TODAY DEC22
TEMPERATURE20
HUMIDITY59
PRESSURE102980
WIND COND.330 7.6
  • 3327Mon
  • 4227Tue30%
  • 3928
  • 4129Thu
  • 4334Fri40%
daynightWeather update from Hagerstown, Washington County Regional Airport at
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Weather Quick Facts

  • The highest monthly average temperature in State Line for July is 77.1 degrees
  • The lowest monthly average temperature in State Line for January is 32.3 degrees
  • The most monthly precipitation in State Line occurs in June with 4 inches
  • The air quality index in State Line is 5% better than the national average
  • The pollution index in State Line is 495% worse than the national average

Compare State Line, PA Weather

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      State 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
      January25°F41°F32°F2.2"
      February25°F43°F34°F1.8"
      March34°F55°F44°F2.3"
      April44°F67°F55°F3.3"
      May54°F76°F64°F3.9"
      June63°F84°F73°F4.0"
      July67°F88°F77°F3.3"
      August65°F85°F75°F2.8"
      September58°F79°F68°F3.2"
      October48°F67°F57°F3.6"
      November37°F55°F45°F2.1"
      December30°F46°F37°F3.0"

      State 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.
      IndexState LinePennsylvaniaNational
      Air quality index404542
      Pollution index16,230,7004,584,8052,726,193

      State Line air quality

      MeasurementTotal
      Days measured362
      Days with good air quality306
      Days with moderate air quality54
      Days w/ poor A.Q. for sensitive groups2
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.010%
      Benzene0.130%
      Carbon Tetrachloride0.090%
      Lead0.080%
      Mercury0.020%

      Average monthly State Line temperature with heat index

      State Line monthly precipitation with daily maximum

      State Line monthly snow depth with daily maximum

      State Line monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Guilford, PA3,5713628.0%
      Mont Alto, PA1,7563628.0%
      Marion, PA1,5513628.0%
      Chambersburg, PA21,0173628.0%
      McConnellsburg, PA1,0303628.0%
      State Line, PA3,5484020.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Calcium, NY3,5483530.0%
      Forty Mile County No. 8, AB3,548n/a 
      Pine Hills, CA3,5472746.0%
      Tiger Point, FL3,5474118.0%
      Sloan, NY3,5473922.0%
      State Line, PA3,5484020.0%
      Source: The State Line, PA 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.