TODAY JUL19
TEMPERATURE86
HUMIDITY63
PRESSURE29.98
WIND COND.140 5.8
  • 10377Fri
  • 10377Sat
  • 10478Sun
  • 10578Mon
  • 10279Tue
daynightWeather update from San Antonio, San Antonio 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
January22°F88°F55°F0.8"
February23°F93°F59°F0.6"
March30°F96°F66°F3.1"
April36°F102°F72°F1.3"
May50°F102°F79°F3.1"
June61°F105°F85°F2.2"
July67°F106°F85°F3.1"
August70°F104°F86°F1.6"
September55°F108°F81°F2.1"
October34°F97°F72°F2.5"
November28°F93°F64°F1.7"
December21°F84°F55°F1.0"

Did you know?

  • The highest monthly average temperature in Jefferson for August is 86 degrees.
  • The lowest monthly average temperature in Jefferson for December is 55 degrees.
  • The most monthly precipitation in Jefferson occurs in March with 3.1 inches.
  • The air quality index in Jefferson is 9% better than the national average.
  • The pollution index in Jefferson is 377% worse than the national average.

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Compare San Antonio, TX Weather To Other Cities

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.
IndexJeffersonSan AntonioTexas
Air quality index454552
Pollution index24,182,70024,182,7004,642,916

Jefferson air quality information

MeasurementTotal
Days measured365
Days with good air quality249
Days with moderate air quality106
Days w/ poor A.Q. for sensitive groups10
Days with unhealthy air quality

Jefferson air quality information

PollutantTotal
Arsenic0.310%
Benzene0.310%
Carbon Tetrachloride0.080%
Lead0.140%
Mercury0.230%

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.
Garden Ridge, TX3,7304510%
Hollywood Park, TX3,2574510%
Live Oak, TX15,0214510%
Shavano Park, TX3,4424510%
Windcrest, TX5,7094510%
San Antonio, TX1,439,3584510%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
San Diego, CA1,374,8126122%
Phoenix, AZ1,555,3247448%
Philadelphia, PA1,559,9385714%
Dallas, TX1,278,433548%
San Jose, CA1,009,363484%
San Antonio, TX1,439,3584510%
Source: The Jefferson, San Antonio, TX 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.