TODAY NOV22
TEMPERATURE40
HUMIDITY83
PRESSURE99700
WIND COND.260 22.3
  • 4431Fri50%60%
  • 5137Sat
  • 5331Sun
  • 5741Mon
  • 5732Tue30%
daynightWeather update from Trenton, Mercer County Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Hamilton Square for July is 77 degrees
  • The lowest monthly average temperature in Hamilton Square for January is 32.7 degrees
  • The most monthly precipitation in Hamilton Square occurs in June with 5.3 inches
  • The air quality index in Hamilton Square is 3% better than the national average
  • The pollution index in Hamilton Square is 38% worse than the national average

Compare Hamilton Square, NJ Weather

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      Hamilton Square 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"

      Hamilton Square 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.
      IndexHamilton SquareNew JerseyNational
      Air quality index414542
      Pollution index3,756,2707,246,8912,726,193

      Hamilton Square 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
      Arsenic0.020%
      Benzene0.040%
      Carbon Tetrachloride0.010%
      Lead0.100%
      Mercury0.001%

      Average monthly Hamilton Square temperature with heat index

      Hamilton Square monthly precipitation with daily maximum

      Hamilton Square monthly snow depth with daily maximum

      Hamilton Square monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Griggstown, NJ8584118.0%
      Kingston, NJ9634118.0%
      Skillman, NJ4764118.0%
      Burlington, NJ9,8454118.0%
      McGuire AFB, NJ5,0264118.0%
      Hamilton Square, NJ11,5264118.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Branson, MO11,5261864.0%
      Lac Ste. Anne County, AB11,522n/a 
      Los Alamitos, CA11,5217244.0%
      Byram, MS11,5194412.0%
      Mexico, MO11,5353824.0%
      Hamilton Square, NJ11,5264118.0%
      Source: The Hamilton Square, 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.