TODAY NOV02
TEMPERATURE56
HUMIDITY57
PRESSURE102810
WIND COND.310 14.8
  • 5942Sun
  • 6453Mon
  • 7560Tue
  • 7759Wed
  • 7153Thu40%
daynightWeather update from Annapolis, United States Naval Academy at
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Weather Quick Facts

  • The highest monthly average temperature in Riva for July is 78.4 degrees
  • The lowest monthly average temperature in Riva for January is 35.9 degrees
  • The most monthly precipitation in Riva occurs in August with 7.1 inches
  • The air quality index in Riva is 12% worse than the national average
  • The pollution index in Riva is 28% worse than the national average

Compare Riva, MD Weather

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      Riva 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
      January29°F44°F36°F4.8"
      February29°F45°F36°F3.9"
      March36°F54°F44°F5.5"
      April47°F66°F55°F5.8"
      May56°F73°F64°F6.3"
      June67°F83°F74°F6.4"
      July71°F86°F78°F6.7"
      August70°F84°F77°F7.1"
      September65°F80°F72°F5.9"
      October53°F69°F61°F6.4"
      November42°F58°F49°F5.2"
      December33°F48°F40°F5.9"

      Riva 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.
      IndexRivaMarylandNational
      Air quality index474342
      Pollution index3,494,0105,342,3672,726,193

      Riva air quality

      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

      Air quality details

      PollutantTotal
      Arsenic0.010%
      Benzene0.040%
      Carbon Tetrachloride0.002%
      Lead0.010%
      Mercury0.001%

      Average monthly Riva temperature with heat index

      Riva monthly precipitation with daily maximum

      Riva monthly snow depth with daily maximum

      Riva monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Arden on the Severn, MD1,457468.0%
      Crownsville, MD1,473468.0%
      Herald Harbor, MD2,414468.0%
      North Laurel, MD24,856468.0%
      Jessup, MD10,458468.0%
      Riva, MD4,321476.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Grantley, PA4,3204118.0%
      Pixley, CA4,3226632.0%
      Chester, MD4,319468.0%
      Cornwall, PA4,3194216.0%
      Buena, NJ4,3234020.0%
      Riva, MD4,321476.0%
      Source: The Riva, 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.