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Key findings

  • The highest monthly average temperature in Worcester for July is 71.7 degrees
  • The lowest monthly average temperature in Worcester for January is 25.6 degrees
  • The most monthly precipitation in Worcester occurs in October with 5.7 inches
  • The air quality index in Worcester is 20% better than the national average
  • The pollution index in Worcester is 444% worse than the national average

Compare Worcester, MA Weather

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      Worcester 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°F34°F26°F3.2"
      February18°F36°F27°F3.5"
      March25°F44°F34°F3.5"
      April37°F58°F47°F4.2"
      May48°F69°F58°F3.9"
      June55°F76°F65°F5.6"
      July63°F82°F72°F3.4"
      August61°F79°F69°F5.3"
      September55°F73°F63°F4.1"
      October44°F62°F52°F5.7"
      November33°F50°F41°F3.4"
      December25°F40°F32°F4.8"

      Worcester 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.
      IndexWorcesterMassachusettsNational
      Air quality index404050
      Pollution index14,818,2008,399,6102,726,193

      Worcester air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality312
      Days with moderate air quality52
      Days w/ poor A.Q. for sensitive groups1
      Days with unhealthy air quality0

      Worcester air quality information

      PollutantTotal
      Arsenic0.020%
      Benzene0.150%
      Carbon Tetrachloride0.050%
      Lead0.130%
      Mercury0.040%

      Average monthly Worcester temperature with heat index

      Worcester monthly precipitation with daily maximum

      Worcester monthly snow depth with daily maximum

      Worcester monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Southbridge Town, MA16,8244020.0%
      Oxford, MA5,9274020.0%
      Brookfield, MA6754020.0%
      North Brookfield, MA2,2784020.0%
      South Lancaster, MA1,7644020.0%
      Worcester, MA183,6774020.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Overland Park, KS183,775476.0%
      Knoxville, TN183,927468.0%
      Brownsville, TX182,1104412.0%
      Grand Prairie, TX185,631512.0%
      Newport News, VA181,6064020.0%
      Worcester, MA183,6774020.0%
      Source: The Worcester, 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.