TODAY MAR28
TEMPERATURE46
HUMIDITY96
PRESSURE101460
WIND COND.350 5.4
  • 5133Fri
  • 5439Sat30%
  • 5838Sun
  • 5240Mon40%50%
  • 5139Tue80%70%
daynightWeather update from Somerville, Somerset Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Chester for July is 75 degrees
  • The lowest monthly average temperature in Chester for January is 30.6 degrees
  • The most monthly precipitation in Chester occurs in August with 5.5 inches
  • The air quality index in Chester is 19% better than the national average
  • The pollution index in Chester is 200% worse than the national average

Compare Chester, NJ Weather

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      Chester 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"

      Chester 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.
      IndexChesterNew JerseyNational
      Air quality index344542
      Pollution index8,169,9307,246,8912,726,193

      Chester air quality information

      MeasurementTotal
      Days measured349
      Days with good air quality340
      Days with moderate air quality9
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Chester air quality information

      PollutantTotal
      Arsenic0.010%
      Benzene0.070%
      Carbon Tetrachloride0.030%
      Lead0.020%
      Mercury0.010%

      Average monthly Chester temperature with heat index

      Chester monthly precipitation with daily maximum

      Chester monthly snow depth with daily maximum

      Chester monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Upper Pohatcong, NJ1,7743432.0%
      Lake Telemark, NJ1,1333432.0%
      Hope, NJ1533432.0%
      Glen Gardner, NJ1,5543432.0%
      Port Colden, NJ823432.0%
      Chester, NJ1,5143432.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Monette, AR1,5142648.0%
      Oakwood, IL1,5144216.0%
      Sedgwick, KS1,5144020.0%
      Bell Acres, PA1,5145612.0%
      Wilton, ME1,5132844.0%
      Chester, NJ1,5143432.0%
      Source: The Chester, 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.