | Warmest |
| August | 67°F (19°C) | 3.8 in | |
| September | 59°F (15°C) | 3.3 in | |
| October | 48°F (9°C) | 3.7 in | |
| November | 38°F (3°C) | 4.4 in | Wettest |
| December | 26°F (-3°C) | 4.0 in |
Hillsborough has a seasonal temperature swing of 50°F / from 21°F in January to 71°F in July. Total annual precipitation is 44.3 inches, with November being the wettest month (4.4") and January the driest (3.3").