TODAY DEC22
TEMPERATURE47
HUMIDITY65
PRESSURE
WIND COND.120 14.8
  • 4334Mon90%70%
  • 4034Tue70%80%
  • 413590%
  • 4133Thu
  • 3932Fri
daynightWeather update from Petersburg at
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Weather Quick Facts

  • The highest monthly average temperature in Petersburg for August is 55.8 degrees
  • The lowest monthly average temperature in Petersburg for January is 29.9 degrees
  • The most monthly precipitation in Petersburg occurs in November with 23.1 inches
  • The air quality index in Petersburg is 52% better than the national average
  • The pollution index in Petersburg is 90% better than the national average

Compare Petersburg, AK Weather

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      Petersburg 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°F35°F30°F13.2"
      February28°F37°F32°F5.0"
      March31°F41°F35°F7.4"
      April35°F49°F41°F10.0"
      May42°F58°F49°F3.1"
      June47°F61°F54°F4.1"
      July51°F62°F55°F9.0"
      August49°F64°F56°F17.4"
      September46°F55°F50°F7.5"
      October38°F48°F43°F5.1"
      November33°F42°F37°F23.1"
      December28°F37°F32°F10.8"

      Petersburg 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.
      IndexPetersburgAlaskaNational
      Air quality index203042
      Pollution index285,87911,243,1942,726,193

      Petersburg air quality

      MeasurementTotal
      Days measured362
      Days with good air quality308
      Days with moderate air quality51
      Days w/ poor A.Q. for sensitive groups3
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.000%
      Benzene0.010%
      Carbon Tetrachloride0.000%
      Lead0.000%
      Mercury0.000%

      Average monthly Petersburg temperature with heat index

      Petersburg monthly precipitation with daily maximum

      Petersburg monthly snow depth with daily maximum

      Petersburg monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Kupreanof, AK62060.0%
      Petersburg, AK3,1702060.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Bushnell, FL3,1703040.0%
      Cadiz, OH3,1693922.0%
      Pickens, SC3,169468.0%
      Blue Ridge, VA3,1693824.0%
      Pictou, NS3,169n/a 
      Petersburg, AK3,1702060.0%
      Source: The Petersburg, AK 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.