Current weather conditions temporarily unavailable!

Key findings

  • The highest monthly average temperature in Glen St. Mary for August is 80 degrees
  • The lowest monthly average temperature in Glen St. Mary for January is 53 degrees
  • The most monthly precipitation in Glen St. Mary occurs in June with 8.5 inches
  • The air quality index in Glen St. Mary is 24% better than the national average
  • The pollution index in Glen St. Mary is 29% worse than the national average

Compare Glen St. Mary, FL Weather

      vs
      How would you rate the weather in Glen St. Mary?
      Write a review to give others more information about this area.
      How would you rate the air quality in Glen St. Mary?
      Write a review to give others more information about this area.
      See all Glen St. Mary poll results

      Glen St. Mary 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
      January42°F66°F53°F3.3"
      February44°F67°F54°F2.5"
      March47°F71°F58°F1.8"
      April57°F81°F68°F3.0"
      May63°F86°F74°F4.4"
      June70°F90°F79°F8.5"
      July72°F91°F80°F4.8"
      August73°F90°F80°F6.6"
      September70°F87°F77°F4.3"
      October61°F81°F70°F2.7"
      November49°F73°F60°F0.7"
      December46°F69°F56°F1.9"

      Glen St. Mary 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.
      IndexGlen St. MaryFloridaNational
      Air quality index383550
      Pollution index6,554,71015,391,3445,066,862

      Glen St. Mary air quality information

      MeasurementTotal
      Days measured363
      Days with good air quality294
      Days with moderate air quality69
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Glen St. Mary air quality information

      PollutantTotal
      Arsenic0.020%
      Benzene0.040%
      Carbon Tetrachloride0.002%
      Lead0.070%
      Mercury0.010%

      Average monthly Glen St. Mary temperature with heat index

      Glen St. Mary monthly precipitation with daily maximum

      Glen St. Mary monthly snow depth with daily maximum

      Glen St. Mary monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Raiford, FL1703824%
      Baldwin, FL1,8494314%
      Macclenny, FL6,4514314%
      Glen St. Mary, FL5663824%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Brownsville, MN5663530%
      Chazy, NY5663726%
      San Ygnacio, TX5664118%
      Perrinton, MI5663628%
      South Van Horn, AK5663824%
      Glen St. Mary, FL5663824%
      Source: The Glen St. Mary, 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.