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Henniker, NH
Full City Profile · New Hampshire · Merrimack County County
3.3
/5.0
B
Good
2,880
Population
2,028/sq mi density
$73,339
Median Income
$31,396 per capita
$267,500
Home Value
$479,826 Zillow
$1,084
Median Rent
44.4% income on rent
46°F
Avg Temperature
246 sunny days/yr
240
Violent Crime/100K
898 property/100K
B
Overall
3.3 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.5 / 5.0
$73,339 median income, 1.8% unemployment
A+
Affordability
4.6 / 5.0
$267,500 home value, $1,084/mo rent
F
Safety
1.0 / 5.0
240 violent crimes/100K
C+
Education
3.0 / 5.0
24.5% bachelor's degree or higher
Henniker experiences four distinct seasons with an average annual temperature of 46°F (8°C). Winters average 22°F in January while summers reach 70°F in July. The area gets 246 sunny days per year. Annual precipitation totals 48.0 inches. Air quality is rated Good with a median AQI of 37.
Temperature
22°F Jan (-5°C)
70°F Jul (21°C)
| Annual Average | 46.3°F |
| 14% below US avg | |
| January Average | 22°F (-5°C) |
| July Average | 70°F (21°C) |
| Sunny Days | 246 days/yr |
Geography
| Elevation | 435 ft (133 m) |
| Area | 1.4 sq mi (3.7 km²) |
| Population Density | 2,028/sq mi |
| Coordinates | 43.1815°N, 71.8188°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 |
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 | 22°F (-5°C) | 3.0 in | Coldest |
| February | 23°F (-5°C) | 2.9 in | Driest |
| March | 32°F (0°C) | 3.2 in | |
| April | 43°F (6°C) | 3.4 in | |
| May | 55°F (13°C) | 3.7 in | |
| June | 64°F (18°C) | 3.4 in | |
| July | 70°F (21°C) | 3.5 in | Warmest |
| August | 67°F (20°C) | 3.6 in | |
| September | 59°F (15°C) | 3.2 in | |
| October | 48°F (9°C) | 3.6 in | |
| November | 38°F (3°C) | 4.1 in | Wettest |
| December | 26°F (-3°C) | 3.6 in |
Henniker has a seasonal temperature swing of 48°F / from 22°F in January to 70°F in July. Total annual precipitation is 41.1 inches, with November being the wettest month (4.1") and February the driest (2.9").