All Countries
East Merrimack, NH
Full City Profile · New Hampshire · Hillsborough County County
3.6
/5.0
B+
Good
4,872
Population
1,441/sq mi density
$82,829
Median Income
$49,313 per capita
$267,900
Home Value
$523,207 Zillow
$1,780
Median Rent
28.3% income on rent
50°F
Avg Temperature
246 sunny days/yr
130
Violent Crime/100K
1,742 property/100K
B+
Overall
3.6 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.5 / 5.0
$82,829 median income, 0.3% unemployment
A+
Affordability
4.9 / 5.0
$267,900 home value, $1,780/mo rent
F
Safety
1.0 / 5.0
130 violent crimes/100K
A
Education
4.1 / 5.0
38.2% bachelor's degree or higher
East Merrimack experiences four distinct seasons with an average annual temperature of 50°F (10°C). Winters average 26°F in January while summers reach 74°F in July. The area gets 246 sunny days per year. Annual precipitation totals 40.4 inches. Air quality is rated Good with a median AQI of 37.
Temperature
26°F Jan (-4°C)
74°F Jul (23°C)
| Annual Average | 50.1°F |
| 7% below US avg | |
| January Average | 26°F (-4°C) |
| July Average | 74°F (23°C) |
| Sunny Days | 246 days/yr |
Geography
| Elevation | 117 ft (36 m) |
| Area | 3.3 sq mi (8.6 km²) |
| Population Density | 1,441/sq mi |
| Coordinates | 42.8720°N, 71.4811°W |
| Timezone | America/New_York |
| County | Hillsborough County County |
| Nearest Airport | Manchester Boston Regional (MHT) 5 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 | 26°F (-4°C) | 3.2 in | |
| February | 25°F (-4°C) | 3.0 in | Coldest, Driest |
| March | 34°F (1°C) | 3.2 in | |
| April | 45°F (7°C) | 3.5 in | |
| May | 56°F (13°C) | 3.6 in | |
| June | 65°F (18°C) | 3.4 in | |
| July | 74°F (23°C) | 3.5 in | Warmest |
| August | 69°F (21°C) | 3.5 in | |
| September | 61°F (16°C) | 3.3 in | |
| October | 50°F (10°C) | 3.6 in | |
| November | 40°F (4°C) | 4.4 in | Wettest |
| December | 28°F (-2°C) | 3.6 in |
East Merrimack has a seasonal temperature swing of 49°F / from 25°F in February to 74°F in July. Total annual precipitation is 41.7 inches, with November being the wettest month (4.4") and February the driest (3.0").