TODAY MAR01
TEMPERATURE83
HUMIDITY70
PRESSURE30.08
WIND COND.150 14.8
  • 8374Tue
  • 8471Wed20%
  • 7767Thu20%
  • 7768Fri
  • 7765Sat30%30%
daynightWeather update from Marathon, Marathon Airport at

Key findings

  • The highest monthly average temperature in Duck Key for July is 85 degrees
  • The lowest monthly average temperature in Duck Key for February is 70 degrees
  • The most monthly precipitation in Duck Key occurs in August with 10.4 inches
  • The air quality index in Duck Key is 18% better than the national average
  • The pollution index in Duck Key is 754% worse than the national average

Compare Duck Key, FL Weather

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      Duck Key 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
      January65°F77°F71°F2.2"
      February64°F77°F70°F4.1"
      March68°F80°F74°F4.1"
      April70°F82°F76°F5.9"
      May75°F86°F80°F5.5"
      June77°F89°F82°F10.3"
      July80°F91°F85°F7.7"
      August79°F91°F85°F10.4"
      September78°F90°F84°F9.6"
      October78°F87°F82°F5.1"
      November71°F82°F76°F0.7"
      December68°F80°F73°F2.0"

      Duck Key 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.
      IndexDuck KeyFloridaNational
      Air quality index413550
      Pollution index43,296,20015,391,3445,066,862

      Duck Key air quality information

      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

      Duck Key air quality information

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

      Average monthly Duck Key temperature with heat index

      Duck Key monthly precipitation with daily maximum

      Duck Key monthly snow depth with daily maximum

      Duck Key monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Layton, FL1114118%
      Marathon, FL8,7014118%
      Key Colony Beach, FL6964118%
      Duck Key, FL7164118%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Graettinger, IA7161570%
      Gosport, IN7164216%
      Rushville, NY7163726%
      Welcome, MN7161570%
      Gray Court, SC716468%
      Duck Key, FL7164118%
      Source: The Duck Key, 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.