TODAY NOV21
TEMPERATURE68
HUMIDITY27
PRESSURE102340
WIND COND.290 11.2
  • 6440Fri
  • 7154Sat
  • 7860Sun
  • 7243Mon
  • 6751Tue
daynightWeather update from Rockwall Municipal Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Union Valley for July is 83.1 degrees
  • The lowest monthly average temperature in Union Valley for January is 45.9 degrees
  • The most monthly precipitation in Union Valley occurs in October with 13.3 inches
  • The air quality index in Union Valley is 21% worse than the national average
  • The pollution index in Union Valley is 1284% worse than the national average

Compare Union Valley, TX Weather

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      Union Valley 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
      January37°F59°F46°F6.3"
      February41°F64°F50°F4.5"
      March47°F70°F57°F6.1"
      April55°F77°F65°F8.2"
      May62°F82°F71°F8.7"
      June71°F91°F80°F9.1"
      July74°F94°F83°F9.0"
      August74°F94°F83°F8.4"
      September69°F91°F79°F9.7"
      October58°F81°F68°F13.3"
      November47°F68°F56°F7.5"
      December40°F60°F48°F7.9"

      Union Valley 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.
      IndexUnion ValleyTexasNational
      Air quality index515242
      Pollution index37,723,2002,009,3002,726,193

      Union Valley air quality

      MeasurementTotal
      Days measured365
      Days with good air quality181
      Days with moderate air quality155
      Days w/ poor A.Q. for sensitive groups28
      Days with unhealthy air quality1

      Air quality details

      PollutantTotal
      Arsenic0.060%
      Benzene0.290%
      Carbon Tetrachloride0.220%
      Lead0.230%
      Mercury0.020%

      Average monthly Union Valley temperature with heat index

      Union Valley monthly precipitation with daily maximum

      Union Valley monthly snow depth with daily maximum

      Union Valley monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Caddo Mills, TX1,666512.0%
      Josephine, TX1,488512.0%
      Nevada, TX872512.0%
      West Tawakoni, TX1,985512.0%
      Greenville, TX28,088512.0%
      Union Valley, TX528512.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Nezperce, ID5282942.0%
      Strasburg, IL5284020.0%
      Bancroft, KY528492.0%
      Gem Lake, MN528468.0%
      Marston, MO5282648.0%
      Union Valley, TX528512.0%
      Source: The Union Valley, 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.