TODAY JUN25
TEMPERATURE91
HUMIDITY66
PRESSURE30.06
WIND COND.70 4.7
  • 9279Tue20%
  • 9180Wed20%40%
  • 9179Thu20%30%
  • 9279Fri
  • 9279Sat
daynightWeather update from New Orleans, Naval Air Station - Alvin Callender Field at

Gretna 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
January23°F80°F56°F2.8"
February28°F81°F58°F3.1"
March31°F83°F63°F1.3"
April39°F89°F69°F3.9"
May53°F92°F75°F4.2"
June63°F100°F81°F2.8"
July68°F97°F81°F4.8"
August65°F101°F82°F5.5"
September55°F97°F79°F3.6"
October37°F90°F70°F3.1"
November32°F82°F61°F1.8"
December28°F84°F56°F4.8"

Did you know?

  • The highest monthly average temperature in Gretna for August is 82 degrees.
  • The lowest monthly average temperature in Gretna for January is 56 degrees.
  • The most monthly precipitation in Gretna occurs in August with 5.5 inches.
  • The air quality index in Gretna is 9% better than the national average.
  • The pollution index in Gretna is 23% better than the national average.

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Compare Gretna, LA Weather To Other Cities

Gretna 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.
IndexGretnaLouisianaNational
Air quality index4510650
Pollution index3,881,7302,540,2835,066,862

Gretna air quality information

MeasurementTotal
Days measured365
Days with good air quality224
Days with moderate air quality116
Days w/ poor A.Q. for sensitive groups22
Days with unhealthy air quality3

Gretna air quality information

PollutantTotal
Arsenic0.000%
Benzene0.040%
Carbon Tetrachloride0.002%
Lead0.010%
Mercury0.000%

Average monthly Gretna temperature with heat index

Gretna monthly precipitation with daily maximum

Gretna monthly snow depth with daily maximum

Gretna monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
River Ridge, LA13,7064510%
Waggaman, LA9,6734510%
Arabi, LA4,5424510%
Bridge City, LA6,6634510%
Harahan, LA9,3214510%
Gretna, LA17,8324510%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Newburyport, MA17,8373628%
Cherry Hill, VA17,822492%
Arroyo Grande, CA17,8425612%
Durango, CO17,8174314%
St. Marys, GA17,8533138%
Gretna, LA17,8324510%
Source: The Gretna, LA 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.