TODAY NOV21
TEMPERATURE79
HUMIDITY53
PRESSURE101050
WIND COND.340 20.5
  • 7556Fri
  • 7359Sat
  • 7668Sun
  • 8070Mon
  • 8069Tue
daynightWeather update from Homestead Air Reserve Base at
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Weather Quick Facts

  • The highest monthly average temperature in North Key Largo for August is 82.8 degrees
  • The lowest monthly average temperature in North Key Largo for January is 67.2 degrees
  • The most monthly precipitation in North Key Largo occurs in May with 12.7 inches
  • The air quality index in North Key Largo is 3% better than the national average
  • The pollution index in North Key Largo is 1488% worse than the national average

Compare North Key Largo, FL Weather

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      North Key Largo 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
      January59°F76°F67°F4.2"
      February60°F78°F68°F6.2"
      March63°F80°F71°F6.1"
      April68°F83°F75°F9.3"
      May71°F86°F78°F12.7"
      June75°F89°F81°F11.0"
      July76°F89°F82°F10.6"
      August77°F90°F83°F10.5"
      September76°F89°F81°F10.0"
      October72°F85°F78°F9.1"
      November66°F81°F73°F5.2"
      December64°F79°F71°F7.1"

      North Key Largo 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.
      IndexNorth Key LargoFloridaNational
      Air quality index413542
      Pollution index43,296,2007,570,7852,726,193

      North Key Largo air quality

      MeasurementTotal
      Days measured363
      Days with good air quality284
      Days with moderate air quality77
      Days w/ poor A.Q. for sensitive groups2
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.060%
      Benzene0.510%
      Carbon Tetrachloride0.150%
      Lead0.330%
      Mercury0.090%

      Average monthly North Key Largo temperature with heat index

      North Key Largo monthly precipitation with daily maximum

      North Key Largo monthly snow depth with daily maximum

      North Key Largo monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Florida City, FL11,8554118.0%
      Homestead, FL68,9374118.0%
      Key Largo, FL9,6704118.0%
      North Key Largo, FL8844118.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Darlington, IN8844216.0%
      Bogue, NC8843726.0%
      Abbottstown, PA8844216.0%
      Kendall, WA8843432.0%
      Stanbridge East, QC884n/a 
      North Key Largo, FL8844118.0%
      Source: The North Key Largo, FL 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.