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  3. New Hampshire
  4. Merrimack County
  5. Allenstown

Allenstown

Merrimack County, New Hampshire

2026-08-09 12:00
CAQI (Europe)
Very Low
Pollutants|Pollens
PM10
μg/m³
11.1
O3
μg/m³
25
PM2.5
μg/m³
6
NO2
μg/m³
2.7
SO2
μg/m³
2.1
CO
μg/m³
205.2
Weather
  • ℃
  • ℉
21℃
95%
5 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • CAQI (Europe)
  • Pollen
  • PM10
  • O3
  • PM2.5
  • NO2
  • SO2
  • CO

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