TODAY SEP19
TEMPERATURE
HUMIDITY
PRESSURE
WIND COND.
  • 7757Mon
  • 7664Tue20%
  • 7761Wed30%70%
  • 7253Thu70%50%
  • 7252Fri
daynightWeather update from Williamsport - Lycoming County Airport at

Key findings

  • The highest monthly average temperature in South Williamsport for July is 73.9 degrees
  • The lowest monthly average temperature in South Williamsport for January is 28.3 degrees
  • The most monthly precipitation in South Williamsport occurs in August with 5.3 inches
  • The air quality index in South Williamsport is 30% better than the national average
  • The pollution index in South Williamsport is 70% better than the national average

Compare South Williamsport, PA Weather

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      South Williamsport 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
      January20°F38°F28°F3.1"
      February19°F40°F29°F2.4"
      March28°F52°F39°F3.1"
      April38°F66°F51°F3.8"
      May48°F75°F61°F3.9"
      June58°F83°F70°F4.1"
      July62°F87°F74°F4.7"
      August60°F84°F71°F5.3"
      September54°F79°F65°F4.3"
      October43°F66°F53°F4.9"
      November32°F54°F42°F3.0"
      December26°F43°F34°F4.0"

      South Williamsport 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.
      IndexSouth WilliamsportPennsylvaniaNational
      Air quality index354550
      Pollution index1,515,2004,327,9925,066,862

      South Williamsport air quality information

      MeasurementTotal
      Days measured361
      Days with good air quality340
      Days with moderate air quality21
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      South Williamsport air quality information

      PollutantTotal
      Arsenic0.050%
      Benzene0.020%
      Carbon Tetrachloride0.002%
      Lead0.020%
      Mercury0.010%

      Average monthly South Williamsport temperature with heat index

      South Williamsport monthly precipitation with daily maximum

      South Williamsport monthly snow depth with daily maximum

      South Williamsport monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      West Milton, PA1,0523530%
      Muncy, PA2,3933530%
      Kenmar, PA4,3733530%
      Dewart, PA1,3083530%
      McEwensville, PA4123530%
      South Williamsport, PA6,3283530%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Indian Hills, NV6,3284118%
      Huntington Woods, MI6,3305612%
      Tanglewilde, WA6,3263040%
      Selma, NC6,3254020%
      Gorham, ME6,3314020%
      South Williamsport, PA6,3283530%
      Source: The South Williamsport, 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.