TODAY NOV22
TEMPERATURE37
HUMIDITY89
PRESSURE99490
WIND COND.230 22.3
  • 5140Sat
  • 5432Sun
  • 5842Mon
  • 5933Tue30%
  • 4931Wed
daynightWeather update from Trenton, Mercer County Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Downtown for July is 77 degrees
  • The lowest monthly average temperature in Downtown for January is 32.7 degrees
  • The most monthly precipitation in Downtown occurs in June with 5.3 inches
  • The air quality index in Downtown is 3% better than the national average
  • The pollution index in Downtown is 22% worse than the national average

Compare Trenton, NJ Weather

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      Downtown 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
      January25°F42°F33°F3.3"
      February25°F43°F34°F2.4"
      March33°F53°F42°F3.4"
      April43°F66°F54°F3.8"
      May52°F75°F63°F3.9"
      June62°F83°F72°F5.3"
      July67°F88°F77°F5.1"
      August65°F85°F75°F4.7"
      September59°F79°F68°F3.5"
      October48°F68°F57°F4.2"
      November37°F57°F46°F2.9"
      December31°F47°F38°F4.3"

      Downtown 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.
      IndexDowntownTrentonNew Jersey
      Air quality index414145
      Pollution index3,313,9203,313,9207,246,891

      Downtown 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
      Arsenic0.350%
      Benzene0.020%
      Carbon Tetrachloride0.004%
      Lead0.350%
      Mercury0.340%

      Average monthly Downtown temperature with heat index

      Downtown monthly precipitation with daily maximum

      Downtown monthly snow depth with daily maximum

      Downtown monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Dayton, NJ8,1584118.0%
      Kendall Park, NJ9,8524118.0%
      Princeton, NJ31,1614118.0%
      Ten Mile Run, NJ1,8014118.0%
      Burlington, NJ9,8454118.0%
      Trenton, NJ83,3874118.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Fort Myers, FL83,5053628.0%
      Goodyear, AZ83,5197448.0%
      Mission, TX83,7964216.0%
      New Westminster, BC82,940n/a 
      Chino Hills, CA82,8008978.0%
      Trenton, NJ83,3874118.0%
      Source: The Downtown, Trenton, 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.