TODAY APR19
TEMPERATURE74
HUMIDITY97
PRESSURE101660
WIND COND.150 7.6
  • 8669Fri
  • 8466Sat
  • 7456Sun80%60%
  • 7259Mon
  • 8065Tue
daynightWeather update from New Orleans, New Orleans International Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Harahan for August is 83.3 degrees
  • The lowest monthly average temperature in Harahan for January is 54.4 degrees
  • The most monthly precipitation in Harahan occurs in August with 8.5 inches
  • The air quality index in Harahan is 7% worse than the national average
  • The pollution index in Harahan is 42% worse than the national average

Compare Harahan, LA Weather

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      Harahan 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
      January45°F66°F54°F5.0"
      February47°F69°F57°F5.2"
      March53°F75°F64°F5.4"
      April60°F81°F71°F5.1"
      May67°F86°F76°F5.7"
      June74°F91°F82°F6.3"
      July75°F92°F83°F6.7"
      August76°F93°F83°F8.5"
      September73°F90°F81°F5.5"
      October62°F83°F72°F3.3"
      November52°F74°F62°F2.3"
      December48°F68°F57°F6.8"

      Harahan 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.
      IndexHarahanLouisianaNational
      Air quality index4510642
      Pollution index3,881,7302,526,4752,726,193

      Harahan air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality229
      Days with moderate air quality134
      Days w/ poor A.Q. for sensitive groups2
      Days with unhealthy air quality0

      Harahan air quality information

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

      Average monthly Harahan temperature with heat index

      Harahan monthly precipitation with daily maximum

      Harahan monthly snow depth with daily maximum

      Harahan monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Paradis, LA1,5084118.0%
      Bayou Gauche, LA1,7034118.0%
      Boutte, LA2,9444118.0%
      Destrehan, LA11,6584510.0%
      Norco, LA2,9934510.0%
      Harahan, LA9,2934510.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Girard, OH9,2934216.0%
      Cowichan Valley B, BC9,293n/a 
      Murrells Inlet, SC9,2921472.0%
      Saline, MI9,2964020.0%
      Steger, IL9,2895510.0%
      Harahan, LA9,2934510.0%
      Source: The Harahan, 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.