TODAY APR25
TEMPERATURE58
HUMIDITY51
PRESSURE102470
WIND COND. 5.4
  • 6245Fri
  • 6250Sat
  • 8060Sun
  • 8662Mon
  • 8560Tue30%
daynightWeather update from Gaithersburg - Montgomery County Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Ashton-Sandy Spring for July is 75.6 degrees
  • The lowest monthly average temperature in Ashton-Sandy Spring for January is 31.4 degrees
  • The most monthly precipitation in Ashton-Sandy Spring occurs in October with 9.4 inches
  • The air quality index in Ashton-Sandy Spring is 12% worse than the national average
  • The pollution index in Ashton-Sandy Spring is 455% worse than the national average

Compare Ashton-Sandy Spring, MD Weather

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      Ashton-Sandy Spring 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
      January24°F41°F31°F4.1"
      February26°F44°F34°F5.6"
      March34°F55°F43°F6.4"
      April44°F68°F55°F6.1"
      May55°F76°F64°F9.2"
      June63°F84°F72°F6.0"
      July66°F87°F76°F5.5"
      August64°F85°F73°F7.7"
      September58°F79°F67°F7.6"
      October46°F67°F55°F9.4"
      November36°F55°F44°F5.4"
      December30°F46°F37°F6.8"

      Ashton-Sandy Spring 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.
      IndexAshton-Sandy SpringMarylandNational
      Air quality index474342
      Pollution index15,133,0005,342,3672,726,193

      Ashton-Sandy Spring air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality209
      Days with moderate air quality145
      Days w/ poor A.Q. for sensitive groups10
      Days with unhealthy air quality1

      Ashton-Sandy Spring air quality information

      PollutantTotal
      Arsenic0.070%
      Benzene0.130%
      Carbon Tetrachloride0.060%
      Lead0.070%
      Mercury0.130%

      Average monthly Ashton-Sandy Spring temperature with heat index

      Ashton-Sandy Spring monthly precipitation with daily maximum

      Ashton-Sandy Spring monthly snow depth with daily maximum

      Ashton-Sandy Spring monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Monrovia, MD1,5564020.0%
      Lochearn, MD25,612468.0%
      Fort Meade, MD11,340468.0%
      North Laurel, MD24,856468.0%
      Columbia, MD105,412468.0%
      Ashton-Sandy Spring, MD6,239476.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Wailea, HI6,2391570.0%
      Gulf Park Estates, MS6,2383236.0%
      Powell, WY6,2382158.0%
      Prairie Grove, AR6,2364412.0%
      Vine Grove, KY6,2343922.0%
      Ashton-Sandy Spring, MD6,239476.0%
      Source: The Ashton-Sandy Spring, 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.