TODAY DEC23
TEMPERATURE65
HUMIDITY64
PRESSURE102070
WIND COND.140 24.1
  • 7563Mon
  • 7861Tue20%
  • 7464
  • 7754Thu30%
  • 7657Fri
daynightWeather update from San Antonio - Kelly Field at
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Weather Quick Facts

  • The highest monthly average temperature in Prospect Hill for August is 85.8 degrees
  • The lowest monthly average temperature in Prospect Hill for January is 53.2 degrees
  • The most monthly precipitation in Prospect Hill occurs in May with 4.4 inches
  • The air quality index in Prospect Hill is 16% worse than the national average
  • The pollution index in Prospect Hill is 787% worse than the national average

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      Prospect Hill 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
      January42°F67°F53°F2.4"
      February47°F71°F57°F1.2"
      March54°F78°F64°F2.5"
      April60°F84°F71°F2.4"
      May67°F89°F77°F4.4"
      June73°F95°F83°F1.8"
      July75°F97°F84°F2.3"
      August75°F99°F86°F2.9"
      September71°F93°F81°F3.2"
      October62°F86°F73°F2.4"
      November53°F76°F63°F1.5"
      December45°F67°F55°F1.8"

      Prospect Hill 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.
      IndexProspect HillSan AntonioTexas
      Air quality index494952
      Pollution index24,182,70024,182,7002,009,300

      Prospect Hill air quality

      MeasurementTotal
      Days measured365
      Days with good air quality196
      Days with moderate air quality163
      Days w/ poor A.Q. for sensitive groups5
      Days with unhealthy air quality1

      Air quality details

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

      Average monthly Prospect Hill temperature with heat index

      Prospect Hill monthly precipitation with daily maximum

      Prospect Hill monthly snow depth with daily maximum

      Prospect Hill monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      China Grove, TX1,239492.0%
      Shavano Park, TX3,874492.0%
      Castle Hills, TX4,459492.0%
      Helotes, TX9,525492.0%
      Elmendorf, TX1,583492.0%
      San Antonio, TX1,529,133492.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Philadelphia, PA1,581,531512.0%
      San Diego, CA1,414,5456428.0%
      Phoenix, AZ1,658,4227448.0%
      Calgary, AB1,371,990n/a 
      Dallas, TX1,338,846512.0%
      San Antonio, TX1,529,133492.0%
      Source: The Prospect Hill, 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.