TODAY NOV21
TEMPERATURE47
HUMIDITY100
PRESSURE100070
WIND COND.70 14.8
  • 5340Fri20%90%
  • 5041Sat80%60%
  • 5238Sun
  • 5442Mon
  • 5536Tue40%30%
daynightWeather update from Hyannis, Barnstable Municipal-Boardman Airport at
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Weather Quick Facts

  • The highest monthly average temperature in East Dennis for August is 71.3 degrees
  • The lowest monthly average temperature in East Dennis for February is 29.4 degrees
  • The most monthly precipitation in East Dennis occurs in March with 9.7 inches
  • The air quality index in East Dennis is 14% better than the national average
  • The pollution index in East Dennis is 190% worse than the national average

Compare East Dennis, MA Weather

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      East Dennis 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
      January25°F40°F31°F7.2"
      February22°F38°F29°F3.1"
      March27°F44°F35°F9.7"
      April36°F54°F45°F8.7"
      May46°F62°F53°F6.7"
      June57°F73°F64°F1.9"
      July64°F79°F71°F5.2"
      August63°F81°F71°F3.1"
      September57°F75°F66°F9.5"
      October48°F65°F56°F7.3"
      November36°F54°F45°F5.9"
      December27°F42°F34°F5.5"

      East Dennis 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.
      IndexEast DennisMassachusettsNational
      Air quality index364042
      Pollution index7,903,8308,399,6102,726,193

      East Dennis air quality

      MeasurementTotal
      Days measured359
      Days with good air quality348
      Days with moderate air quality11
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.060%
      Benzene0.070%
      Carbon Tetrachloride0.010%
      Lead0.080%
      Mercury0.030%

      Average monthly East Dennis temperature with heat index

      East Dennis monthly precipitation with daily maximum

      East Dennis monthly snow depth with daily maximum

      East Dennis monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Orleans, MA1,5193628.0%
      Brewster, MA1,3473628.0%
      East Sandwich, MA3,6283628.0%
      South Dennis, MA2,8953628.0%
      West Dennis, MA2,4793628.0%
      East Dennis, MA3,0683628.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Saint-Jean-Baptiste, QC3,068n/a 
      North Lakeport, CA3,0673334.0%
      Fairport Harbor, OH3,0673432.0%
      Kingwood, WV3,0673628.0%
      Macon, MS3,0693628.0%
      East Dennis, MA3,0683628.0%
      Source: The East Dennis, MA 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.