Manchester, NH home environmental profile

What federal public datasets currently say about outdoor air, drinking-water systems, climate moisture and housing age around Manchester.

Experimental index62.2 / 100

National position#29 of 70

Release statusValidated

Answer summary

As of 2026-10-15, HomeNHealthy reports the following for Manchester: The current AirNow AQI for the Interior Rockingham County reporting area is 27 (Good), observed 10/15/26 11:00 EDT. The selected NOAA normals station has a HomeNHealthy warm-season moisture-pressure value of 49.6 out of 100, based on a May–September mean of 65.0°F and 18.8 inches of precipitation. These are geographic indicators, not measurements inside a specific home.

Current outdoor airAvailable27Good

Water contextAvailable99.2%systems without current health-based violation

Moisture pressureAvailable49.6HomeNHealthy proxy, not mold risk

Housing built pre-1980Available64.8%Census place estimate

Questions this profile can answer

What is the current outdoor air quality near Manchester?

The current AirNow AQI for the Interior Rockingham County reporting area is 27 (Good), observed 10/15/26 11:00 EDT.

AirNow data are preliminary outdoor observations and can change quickly. They are not a measurement of indoor air and are not used in the long-term index.

What do EPA records say about drinking-water systems?

Across active community water systems in New Hampshire, 99.2% had no current health-based violation in the ECHO query: 6 of 706 systems were returned with one.

This is state-level regulatory context. It does not establish which utility serves an address, whether a violation affected a specific tap, or whether water is unsafe today.

How strong is warm-season moisture pressure?

The selected NOAA normals station has a HomeNHealthy warm-season moisture-pressure value of 49.6 out of 100, based on a May–September mean of 65.0°F and 18.8 inches of precipitation.

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Monthly precipitation normals, January through December. Station: USC00275211 — MASSABESIC LAKE (3.4 mi).

How old is the housing stock?

The ACS median year built is 1966. An estimated 64.8% of units in the Census age table were built before 1980, and 28.1% before 1940.

The Census groups 1970–1979 together. HomeNHealthy therefore reports the observable pre-1980 share rather than estimating an exact pre-1978 lead-paint-era percentage.

What should a homeowner verify at the property?

Geographic data cannot determine conditions inside a building. Depending on the property, direct checks may include radon testing, carbon-monoxide alarms, indoor humidity, visible moisture, lead evaluation for older materials, and the serving water utility’s current Consumer Confidence Report.

Field-level provenance