TODAY DEC22
TEMPERATURE28
HUMIDITY39
PRESSURE102410
WIND COND.330 27.7
  • 2610Sun
  • 3124Mon
  • 3926Tue40%
  • 4026
  • 4229Thu
daynightWeather update from Philadelphia, Philadelphia International Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Belmont for July is 79.2 degrees
  • The lowest monthly average temperature in Belmont for January is 34.4 degrees
  • The most monthly precipitation in Belmont occurs in August with 5.8 inches
  • The air quality index in Belmont is 21% worse than the national average
  • The pollution index in Belmont is 358% worse than the national average

Compare Philadelphia, PA Weather

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      Belmont 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°F44°F34°F3.3"
      February26°F46°F35°F2.6"
      March33°F56°F44°F3.6"
      April44°F68°F56°F4.0"
      May54°F77°F65°F3.9"
      June64°F86°F74°F4.8"
      July70°F90°F79°F5.0"
      August68°F87°F77°F5.8"
      September61°F82°F71°F4.3"
      October50°F70°F59°F4.7"
      November39°F59°F48°F2.8"
      December31°F49°F40°F4.7"

      Belmont 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.
      IndexBelmontPhiladelphiaPennsylvania
      Air quality index515145
      Pollution index12,485,10012,485,1004,584,805

      Belmont air quality

      MeasurementTotal
      Days measured365
      Days with good air quality180
      Days with moderate air quality169
      Days w/ poor A.Q. for sensitive groups16
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.020%
      Benzene0.100%
      Carbon Tetrachloride0.100%
      Lead0.120%
      Mercury0.010%

      Average monthly Belmont temperature with heat index

      Belmont monthly precipitation with daily maximum

      Belmont monthly snow depth with daily maximum

      Belmont monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Trevose, PA3,4604118.0%
      Langhorne, PA1,6164118.0%
      Bridgeport, PA4,576512.0%
      Darby, PA10,711512.0%
      King of Prussia, PA22,028512.0%
      Philadelphia, PA1,581,531512.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      San Antonio, TX1,529,133492.0%
      Phoenix, AZ1,658,4227448.0%
      San Diego, CA1,414,5456428.0%
      Calgary, AB1,371,990n/a 
      Montréal, QC1,811,008n/a 
      Philadelphia, PA1,581,531512.0%
      Source: The Belmont, Philadelphia, PA 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.