TODAY DEC26
TEMPERATURE31
HUMIDITY66
PRESSURE103220
WIND COND.320 5.4
  • 3928Fri
  • 4439Sat70%80%
  • 5847Sun70%80%
  • 5735Mon80%30%
  • 5240Tue60%
daynightWeather update from Somerville, Somerset Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Dunellen for July is 75 degrees
  • The lowest monthly average temperature in Dunellen for January is 30.6 degrees
  • The most monthly precipitation in Dunellen occurs in August with 5.5 inches
  • The air quality index in Dunellen is 21% worse than the national average
  • The pollution index in Dunellen is 371% worse than the national average

Compare Dunellen, NJ Weather

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      Dunellen Average Temperature

      In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
      MonthTemp. (min)Temp. (max)Temp. (avg)Precipitation
      January21°F41°F31°F2.8"
      February22°F43°F31°F2.3"
      March30°F53°F41°F3.7"
      April39°F66°F52°F4.0"
      May49°F75°F62°F3.7"
      June58°F83°F70°F5.3"
      July63°F87°F75°F5.3"
      August61°F85°F72°F5.5"
      September55°F79°F66°F3.6"
      October43°F68°F55°F4.5"
      November33°F56°F44°F3.0"
      December27°F46°F36°F4.6"

      Dunellen air quality index & pollution index

      In the event that the air quality/pollution data was unavailable for this city, estimates based upon nearby cities were used.
      IndexDunellenNew JerseyNational
      Air quality index514542
      Pollution index12,837,2007,246,8912,726,193

      Dunellen air quality

      MeasurementTotal
      Days measured365
      Days with good air quality169
      Days with moderate air quality180
      Days w/ poor A.Q. for sensitive groups16
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.010%
      Benzene0.110%
      Carbon Tetrachloride0.050%
      Lead0.020%
      Mercury0.230%

      Average monthly Dunellen temperature with heat index

      Dunellen monthly precipitation with daily maximum

      Dunellen monthly snow depth with daily maximum

      Dunellen monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Chester, NJ1,5143432.0%
      Mendham, NJ4,8803432.0%
      Peapack and Gladstone, NJ2,5823432.0%
      Middlebush, NJ2,7374118.0%
      Far Hills, NJ9154118.0%
      Dunellen, NJ7,215512.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Umatilla, OR7,2153726.0%
      Neptune Beach, FL7,2144314.0%
      Riverdale Park, MD7,216476.0%
      Lago Vista, TX7,2124412.0%
      Seward, NE7,2103138.0%
      Dunellen, NJ7,215512.0%
      Source: The Dunellen, NJ weather data displayed above is derived from the NOAA (National Oceanic and Atmospheric). Air quality and pollution data is derived from the EPA (United States Environmental Protection Agency). Air quality and pollution levels measured in a particular area may not be representative of the entire county.