TODAY DEC25
TEMPERATURE40
HUMIDITY79
PRESSURE102740
WIND COND.90 7.6
  • 4531Thu
  • 5042Fri50%
  • 5850Sat80%80%
  • 5742Sun90%70%
  • 5036Mon50%
daynightWeather update from Washington County Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Canonsburg for July is 70.8 degrees
  • The lowest monthly average temperature in Canonsburg for January is 29.3 degrees
  • The most monthly precipitation in Canonsburg occurs in July with 9.8 inches
  • The air quality index in Canonsburg is 33% worse than the national average
  • The pollution index in Canonsburg is 7% better than the national average

Compare Canonsburg, PA Weather

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      Canonsburg 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
      January21°F38°F29°F4.4"
      February21°F40°F30°F3.5"
      March30°F52°F40°F5.0"
      April40°F64°F51°F4.5"
      May49°F72°F60°F6.0"
      June57°F79°F68°F8.6"
      July61°F82°F71°F9.8"
      August59°F81°F69°F6.1"
      September53°F76°F63°F6.0"
      October42°F64°F52°F4.2"
      November32°F54°F42°F3.7"
      December26°F43°F34°F4.5"

      Canonsburg 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.
      IndexCanonsburgPennsylvaniaNational
      Air quality index564542
      Pollution index2,548,0304,584,8052,726,193

      Canonsburg air quality

      MeasurementTotal
      Days measured365
      Days with good air quality129
      Days with moderate air quality220
      Days w/ poor A.Q. for sensitive groups12
      Days with unhealthy air quality4

      Air quality details

      PollutantTotal
      Arsenic0.220%
      Benzene0.040%
      Carbon Tetrachloride0.010%
      Lead0.050%
      Mercury0.020%

      Average monthly Canonsburg temperature with heat index

      Canonsburg monthly precipitation with daily maximum

      Canonsburg monthly snow depth with daily maximum

      Canonsburg monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Green Hills, PA143922.0%
      Claysville, PA8413922.0%
      Taylorstown, PA2603922.0%
      Atlasburg, PA545468.0%
      Langeloth, PA707468.0%
      Canonsburg, PA8,8155612.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Miramar Beach, FL8,8153138.0%
      Scott, LA8,8154118.0%
      Fort Valley, GA8,8173824.0%
      Cypress County, AB8,817n/a 
      Oxford, NC8,8124412.0%
      Canonsburg, PA8,8155612.0%
      Source: The Canonsburg, 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.