Current weather conditions temporarily unavailable!

Key findings

  • The highest monthly average temperature in Rockville for July is 76 degrees
  • The lowest monthly average temperature in Rockville for January is 31 degrees
  • The most monthly precipitation in Rockville occurs in October with 9.4 inches
  • The air quality index in Rockville is 5% better than the national average
  • The pollution index in Rockville is 190% worse than the national average

Compare Rockville, MD Weather

      vs
      How would you rate the weather in Rockville?
      Write a review to give others more information about this area.
      How would you rate the air quality in Rockville?
      Write a review to give others more information about this area.
      See all Rockville poll results

      Rockville 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"

      Rockville 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.
      IndexRockvilleMarylandNational
      Air quality index474350
      Pollution index14,693,9006,283,4705,066,862

      Rockville 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

      Rockville air quality information

      PollutantTotal
      Arsenic0.190%
      Benzene0.210%
      Carbon Tetrachloride0.060%
      Lead0.060%
      Mercury0.010%

      Average monthly Rockville temperature with heat index

      Rockville monthly precipitation with daily maximum

      Rockville monthly snow depth with daily maximum

      Rockville monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Oak Grove, VA2,037476%
      Washington, DC659,009476%
      Cottage City, MD1,209476%
      Langley Park, MD19,517476%
      Takoma Park, MD17,567476%
      Rockville, MD65,171476%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Youngstown, OH65,1614216%
      San Clemente, CA65,0828978%
      Delray Beach, FL65,0444118%
      Laguna Niguel, CA64,9848978%
      Marysville, WA64,9552452%
      Rockville, MD65,171476%
      Source: The Rockville, 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.