TODAY NOV21
TEMPERATURE14
HUMIDITY86
PRESSURE
WIND COND.59 12.9
  • 2914Fri40%70%
  • 308Sat60%90%
  • 21-3Sun50%20%
  • 17-4Mon20%
  • 21-1Tue
daynightWeather update from POPLAR at
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Weather Quick Facts

  • The highest monthly average temperature in Brockton for July is 72.9 degrees
  • The lowest monthly average temperature in Brockton for December is 14.5 degrees
  • The most monthly precipitation in Brockton occurs in June with 2.7 inches
  • The air quality index in Brockton is 19% better than the national average
  • The pollution index in Brockton is 93% better than the national average

Compare Brockton, MT Weather

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      Brockton 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
      January4°F28°F15°F0.1"
      February7°F30°F17°F0.2"
      March19°F46°F31°F0.4"
      April30°F61°F44°F0.9"
      May40°F71°F55°F2.6"
      June49°F80°F65°F2.7"
      July56°F90°F73°F1.7"
      August53°F88°F70°F1.9"
      September43°F77°F59°F1.0"
      October31°F60°F44°F0.9"
      November17°F44°F29°F0.2"
      December4°F27°F14°F0.2"

      Brockton 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.
      IndexBrocktonMontanaNational
      Air quality index343442
      Pollution index192,968834,4732,726,193

      Brockton air quality

      MeasurementTotal
      Days measured365
      Days with good air quality309
      Days with moderate air quality53
      Days w/ poor A.Q. for sensitive groups3
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.000%
      Benzene0.002%
      Carbon Tetrachloride0.000%
      Lead0.000%
      Mercury0.000%

      Average monthly Brockton temperature with heat index

      Brockton monthly precipitation with daily maximum

      Brockton monthly snow depth with daily maximum

      Brockton monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Poplar, MT9713432.0%
      Brockton, MT3413432.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Midland, AR3413628.0%
      Shirley, AR3413628.0%
      Edmundson Acres, CA3416734.0%
      Mad River, CA3412746.0%
      Richfield, CA3414118.0%
      Brockton, MT3413432.0%
      Source: The Brockton, MT 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.