TODAY JUN25
TEMPERATURE91
HUMIDITY
PRESSURE101460
WIND COND.
  • 9868Wed20%70%
  • 9169Thu30%40%
  • 9473Fri20%20%
  • 9473Sat30%50%
  • 9267Sun40%70%
daynightWeather update from Oak Ridge at
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Weather Quick Facts

  • The highest monthly average temperature in Harriman for August is 78.1 degrees
  • The lowest monthly average temperature in Harriman for January is 39.1 degrees
  • The most monthly precipitation in Harriman occurs in December with 6.3 inches
  • The air quality index in Harriman is 26% worse than the national average
  • The pollution index in Harriman is 166% worse than the national average

Compare Harriman, TN Weather

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      Harriman 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
      January31°F49°F39°F5.9"
      February31°F51°F40°F3.7"
      March40°F63°F50°F4.7"
      April48°F73°F60°F5.8"
      May56°F79°F67°F4.7"
      June65°F87°F75°F3.2"
      July68°F88°F77°F6.2"
      August69°F90°F78°F3.3"
      September62°F83°F71°F3.9"
      October49°F71°F59°F4.3"
      November38°F61°F48°F4.2"
      December33°F51°F41°F6.3"

      Harriman 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.
      IndexHarrimanTennesseeNational
      Air quality index537642
      Pollution index7,263,2202,454,9162,726,193

      Harriman air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality148
      Days with moderate air quality216
      Days w/ poor A.Q. for sensitive groups1
      Days with unhealthy air quality

      Harriman air quality information

      PollutantTotal
      Arsenic0.240%
      Benzene0.020%
      Carbon Tetrachloride0.003%
      Lead0.080%
      Mercury0.300%

      Average monthly Harriman temperature with heat index

      Harriman monthly precipitation with daily maximum

      Harriman monthly snow depth with daily maximum

      Harriman monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Midtown, TN1,126536.0%
      Loudon, TN5,829536.0%
      Oakdale, TN241536.0%
      Oliver Springs, TN3,918536.0%
      Coalfield, TN2,861536.0%
      Harriman, TN6,144536.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Bonnyville, AB6,142n/a 
      Silver Lake, NC6,1463432.0%
      Junction City, OR6,1403824.0%
      Latimer, MS6,1484216.0%
      East End, AR6,1504510.0%
      Harriman, TN6,144536.0%
      Source: The Harriman, TN 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.