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Key findings

  • The highest monthly average temperature in St. Marks for August is 81.7 degrees
  • The lowest monthly average temperature in St. Marks for January is 52.5 degrees
  • The most monthly precipitation in St. Marks occurs in August with 8.3 inches
  • The air quality index in St. Marks is 20% better than the national average
  • The pollution index in St. Marks is 75% better than the national average

Compare St. Marks, FL Weather

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      St. Marks 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
      January39°F67°F53°F4.1"
      February40°F70°F54°F5.0"
      March46°F77°F61°F4.3"
      April53°F83°F68°F4.9"
      May61°F89°F75°F2.9"
      June70°F94°F80°F7.6"
      July72°F94°F81°F6.5"
      August73°F94°F82°F8.3"
      September69°F91°F79°F3.9"
      October57°F84°F70°F2.7"
      November46°F76°F60°F3.5"
      December43°F70°F56°F5.7"

      St. Marks 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.
      IndexSt. MarksFloridaNational
      Air quality index403550
      Pollution index1,265,59015,391,3445,066,862

      St. Marks air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality272
      Days with moderate air quality92
      Days w/ poor A.Q. for sensitive groups1
      Days with unhealthy air quality0

      St. Marks air quality information

      PollutantTotal
      Arsenic0.001%
      Benzene0.030%
      Carbon Tetrachloride0.000%
      Lead0.002%
      Mercury0.000%

      Average monthly St. Marks temperature with heat index

      St. Marks monthly precipitation with daily maximum

      St. Marks monthly snow depth with daily maximum

      St. Marks monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Panacea, FL9334020%
      Woodville, FL2,6424020%
      Wacissa, FL2634020%
      Crawfordville, FL4,1154020%
      St. Marks, FL2374020%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Coyanosa, TX2372844%
      Oak Ridge, MO2374412%
      Brinson, GA2373530%
      Mount Clare, IL237548%
      Cambridge, ID2373628%
      St. Marks, FL2374020%
      Source: The St. Marks, 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.