TODAY MAR29
TEMPERATURE39
HUMIDITY52
PRESSURE101290
WIND COND.300 11.2
  • 5245Sat20%50%
  • 6145Sun40%
  • 5345Mon80%90%
  • 5742Tue90%60%
  • 5136Wed50%50%
daynightWeather update from State College - University Park Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Port Royal for July is 71.9 degrees
  • The lowest monthly average temperature in Port Royal for January is 27.7 degrees
  • The most monthly precipitation in Port Royal occurs in August with 6 inches
  • The air quality index in Port Royal is 5% worse than the national average
  • The pollution index in Port Royal is 39% better than the national average

Compare Port Royal, PA Weather

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      Port Royal 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
      January22°F35°F28°F0.6"
      February22°F36°F28°F0.4"
      March30°F49°F39°F0.4"
      April41°F62°F51°F0.4"
      May50°F71°F60°F0.5"
      June58°F78°F68°F0.9"
      July62°F82°F72°F0.6"
      August60°F80°F69°F6.0"
      September54°F73°F63°F0.7"
      October44°F62°F53°F0.9"
      November34°F50°F42°F0.8"
      December27°F40°F33°F0.6"

      Port Royal 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.
      IndexPort RoyalPennsylvaniaNational
      Air quality index444542
      Pollution index1,656,4604,584,8052,726,193

      Port Royal air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality267
      Days with moderate air quality98
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Port Royal air quality information

      PollutantTotal
      Arsenic0.005%
      Benzene0.030%
      Carbon Tetrachloride0.002%
      Lead0.004%
      Mercury0.000%

      Average monthly Port Royal temperature with heat index

      Port Royal monthly precipitation with daily maximum

      Port Royal monthly snow depth with daily maximum

      Port Royal monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Beavertown, PA1,0803530.0%
      Blain, PA2303628.0%
      East Waterford, PA1743628.0%
      Granville, PA2424412.0%
      Millerstown, PA6994412.0%
      Port Royal, PA8934412.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Lansing, IA8933530.0%
      Long Grove, IA893468.0%
      Riverton, KS8933726.0%
      Gardiner, MT8932550.0%
      Hilshire Village, TX893524.0%
      Port Royal, PA8934412.0%
      Source: The Port Royal, 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.