TODAY AUG21
TEMPERATURE80
HUMIDITY97
PRESSURE30.03
WIND COND.250 4.7
  • 9177Wed
  • 9077Thu
  • 9077Fri20%20%
  • 8977Sat
  • 9178Sun
daynightWeather update from New Orleans, New Orleans International Airport at

Jefferson 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
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"

Did you know?

  • The highest monthly average temperature in Jefferson for August is 83 degrees.
  • The lowest monthly average temperature in Jefferson for January is 54 degrees.
  • The most monthly precipitation in Jefferson occurs in August with 8.5 inches.
  • The air quality index in Jefferson is 9% better than the national average.
  • The pollution index in Jefferson is 23% better than the national average.

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Jefferson 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.
IndexJeffersonLouisianaNational
Air quality index4510650
Pollution index3,881,7302,540,2835,066,862

Jefferson 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

Jefferson air quality information

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

Average monthly Jefferson temperature with heat index

Jefferson monthly precipitation with daily maximum

Jefferson monthly snow depth with daily maximum

Jefferson monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Boutte, LA2,5973432%
Ama, LA1,3494510%
Elmwood, LA4,6584510%
Harvey, LA20,1024510%
Luling, LA12,8554510%
Jefferson, LA10,5324510%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Royse City, TX10,532548%
Milford, DE10,5323824%
Forest, VA10,537275450%
Maynard, MA10,5263824%
Farmington, MI10,526524%
Jefferson, LA10,5324510%
Source: The Jefferson, 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.