TODAY FEB26
TEMPERATURE29
HUMIDITY51
PRESSURE30.28
WIND COND.320 9.4
  • 4026Fri
  • 4331Sat80%20%
  • 4635Sun20%40%
  • 5019Mon
  • 3321Tue
daynightWeather update from Windsor Locks, Bradley International Airport at

Key findings

  • The highest monthly average temperature in Rockville for July is 75 degrees
  • The lowest monthly average temperature in Rockville for January is 28 degrees
  • The most monthly precipitation in Rockville occurs in October with 5.9 inches
  • The air quality index in Rockville is 18% better than the national average
  • The pollution index in Rockville is 45% better than the national average

Compare Rockville, CT Weather

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      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
      January18°F38°F28°F3.3"
      February18°F40°F29°F3.6"
      March26°F50°F38°F3.6"
      April37°F65°F50°F4.0"
      May47°F75°F60°F4.0"
      June57°F82°F69°F5.5"
      July63°F88°F75°F4.9"
      August60°F86°F72°F4.9"
      September54°F80°F66°F3.9"
      October43°F67°F54°F5.9"
      November32°F55°F43°F3.2"
      December24°F44°F33°F4.5"

      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.
      IndexRockvilleConnecticutNational
      Air quality index414350
      Pollution index2,806,1507,127,5315,066,862

      Rockville air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality291
      Days with moderate air quality66
      Days w/ poor A.Q. for sensitive groups7
      Days with unhealthy air quality1

      Rockville air quality information

      PollutantTotal
      Arsenic0.004%
      Benzene0.030%
      Carbon Tetrachloride0.010%
      Lead0.040%
      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.
      Coventry Lake, CT3,1663334%
      Mansfield Center, CT9693334%
      South Windham, CT1,3303334%
      South Coventry, CT1,1423334%
      Storrs, CT16,0593334%
      Rockville, CT7,1784118%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Woodland Park, CO7,1804510%
      Mendota, IL7,1820100%
      Woodlake, VA7,1724412%
      Belen, NM7,184536%
      Acton, CA7,1707244%
      Rockville, CT7,1784118%
      Source: The Rockville, CT 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.