TODAY APR21
TEMPERATURE52
HUMIDITY97
PRESSURE101930
WIND COND.130 11.2
  • 6442Sun50%
  • 6843Mon
  • 7553Tue
  • 7958Wed
  • 8260Thu
daynightWeather update from Natchez, Hardy-Anders Field Natchez-Adams County Airport at
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Weather Quick Facts

  • The highest monthly average temperature in St. Joseph for August is 80 degrees
  • The lowest monthly average temperature in St. Joseph for January is 48.2 degrees
  • The most monthly precipitation in St. Joseph occurs in March with 7.6 inches
  • The air quality index in St. Joseph is 19% better than the national average
  • The pollution index in St. Joseph is 86% better than the national average

Compare St. Joseph, LA Weather

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      St. Joseph 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°F60°F48°F6.3"
      February42°F63°F51°F5.5"
      March50°F71°F59°F7.6"
      April56°F78°F66°F5.7"
      May63°F84°F72°F5.2"
      June70°F90°F79°F4.4"
      July72°F90°F80°F6.6"
      August72°F91°F80°F7.0"
      September67°F86°F75°F4.0"
      October56°F78°F66°F3.8"
      November46°F69°F56°F4.0"
      December42°F62°F51°F5.7"

      St. Joseph 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. JosephLouisianaNational
      Air quality index3410642
      Pollution index387,8752,526,4752,726,193

      St. Joseph air quality information

      MeasurementTotal
      Days measured363
      Days with good air quality335
      Days with moderate air quality28
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      St. Joseph air quality information

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

      Average monthly St. Joseph temperature with heat index

      St. Joseph monthly precipitation with daily maximum

      St. Joseph monthly snow depth with daily maximum

      St. Joseph monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Spokane, LA4423040.0%
      Newellton, LA1,0473432.0%
      Waterproof, LA9013432.0%
      Alcorn State University, MS9914412.0%
      Fayette, MS1,5304412.0%
      St. Joseph, LA7893432.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Leighton, AL7893726.0%
      New Hartford, IA7893922.0%
      Bartelso, IL7894314.0%
      Livingston, IL789548.0%
      Cheneyville, LA7893040.0%
      St. Joseph, LA7893432.0%
      Source: The St. Joseph, 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.