TODAY NOV21
TEMPERATURE37
HUMIDITY81
PRESSURE101800
WIND COND.
  • 4628Fri
  • 5238Sat
  • 6344Sun
  • 5325Mon20%
  • 4226Tue
daynightWeather update from Washington Regional Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Troy for July is 78.7 degrees
  • The lowest monthly average temperature in Troy for January is 32.1 degrees
  • The most monthly precipitation in Troy occurs in April with 5.3 inches
  • The air quality index in Troy is 28% worse than the national average
  • The pollution index in Troy is 12% worse than the national average

Compare Troy, MO Weather

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      Troy 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
      January23°F44°F32°F2.1"
      February25°F46°F35°F1.8"
      March36°F60°F47°F3.7"
      April46°F71°F58°F5.3"
      May55°F78°F66°F4.5"
      June65°F87°F76°F4.8"
      July68°F90°F79°F2.9"
      August66°F89°F77°F3.4"
      September58°F82°F69°F3.9"
      October46°F70°F57°F3.0"
      November36°F59°F46°F2.8"
      December27°F45°F35°F3.1"

      Troy 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.
      IndexTroyMissouriNational
      Air quality index549742
      Pollution index3,042,5301,630,2552,726,193

      Troy air quality

      MeasurementTotal
      Days measured365
      Days with good air quality134
      Days with moderate air quality221
      Days w/ poor A.Q. for sensitive groups8
      Days with unhealthy air quality2

      Air quality details

      PollutantTotal
      Arsenic0.010%
      Benzene0.040%
      Carbon Tetrachloride0.010%
      Lead0.010%
      Mercury0.001%

      Average monthly Troy temperature with heat index

      Troy monthly precipitation with daily maximum

      Troy monthly snow depth with daily maximum

      Troy monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Truxton, MO1443824.0%
      Pendleton, MO323922.0%
      Whiteside, MO854118.0%
      Silex, MO67548.0%
      Fountain N' Lakes, MO232548.0%
      Troy, MO12,457548.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Cheney, WA12,4554314.0%
      Fort Atkinson, WI12,4553726.0%
      Palos Heights, IL12,4605510.0%
      South Charleston, WV12,4614020.0%
      Mountain Home, AR12,4633628.0%
      Troy, MO12,457548.0%
      Source: The Troy, MO 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.