TODAY APR19
TEMPERATURE51
HUMIDITY83
PRESSURE101970
WIND COND.80 11.2
  • 6153Fri40%
  • 6844Sat
  • 6146Sun
  • 6546Mon
  • 6752Tue
daynightWeather update from Annapolis, United States Naval Academy at
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Weather Quick Facts

  • The highest monthly average temperature in Cape St. Claire for July is 78.4 degrees
  • The lowest monthly average temperature in Cape St. Claire for January is 35.9 degrees
  • The most monthly precipitation in Cape St. Claire occurs in August with 7.1 inches
  • The air quality index in Cape St. Claire is 9% worse than the national average
  • The pollution index in Cape St. Claire is 28% worse than the national average

Compare Cape St. Claire, MD Weather

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      Cape St. Claire 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"

      Cape St. Claire 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.
      IndexCape St. ClaireMarylandNational
      Air quality index464342
      Pollution index3,494,0105,342,3672,726,193

      Cape St. Claire air quality information

      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

      Cape St. Claire air quality information

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

      Average monthly Cape St. Claire temperature with heat index

      Cape St. Claire monthly precipitation with daily maximum

      Cape St. Claire monthly snow depth with daily maximum

      Cape St. Claire monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Queenstown, MD9504118.0%
      Grasonville, MD3,5784118.0%
      Riviera Beach, MD12,780468.0%
      Annapolis, MD39,321468.0%
      Highland Beach, MD93468.0%
      Cape St. Claire, MD8,405468.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Arab, AL8,4054412.0%
      Socorro, NM8,406536.0%
      Salem, UT8,403468.0%
      Kapuskasing, ON8,403n/a 
      Greenville, MI8,4073824.0%
      Cape St. Claire, MD8,405468.0%
      Source: The Cape St. Claire, 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.