TODAY JUN19
TEMPERATURE72
HUMIDITY100
PRESSURE30.05
WIND COND.
  • 9473Wed30%40%
  • 9373Thu40%40%
  • 9374Fri50%50%
  • 9373Sat50%50%
  • 9472Sun50%50%
daynightWeather update from Jacksonville, Cecil Field Airport at

Glen St. Mary Average Weather

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
January18°F82°F57°Fn/a
February18°F82°F57°Fn/a
March27°F88°F63°Fn/a
April30°F93°F69°Fn/a
May43°F97°F76°Fn/a
June54°F100°F80°Fn/a
July61°F99°F82°Fn/a
August63°F102°F82°Fn/a
September48°F95°F79°Fn/a
October30°F93°F71°Fn/a
November27°F84°F62°Fn/a
December27°F82°F58°Fn/a

Did you know?

  • The highest monthly average temperature in Glen St. Mary for August is 82 degrees.
  • The lowest monthly average temperature in Glen St. Mary for February is 57 degrees.
  • The most monthly precipitation in Glen St. Mary occurs in January with 0 inches.
  • The air quality index in Glen St. Mary is 23% better than the national average.
  • The pollution index in Glen St. Mary is 29% worse than the national average.

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Compare Glen St. Mary, FL Weather To Other Cities

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 measured365
Days with good air quality298
Days with moderate air quality67
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

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, FL1,8493824%
Macclenny, FL6,4513824%
Glen St. Mary, FL5663824%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Chazy, NY5663628%
Perrinton, MI5663432%
San Ygnacio, TX5663824%
New Hebron, MS5664216%
Dorchester, NE5663432%
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.