TODAY DEC22
TEMPERATURE39
HUMIDITY38
PRESSURE102740
WIND COND.190 7.6
  • 4926Mon
  • 5233Tue
  • 5638
  • 5939Thu
  • 5744Fri20%40%
daynightWeather update from Elizabethton Municipal Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Erwin for August is 74.6 degrees
  • The lowest monthly average temperature in Erwin for January is 36.5 degrees
  • The most monthly precipitation in Erwin occurs in July with 5 inches
  • The air quality index in Erwin is 7% worse than the national average
  • The pollution index in Erwin is 83% better than the national average

Compare Erwin, TN Weather

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      Erwin 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
      January27°F48°F37°F4.1"
      February28°F49°F37°F2.4"
      March35°F60°F47°F3.1"
      April43°F70°F56°F4.1"
      May52°F77°F64°F2.9"
      June61°F85°F72°F3.6"
      July64°F86°F74°F5.0"
      August64°F88°F75°F2.9"
      September57°F81°F68°F3.8"
      October45°F70°F56°F2.7"
      November34°F60°F46°F2.7"
      December30°F50°F39°F4.3"

      Erwin 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.
      IndexErwinTennesseeNational
      Air quality index457642
      Pollution index457,6812,454,9162,726,193

      Erwin air quality

      MeasurementTotal
      Days measured365
      Days with good air quality236
      Days with moderate air quality108
      Days w/ poor A.Q. for sensitive groups21
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.000%
      Benzene0.010%
      Carbon Tetrachloride0.001%
      Lead0.000%
      Mercury0.000%

      Average monthly Erwin temperature with heat index

      Erwin monthly precipitation with daily maximum

      Erwin monthly snow depth with daily maximum

      Erwin monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Bakersville, NC7062648.0%
      Johnson City, TN66,9344510.0%
      Banner Hill, TN1,3964510.0%
      Jonesborough, TN5,5394510.0%
      Unicoi, TN3,5724510.0%
      Erwin, TN5,9104510.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Hampshire, IL5,9094216.0%
      South Hooksett, NH5,9113726.0%
      Progreso, TX5,9084216.0%
      Tay Valley, ON5,913n/a 
      Scituate, MA5,9054314.0%
      Erwin, TN5,9104510.0%
      Source: The Erwin, 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.