TODAY MAR19
TEMPERATURE39
HUMIDITY62
PRESSURE100270
WIND COND. 7.6
  • 4534Tue
  • 4833Wed20%
  • 4327Thu
  • 4033Fri
  • 4634Sat50%50%
daynightWeather update from Chatham, Chatham Municipal Airport at
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Weather Quick Facts

  • The highest monthly average temperature in West Chatham for July is 71.9 degrees
  • The lowest monthly average temperature in West Chatham for February is 32.7 degrees
  • The most monthly precipitation in West Chatham occurs in October with 4.9 inches
  • The air quality index in West Chatham is 14% better than the national average
  • The pollution index in West Chatham is 190% worse than the national average

Compare West Chatham, MA Weather

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      West Chatham 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
      January26°F41°F33°F4.1"
      February25°F40°F33°F4.0"
      March31°F45°F38°F3.9"
      April40°F55°F47°F3.7"
      May49°F64°F55°F3.8"
      June57°F72°F64°F3.5"
      July65°F80°F72°F3.4"
      August63°F79°F71°F3.8"
      September58°F73°F65°F3.5"
      October49°F63°F56°F4.9"
      November39°F54°F47°F4.3"
      December31°F46°F39°F4.6"

      West Chatham 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.
      IndexWest ChathamMassachusettsNational
      Air quality index364042
      Pollution index7,903,8308,399,6102,726,193

      West Chatham air quality information

      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

      West Chatham air quality information

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

      Average monthly West Chatham temperature with heat index

      West Chatham monthly precipitation with daily maximum

      West Chatham monthly snow depth with daily maximum

      West Chatham monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Brewster, MA1,3473628.0%
      East Harwich, MA4,7563628.0%
      South Dennis, MA2,8953628.0%
      West Dennis, MA2,4793628.0%
      North Eastham, MA1,7413628.0%
      West Chatham, MA1,2243628.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Pioneer, CA1,2243922.0%
      Talahi Island, GA1,2243922.0%
      Conrad, IA1,2243922.0%
      Arenas Valley, NM1,2243726.0%
      Maywood Park, OR1,2243824.0%
      West Chatham, MA1,2243628.0%
      Source: The West Chatham, 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.