TODAY NOV22
TEMPERATURE36
HUMIDITY79
PRESSURE100000
WIND COND.270 9.4
  • 4234Fri90%30%
  • 5240Sat
  • 5333Sun
  • 5843Mon30%
  • 5433Tue40%
daynightWeather update from York, York Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Grantley for July is 73.8 degrees
  • The lowest monthly average temperature in Grantley for February is 28.6 degrees
  • The most monthly precipitation in Grantley occurs in October with 10 inches
  • The air quality index in Grantley is 3% better than the national average
  • The pollution index in Grantley is 360% worse than the national average

Compare Grantley, PA Weather

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      Grantley 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
      January25°F42°F33°F4.1"
      February19°F39°F29°F3.3"
      March27°F51°F38°F7.5"
      April39°F62°F50°F7.2"
      May46°F73°F60°F3.6"
      June60°F84°F72°F4.8"
      July62°F86°F74°F7.7"
      August63°F86°F74°F8.7"
      September54°F81°F67°F0.4"
      October47°F71°F58°F10.0"
      November33°F57°F45°F4.7"
      December23°F41°F33°F4.8"

      Grantley 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.
      IndexGrantleyPennsylvaniaNational
      Air quality index414542
      Pollution index12,532,5004,584,8052,726,193

      Grantley air quality

      MeasurementTotal
      Days measured365
      Days with good air quality299
      Days with moderate air quality66
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.180%
      Benzene0.090%
      Carbon Tetrachloride0.020%
      Lead0.130%
      Mercury0.270%

      Average monthly Grantley temperature with heat index

      Grantley monthly precipitation with daily maximum

      Grantley monthly snow depth with daily maximum

      Grantley monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Mount Wolf, PA1,4134118.0%
      Elizabethtown, PA11,4454118.0%
      Fawn Grove, PA4624118.0%
      Glen Rock, PA2,3324118.0%
      Loganville, PA1,3114118.0%
      Grantley, PA4,3204118.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Chester, MD4,319468.0%
      Cornwall, PA4,3194216.0%
      Riva, MD4,321476.0%
      French Island, WI4,3183530.0%
      Pixley, CA4,3226632.0%
      Grantley, PA4,3204118.0%
      Source: The Grantley, 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.