TODAY DEC22
TEMPERATURE23
HUMIDITY41
PRESSURE103320
WIND COND.350 22.3
  • 3025Mon
  • 4027Tue30%
  • 3927
  • 4130Thu
  • 4533Fri
daynightWeather update from Philadelphia, Philadelphia International Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Folsom for July is 79.2 degrees
  • The lowest monthly average temperature in Folsom for January is 34.4 degrees
  • The most monthly precipitation in Folsom occurs in August with 5.8 inches
  • The air quality index in Folsom is 21% worse than the national average
  • The pollution index in Folsom is 20% better than the national average

Compare Folsom, PA Weather

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      Folsom 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"

      Folsom 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.
      IndexFolsomPennsylvaniaNational
      Air quality index514542
      Pollution index2,169,6004,584,8052,726,193

      Folsom 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
      Arsenic0.010%
      Benzene0.030%
      Carbon Tetrachloride0.002%
      Lead0.010%
      Mercury0.004%

      Average monthly Folsom temperature with heat index

      Folsom monthly precipitation with daily maximum

      Folsom monthly snow depth with daily maximum

      Folsom monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Glassboro, NJ20,0694020.0%
      Richwood, NJ3,9674020.0%
      Ardentown, DE240512.0%
      Greenwich, NJ2,747512.0%
      Brookhaven, PA8,045512.0%
      Folsom, PA8,706512.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Angola, IN8,7064510.0%
      Kirby, TX8,709492.0%
      Sanatoga, PA8,7104216.0%
      Lake Norman of Catawba, NC8,7013628.0%
      Cresskill, NJ8,701512.0%
      Folsom, PA8,706512.0%
      Source: The Folsom, 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.