TODAY NOV21
TEMPERATURE44
HUMIDITY55
PRESSURE101830
WIND COND.260 16.6
  • 5133Fri
  • 5736Sat
  • 6448Sun
  • 7054Mon40%
  • 6446Tue20%
daynightWeather update from Birmingham, Birmingham International Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Mountain Brook for July is 80.6 degrees
  • The lowest monthly average temperature in Mountain Brook for January is 44.9 degrees
  • The most monthly precipitation in Mountain Brook occurs in July with 6.2 inches
  • The air quality index in Mountain Brook is 26% worse than the national average
  • The pollution index in Mountain Brook is 597% worse than the national average

Compare Mountain Brook, AL Weather

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      Mountain Brook 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
      January35°F56°F45°F5.0"
      February38°F59°F47°F5.3"
      March46°F69°F56°F5.6"
      April53°F77°F65°F5.9"
      May61°F82°F71°F4.9"
      June70°F90°F79°F4.6"
      July72°F91°F81°F6.2"
      August72°F91°F80°F5.0"
      September66°F86°F75°F4.0"
      October54°F77°F64°F3.3"
      November43°F67°F54°F3.6"
      December39°F58°F48°F5.7"

      Mountain Brook 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.
      IndexMountain BrookAlabamaNational
      Air quality index533742
      Pollution index18,988,2003,012,3392,726,193

      Mountain Brook air quality

      MeasurementTotal
      Days measured365
      Days with good air quality150
      Days with moderate air quality197
      Days w/ poor A.Q. for sensitive groups18
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.570%
      Benzene0.220%
      Carbon Tetrachloride0.040%
      Lead1.020%
      Mercury1.230%

      Average monthly Mountain Brook temperature with heat index

      Mountain Brook monthly precipitation with daily maximum

      Mountain Brook monthly snow depth with daily maximum

      Mountain Brook monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Brookside, AL1,120536.0%
      Gardendale, AL14,021536.0%
      Lipscomb, AL2,055536.0%
      Pelham, AL23,707536.0%
      Leeds, AL12,555536.0%
      Mountain Brook, AL20,178536.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Payson, UT20,181468.0%
      Nogales, AZ20,1823138.0%
      Kinston, NC20,1734216.0%
      La Crescenta-Montrose, CA20,1717244.0%
      Kirkland, QC20,189n/a 
      Mountain Brook, AL20,178536.0%
      Source: The Mountain Brook, AL 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.