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  3. New Hampshire
  4. Merrimack County
  5. Henniker

Henniker

Merrimack County

2026-02-16 21:00
AQI (US)
Good
Pollutants
O3
μg/m³
95.5
PM2.5
μg/m³
3.6
PM10
μg/m³
6.2
CO
μg/m³
128.9
SO2
μg/m³
1.5
NO2
μg/m³
1.4
Weather
  • ℃
  • ℉
1℃
66%
4 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • O3
  • PM2.5
  • PM10
  • CO
  • SO2
  • NO2
Places included
Henniker
AQI 42

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