TODAY APR23
TEMPERATURE64
HUMIDITY22
PRESSURE101120
WIND COND.130 24.1
  • 4320Wed100%20%
  • 4225Thu
  • 5334Fri
  • 6146Sat60%
  • 6653Sun60%50%
daynightWeather update from Caledonia County Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Derby Line for July is 67.8 degrees
  • The lowest monthly average temperature in Derby Line for January is 16.7 degrees
  • The most monthly precipitation in Derby Line occurs in December with 5.4 inches
  • The air quality index in Derby Line is 5% better than the national average
  • The pollution index in Derby Line is 53% better than the national average

Compare Derby Line, VT Weather

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      Derby Line 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
      January7°F27°F17°F4.1"
      February8°F29°F18°F3.8"
      March17°F38°F27°F3.6"
      April31°F55°F43°F3.4"
      May43°F68°F55°F3.8"
      June53°F76°F63°F5.4"
      July57°F80°F68°F4.0"
      August55°F78°F66°F4.8"
      September48°F72°F59°F3.1"
      October38°F58°F47°F4.6"
      November27°F46°F36°F3.1"
      December15°F32°F23°F5.4"

      Derby Line 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.
      IndexDerby LineVermontNational
      Air quality index403642
      Pollution index1,278,4301,478,7722,726,193

      Derby Line air quality information

      MeasurementTotal
      Days measured324
      Days with good air quality314
      Days with moderate air quality10
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Derby Line air quality information

      PollutantTotal
      Arsenic0.001%
      Benzene0.020%
      Carbon Tetrachloride0.002%
      Lead0.010%
      Mercury0.001%

      Average monthly Derby Line temperature with heat index

      Derby Line monthly precipitation with daily maximum

      Derby Line monthly snow depth with daily maximum

      Derby Line monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Coventry, VT293726.0%
      Newport Center, VT2303726.0%
      North Troy, VT6273726.0%
      Irasburg, VT1063726.0%
      Orleans, VT9363726.0%
      Derby Line, VT6684020.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Blandinsville, IL6682942.0%
      Cedar Vale, KS6684020.0%
      Howard, KS6684020.0%
      Argyle, MN6683334.0%
      Pleasant Hope, MO6683922.0%
      Derby Line, VT6684020.0%
      Source: The Derby Line, VT 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.