TODAY NOV21
TEMPERATURE48
HUMIDITY96
PRESSURE99800
WIND COND.340 7.6
  • 4332Fri50%50%
  • 5037Sat
  • 5233Sun
  • 5640Mon
  • 5733Tue
daynightWeather update from Somerville, Somerset Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Green Knoll for July is 75 degrees
  • The lowest monthly average temperature in Green Knoll for January is 30.6 degrees
  • The most monthly precipitation in Green Knoll occurs in August with 5.5 inches
  • The air quality index in Green Knoll is 3% better than the national average
  • The pollution index in Green Knoll is 106% worse than the national average

Compare Green Knoll, NJ Weather

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      Green Knoll 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"

      Green Knoll 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.
      IndexGreen KnollNew JerseyNational
      Air quality index414542
      Pollution index5,618,7107,246,8912,726,193

      Green Knoll air quality

      MeasurementTotal
      Days measured365
      Days with good air quality280
      Days with moderate air quality83
      Days w/ poor A.Q. for sensitive groups2
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.004%
      Benzene0.060%
      Carbon Tetrachloride0.020%
      Lead0.040%
      Mercury0.003%

      Average monthly Green Knoll temperature with heat index

      Green Knoll monthly precipitation with daily maximum

      Green Knoll monthly snow depth with daily maximum

      Green Knoll monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Peapack and Gladstone, NJ2,5823432.0%
      Annandale, NJ1,7943432.0%
      Beattystown, NJ4,5503432.0%
      High Bridge, NJ3,4603432.0%
      Califon, NJ1,1843432.0%
      Green Knoll, NJ6,4424118.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Carthage, TX6,4423824.0%
      Cheverly, MD6,439476.0%
      Rittman, OH6,4394314.0%
      Sealy, TX6,439524.0%
      Eucalyptus Hills, CA6,4486428.0%
      Green Knoll, NJ6,4424118.0%
      Source: The Green Knoll, 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.