TODAY APR23
TEMPERATURE57
HUMIDITY88
PRESSURE100950
WIND COND.230 27.7
  • 4236Wed
  • 5845Thu
  • 6659Fri50%
  • 7462Sat
  • 7456Sun
daynightWeather update from Gary Regional Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Gary for July is 75.8 degrees
  • The lowest monthly average temperature in Gary for January is 28.6 degrees
  • The most monthly precipitation in Gary occurs in July with 9.5 inches
  • The air quality index in Gary is 31% worse than the national average
  • The pollution index in Gary is 2843% worse than the national average

Compare Gary, IN Weather

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      Gary 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
      January22°F35°F29°F3.1"
      February22°F36°F29°F1.8"
      March34°F49°F41°F8.5"
      April43°F62°F52°F4.3"
      May53°F72°F62°F7.9"
      June62°F80°F71°F3.6"
      July67°F83°F76°F9.5"
      August65°F82°F74°F6.3"
      September58°F76°F67°F7.6"
      October47°F65°F56°F8.0"
      November37°F52°F44°F5.7"
      December27°F39°F33°F2.7"

      Gary 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.
      IndexGaryIndianaNational
      Air quality index555642
      Pollution index80,238,7042,719,4532,726,193

      Gary air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality121
      Days with moderate air quality227
      Days w/ poor A.Q. for sensitive groups16
      Days with unhealthy air quality1

      Gary air quality information

      PollutantTotal
      Arsenic0.760%
      Benzene0.560%
      Carbon Tetrachloride0.280%
      Lead0.480%
      Mercury0.480%

      Average monthly Gary temperature with heat index

      Gary monthly precipitation with daily maximum

      Gary monthly snow depth with daily maximum

      Gary monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Crown Point, IN30,3723726.0%
      Hobart, IN28,1203726.0%
      Portage, IN36,5243726.0%
      Wheeler, IN2293726.0%
      Merrillville, IN34,8713726.0%
      Gary, IN75,4865510.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Georgetown, TX75,4704412.0%
      Bethlehem, PA75,5714216.0%
      St. Joseph, MO75,3694314.0%
      Missouri City, TX75,348524.0%
      Carmichael, CA75,642524.0%
      Gary, IN75,4865510.0%
      Source: The Gary, IN 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.