TODAY NOV22
TEMPERATURE31
HUMIDITY89
PRESSURE100710
WIND COND.250 14.8
  • 4437Fri90%90%
  • 4735Sat90%30%
  • 5036Sun
  • 5636Mon80%
  • 4630Tue70%
daynightWeather update from Washington County Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Deemston for July is 70.8 degrees
  • The lowest monthly average temperature in Deemston for January is 29.3 degrees
  • The most monthly precipitation in Deemston occurs in July with 9.8 inches
  • The air quality index in Deemston is 14% better than the national average
  • The pollution index in Deemston is 67% better than the national average

Compare Deemston, PA Weather

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      Deemston 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
      January21°F38°F29°F4.4"
      February21°F40°F30°F3.5"
      March30°F52°F40°F5.0"
      April40°F64°F51°F4.5"
      May49°F72°F60°F6.0"
      June57°F79°F68°F8.6"
      July61°F82°F71°F9.8"
      August59°F81°F69°F6.1"
      September53°F76°F63°F6.0"
      October42°F64°F52°F4.2"
      November32°F54°F42°F3.7"
      December26°F43°F34°F4.5"

      Deemston 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.
      IndexDeemstonPennsylvaniaNational
      Air quality index364542
      Pollution index889,8084,584,8052,726,193

      Deemston air quality

      MeasurementTotal
      Days measured364
      Days with good air quality337
      Days with moderate air quality27
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.001%
      Benzene0.020%
      Carbon Tetrachloride0.002%
      Lead0.030%
      Mercury0.030%

      Average monthly Deemston temperature with heat index

      Deemston monthly precipitation with daily maximum

      Deemston monthly snow depth with daily maximum

      Deemston monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Millsboro, PA5033628.0%
      West Brownsville, PA1,1213628.0%
      Edenborn, PA1433628.0%
      Waynesburg, PA3,9753628.0%
      Crucible, PA3953628.0%
      Deemston, PA7023628.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Cherry Valley, AR7024510.0%
      Traver, CA7026632.0%
      Bradley Junction, FL7023628.0%
      Fort White, FL7023824.0%
      Schaller, IA7023530.0%
      Deemston, PA7023628.0%
      Source: The Deemston, 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.