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Londonderry (New Hampshire) (US)

Air Quality Trend (last 7 days)

Good (0-50)
Moderate (51-100)
Unhealthy for Sensitive Groups (101-150)
Unhealthy (151-200)
Very Unhealthy (201-300)
Hazardous (300+)

Weather - 48h MET Norway

Pochmurno
3°C
Pochmurno
Humidity
44.8%
Wind
3 m/s
Pressure
1032.9 hPa
Direction
137°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
-0° / 11°
Precip.
10.8mm
Max wind
5.9 m/s

Hourly Forecast

15.03
Now
Weather
15.03
18:00
Weather
15.03
19:00
Weather
15.03
20:00
Weather
15.03
21:00
Weather
15.03
22:00
Weather
15.03
23:00
Weather
16.03
00:00
Weather
16.03
01:00
Weather
-0°
16.03
02:00
Weather
-0°
16.03
03:00
Weather
-0°
16.03
04:00
Weather
-0°
16.03
05:00
Weather
-0°
0.3
16.03
06:00
Weather
16.03
07:00
Weather
16.03
08:00
Weather
16.03
09:00
Weather
16.03
10:00
Weather
0.8
16.03
11:00
Weather
4.1
5
16.03
12:00
Weather
2.9
6
16.03
13:00
Weather
1.3
6
16.03
14:00
Weather
0.7
16.03
15:00
Weather
0.3
5
16.03
16:00
Weather
11°
0.4
6

Temperature

11°C
-0°C
17:00
3°C
18:00
3°C
19:00
4°C
20:00
5°C
21:00
4°C
22:00
2°C
23:00
1°C
00:00
0°C
01:00
-0°C
02:00
-0°C
03:00
-0°C
04:00
-0°C
05:00
-0°C
06:00
1°C
07:00
2°C
08:00
3°C
09:00
3°C
10:00
4°C
11:00
4°C
12:00
5°C
13:00
6°C
14:00
7°C
15:00
9°C
16:00
11°C
17:00 04:00 16:00

Precipitation

4.1mm
0mm
05:00
0.3mm
10:00
0.8mm
11:00
4.1mm
12:00
2.9mm
13:00
1.3mm
14:00
0.7mm
15:00
0.3mm
16:00
0.4mm
17:00 04:00 16:00

Wind

5.9m/s
0m/s
17:00
2.6 m/s
18:00
3 m/s
19:00
3.6 m/s
20:00
4.3 m/s
21:00
4.7 m/s
22:00
4.1 m/s
23:00
3.9 m/s
00:00
3.7 m/s
01:00
3.7 m/s
02:00
3.7 m/s
03:00
3.6 m/s
04:00
3.6 m/s
05:00
3.9 m/s
06:00
4.2 m/s
07:00
4 m/s
08:00
4.2 m/s
09:00
4.4 m/s
10:00
5 m/s
11:00
5.2 m/s
12:00
5.5 m/s
13:00
5.9 m/s
14:00
5 m/s
15:00
5.4 m/s
16:00
5.9 m/s
17:00 04:00 16:00

Radiation

No sensor within 100 km.

We display the worst measurements from all stations in the area. This approach provides a more cautious assessment of air quality, accounting for local pollution sources.

AQI
75.7 km
54
18%

Measurement time: 2026-03-15 16:00

Calculated from PM2.5/PM10

O3
74 km
97.01 µg/m3
60.6%

Measurement time: 2026-03-15 17:50

source: OpenWeatherMap

PM2.5
75.7 km
14 µg/m3
16.7%

Measurement time: 2026-03-15 16:00

source: Aqicn

PM10
75.7 km
6 µg/m3
4.3%

Measurement time: 2026-03-15 16:00

source: Aqicn

NO2
61.8 km
6.16 µg/m3
3.1%

Measurement time: 2026-03-15 17:00

source: OpenWeatherMap

CO
61.8 km
0.16963 mg/m3
1.2%

Measurement time: 2026-03-15 17:00

source: OpenWeatherMap

SO2
56 km
1.2 µg/m3
0.3%

Measurement time: 2026-03-15 16:00

source: Aqicn

Info


Latitude: 42.86509
Longitude: -71.37395


Solar Energy

Moderate
322 W/m²
Solar Radiation
Solar Calculator
Calculate energy production for Londonderry

About Air Quality in Londonderry

Air quality in Londonderry is monitored in real-time by sensors and measurement stations. On this page you'll find current data on major air pollutants including particulate matter PM2.5 and PM10, nitrogen dioxide (NO2), ozone (O3), and radiation levels.

Common Pollutants in Londonderry

  • PM2.5 - fine particulate matter up to 2.5 micrometers, particularly harmful to health
  • PM10 - particulate matter up to 10 micrometers from traffic and industry
  • NO2 - nitrogen dioxide mainly emitted by vehicles
  • O3 - tropospheric ozone formed in photochemical reactions

When is Air Quality Best in Londonderry?

Generally, the best air quality occurs:

  • Early morning (5:00-7:00 AM) before rush hour traffic
  • After rainfall which cleanses the atmosphere
  • During strong winds that disperse pollutants
  • In summer months when heating systems are less used

Tips for Runners in Londonderry

If you're planning outdoor activities in Londonderry, always check the current AQI value. When AQI exceeds 100, consider moving your workout indoors or shortening the distance. People with respiratory issues, children, and seniors should be especially cautious during elevated pollution levels. Choose routes away from busy streets and industrial areas.