TODAY NOV24
TEMPERATURE39
HUMIDITY90
PRESSURE99590
WIND COND.250 24.1
  • 5335Sun
  • 5748Mon20%
  • 5632Tue60%
  • 4532Wed
  • 433350%60%
daynightWeather update from Phillips Army Air Field / Aberdeen at
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Weather Quick Facts

  • The highest monthly average temperature in Jarrettsville for July is 80 degrees
  • The lowest monthly average temperature in Jarrettsville for January is 34.7 degrees
  • The most monthly precipitation in Jarrettsville occurs in May with 8.1 inches
  • The air quality index in Jarrettsville is 9% worse than the national average
  • The pollution index in Jarrettsville is 260% worse than the national average

Compare Jarrettsville, MD Weather

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      Jarrettsville 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°F41°F35°F2.2"
      February28°F45°F37°F1.4"
      March36°F54°F45°F4.8"
      April46°F65°F56°F1.6"
      May55°F73°F65°F8.1"
      June64°F82°F75°F3.0"
      July70°F87°F80°F0.5"
      August67°F84°F76°F1.1"
      September61°F78°F70°F1.7"
      October50°F68°F59°F7.1"
      November39°F57°F48°F2.9"
      December33°F47°F40°F4.4"

      Jarrettsville 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.
      IndexJarrettsvilleMarylandNational
      Air quality index464342
      Pollution index9,823,9205,342,3672,726,193

      Jarrettsville air quality

      MeasurementTotal
      Days measured365
      Days with good air quality223
      Days with moderate air quality129
      Days w/ poor A.Q. for sensitive groups13
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.010%
      Benzene0.070%
      Carbon Tetrachloride0.050%
      Lead0.030%
      Mercury0.140%

      Average monthly Jarrettsville temperature with heat index

      Jarrettsville monthly precipitation with daily maximum

      Jarrettsville monthly snow depth with daily maximum

      Jarrettsville monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      New Freedom, PA4,6914118.0%
      Railroad, PA3214118.0%
      Fawn Grove, PA4624118.0%
      Shrewsbury, PA3,8424118.0%
      Glen Rock, PA2,3324118.0%
      Jarrettsville, MD2,827468.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Holualoa, HI2,8271668.0%
      Kings Beach, CA2,8264412.0%
      Granville, WV2,8283628.0%
      Villano Beach, FL2,8293138.0%
      Sheridan, IL2,8290100.0%
      Jarrettsville, MD2,827468.0%
      Source: The Jarrettsville, MD 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.